paleoData_variableName
The name of a measured or inferred variable at the column level.
accumulation
Definition
a formation rate that is the rate of accumulation of a bulk archive material (e.g., sediment, ice, etc).
source: PaST
Known synonyms
Accumulation rate ice (kg/m2/yr), acc, Accumulation, Ice Accumulation
NOAA PaST Thesaurus term
accumulation rate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=618)
ACL
Definition
a chain length index that is the average number of carbon atoms within organic compound chains in a sample.
source: PaST
Known synonyms
AverageChainLength20to30, AverageChainLength20to32, ACL (27-33), ACL25-35, ACL27-31, ACLC22-30, Average Chain Length
NOAA PaST Thesaurus term
average chain length (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4170)
AET/PET
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
age
Definition
the age, either directly measured or inferred, of the midpoint of a sample.
source: PaST
Known synonyms
ageMedian, ageOriginal, ageMedianBacon, agelinInterp, ageBchron, agecopRa, ageDuplicate, ageStalAge, ageBacon, agelinReg, ageOxCal, Age, medianAge, ageEnsemble, ageMarine09, Median cal age, SHCal04Age, age_alt, age_Calibrated, Age_original, ageOther, ageRounded, IntCal09Age, Marine09, varveCountedAgeAD0x2FBC, varveCountedAgeKa
age14C
Definition
an duration unit of years, derived from radiocarbon dating without calibration to actual years.
source: PaST
Known synonyms
c14age, C14age, radiocarbonDatesAD0x2FBC
NOAA PaST Thesaurus term
radiocarbon year (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3914)
Al
Definition
a chemical element with atomic number 13.
source: PaST
Known synonyms
AlProp, Al peak area
NOAA PaST Thesaurus term
aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=774)
Al2O3
Definition
an inorganic compound that has the chemical formula Al2O3.
source: PaST
Known synonyms
AL2O3
NOAA PaST Thesaurus term
aluminum oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=305)
ammonium
Definition
an inorganic compound that has the chemical formula NH4(+).
source: PaST
Known synonyms
NH4_
NOAA PaST Thesaurus term
ammonium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=826)
amps
Definition
an electric current unit which is equal to the constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 m apart in vacuum, would produce between these conductors a force equal to 2 x 101 newton per meter of length (Credit: Units of measurement ontology).
source: PaST
Known synonyms
Amps
aragonite
Definition
a calcium carbonate with orthorhombic crystal structure.
source: PaST
Known synonyms
Aragonite
NOAA PaST Thesaurus term
aragonite (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1519)
ARM/IRM
Definition
a magnetic ratio of the anhysteretic remanent magnetization to the isothermal remanent magnetization, which can yield a qualitative measure of magnetic grain size (higher values indicating finer grain sizes).
source: PaST
Known synonyms
arm_irm
ARSTAN
Definition
a tree ring chronology method that uses Program ARSTAN, developed by Dr. Edward R. Cook at the Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York (Cook 1985), in its standard configuration but with autoregressive modeling to remove autocorrelation and further reincorporation of the pooled autoregression (persistence) into the resultant chronology.
source: PaST
Known synonyms
ARS
NOAA PaST Thesaurus term
ARSTAN chronology method (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1591)
ash
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Ba
Definition
a chemical element with atomic number 56.
source: PaST
Known synonyms
Ba (ppm), ppm Ba, Ba peak area
Ba/Al
Definition
the elemental ratio of barium to aluminum.
source: PaST
Known synonyms
ppmBa/%Al
NOAA PaST Thesaurus term
barium/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2410)
Ba/Ca
Definition
the elemental ratio of barium to calcium.
source: PaST
Known synonyms
Ba_Ca, BaCa
NOAA PaST Thesaurus term
barium/calcium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=317)
Be
Definition
a chemical element with atomic number 4.
source: PaST
Known synonyms
ppm Be
NOAA PaST Thesaurus term
beryllium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=833)
BIT
Definition
an organic compound index that is the abundance of branched tetraethers relative to isoprenoid tetraethers, indicative of the relative amounts of soil organic matter and aquatic organic matter.
source: PaST
Known synonyms
BITindex, BITindex-3pt
NOAA PaST Thesaurus term
branched and isoprenoid tetraether index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1676)
Br
Definition
a chemical element with atomic number 35.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
bromine (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1634)
brGDGT-Ia
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIa, Ia
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-Ib
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIb, Ib, br1020, Br1020
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-Ic
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
Ic
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-Id
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
Id
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIa
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIia, IIa, br1036, Br1036
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIa’{#brGDGT-IIa’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIa’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIb
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIib, IIb
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIb’{#brGDGT-IIb’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIb’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIc
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIc
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIc’{#brGDGT-IIc’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIc’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIIa
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIIIa, IIIa, br1050, Br1050
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIIa’{#brGDGT-IIIa’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIIa’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIIb
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
brGDGTIIIb, IIIb, br1048, Br1048
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
needsToBeChanged
Known synonyms
aridity, d13o_pachyderma, distance, 10%max, 10%min, 20%max, 20%min, 30%max, 30%min, 50%max, 50%min, 80%max, 80%min, C170x2D28, calibrated, CI, CIA, CMT, CT, JulT-eSEP, Laminae, PPexp, RRA, tempSource, TSAR5pt, water, WMT, thisShouldntBeEmpty, TS, Unit, unnamed, BS, BS_COMX, BS_Landscape_Openness, Di, DryElements, E2Hterr-2Haq, Eaq-p, eSEP_PLS_C2, eSEP_WMAT, HC/G, HII (H-set), HII (N-set), HII std (H-set), HII std (N-set), HulunNuur, -, ((( null ))) AC Ratio? /// pollenRatio, 100yrSum, 10YrRun.Avg., A odd (25-35), A/C, A/C Ratio, Alkenones, Analogues, Analogues#, bag, Bag, bagDepth, benth, Benthic, Cal, CAST1, CAST2, CMT_max, CMT_min, CMTmax, CMTmin, D, d0x2800x2E10x29, d0x2800x2E50x29, d0x2800x2E90x29, DEC, dln, Intv0x2E, kyryr BP2, log[EM3/(EM1+EM2)], LORCA, lower band, LSR (cm/ky), Lyc.added, Mag0x2E, Mark add, Mark found, Mean consensus, Mean_anomaly, mineral, Minidiscus?, Mode, MoistElements, MST, n-Alkane, NE.ars, OEP, s, S52, stage, Taraxer-14-ene concentration, TCT, Th13C, thin-mid, TOTC, Ts, TSAR, TT, Water/relict ice age, x00x2E020xB5m0x2D30x2E890xB5m, x10000x2E010xB5m0x2D20000x2E000xB5m, x1250x2E000xB5m0x2D2490x2E990xB5m, x150x2E600xB5m0x2D300x2E990xB5m, x2500x2E000xB5m0x2D4990x2E990xB5m, x30x2E900xB5m0x2D70x2E790xB5m, x310x2E000xB5m0x2D620x2E490xB5m, x5000x2E000xB5m0x2D10000x2E000xB5m, x620x2E500xB5m0x2D1240x2E990xB5m, x70x2E800xB5m0x2D150x2E590xB5m, drive-type, EM1, EM2, EM3, EMI, IMI, MG0, MShellCrn, Reconstructed, thisShouldntBeEmpty1, WACLS, WACLS_total, WAINV, WAINV_total, WAPLS-2, U_xs
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST
brGDGT-IIIb’{#brGDGT-IIIb’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIIb’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIIc
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIIc
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
brGDGT-IIIc’{#brGDGT-IIIc’}
Definition
a glycerol dialkyl glycerol tetraether that has branched alkyl chains and that is of bacterial origin.
source: PaST
Known synonyms
IIIc’
NOAA PaST Thesaurus term
branched glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1675)
BSi
Definition
a hydrated, amorphous form of silicon dioxide with the formula SiO2•nH20 that is biogenically precipitated by a variety of organisms including chrysophytes, diatoms, radiolarians, silicoflagellates, and sponges (Credit: Last et al. 2001 Tracking Environmental Change Using Lake Sediments).
source: PaST
Known synonyms
Bsi_3pt, Bsi_Raw, Inferred BSi, BioSi
NOAA PaST Thesaurus term
biogenic silica (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4018)
bubbleNumberDensity
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
bulkDensity
Definition
The density of bulk sediment measured in mass divided by volume
source: LinkedEarth
Known synonyms
bulk density
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
C/N
Definition
the elemental ratio of carbon to nitrogen.
source: PaST
Known synonyms
molarCN, C_N, C/N organic
NOAA PaST Thesaurus term
carbon/nitrogen (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=750)
C20n-alkenoicAcid
Definition
a n-alkanoic acid with the formula C19H39COOH.
source: PaST
Known synonyms
C20 n, C20FAMEconcentration, C20 concentration, C20 FAME Concentration, C20concentration, C20n, C20SEM, C20 SEM
NOAA PaST Thesaurus term
C20 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3961)
C21n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C20H41COOH.
source: PaST
Known synonyms
C21FAMEconcentration, C21 concentration, C21 FAME Concentration
NOAA PaST Thesaurus term
C21 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3962)
C22n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C21H43COOH.
source: PaST
Known synonyms
C22 n, C22FAMEconcentration, C22 FAME Concentration, C22concentration, C22n, C22SEM, C22 SEM
NOAA PaST Thesaurus term
C22 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2277)
C23n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C22H45COOH.
source: PaST
Known synonyms
C23FAMEconcentration, C23 concentration, C23 FAME Concentration, C23 n, C23C31
NOAA PaST Thesaurus term
C23 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3963)
C24n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C23H47COOH.
source: PaST
Known synonyms
nC24, C24 n, C24FAMEconcentration, C24 FAME Concentration, C24concentration, C24n, C24SEM, C24 concentration, C24 SEM, n C24
NOAA PaST Thesaurus term
C24 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2278)
C25_2n-alkanoicAcid
Definition
TBD
source: TBD
Known synonyms
C25:2 concentration
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
C25n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C24H49COOH.
source: PaST
Known synonyms
C25FAMEconcentration, C25 concentration, C25 FAME Concentration, C25 n
NOAA PaST Thesaurus term
C25 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3964)
C26n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C25H51COOH.
source: PaST
Known synonyms
nC26, C26 n, C26FAMEconcentration, C26 FAME Concentration, C26concentration, C26n, C26OH0x2F0x28C26OH0x2BC290x29, C26SEM, C26 concentration, C26 SEM, n C26
NOAA PaST Thesaurus term
C26 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2279)
C27n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C26H53COOH.
source: PaST
Known synonyms
C27FAMEconcentration, C27 concentration, C27 FAME Concentration, C27 n
NOAA PaST Thesaurus term
C27 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3968)
C28n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C27H55COOH.
source: PaST
Known synonyms
nC28, C28 n, C28FAMEconcentration, n-C28, n C28, C28 FAME Concentration, C28concentration, C28n, C28SEM, nC28_err, nC28_rep, C28 concentration, C28 SEM
NOAA PaST Thesaurus term
C28 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2280)
C29n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C28H57COOH.
source: PaST
Known synonyms
C29FAMEconcentration, C29 concentration, C29 FAME Concentration, C29 n
NOAA PaST Thesaurus term
C29 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3965)
C30n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C29H59COOH.
source: PaST
Known synonyms
C30 n, C30FAMEconcentration, C30 FAME Concentration, C30concentration, C30n, C30SEM, nC30_rep, C30 concentration, C30 SEM
NOAA PaST Thesaurus term
C30 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2281)
C31n-alkanoicAcid
Definition
a n-alkanoic acid with the formula C30H61COOH.
source: PaST
Known synonyms
C31FAMEconcentration, C31 concentration, C32FAMEconcentration
NOAA PaST Thesaurus term
C31 n-alkanoic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3966)
C37:2Alkenone
Definition
a C37 alkenone that is di-unsaturated.
source: PaST
Known synonyms
C37:2
NOAA PaST Thesaurus term
C37:2 alkenone (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4586)
C37:3aAlkenone
Definition
a C37 alkenone that is tri-unsaturated.
source: PaST
Known synonyms
C37:3a
NOAA PaST Thesaurus term
C37:3 alkenone (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4587)
C37:3bAlkenone
Definition
a C37 alkenone that is tri-unsaturated.
source: PaST
Known synonyms
C37:3b
NOAA PaST Thesaurus term
C37:3 alkenone (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4587)
C37:4Alkenone
Definition
a C37 alkenone that is tetra-unsaturated.
source: PaST
Known synonyms
C370x3A4, C34:4
NOAA PaST Thesaurus term
C37:4 alkenone (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4588)
C37Alkenone
Definition
an alkenone that contains 37 carbon atoms.
source: PaST
Known synonyms
C37.concentration, totalC37
NOAA PaST Thesaurus term
C37 alkenone (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4585)
Ca
Definition
a chemical element with atomic number 20.
source: PaST
Known synonyms
CaProp, % Ca-detr, % Ca-ex, Ca peak area, Ca__, Ca peak area
Ca/K
Definition
the elemental ratio of calcium to potassium.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
calcium/potassium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3783)
Ca/Sr
Definition
the elemental ratio of calcium to strontium.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
calcium/strontium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3684)
Ca/Ti
Definition
the elemental ratio of calcium to titanium.
source: PaST
Known synonyms
Ti/Ca, Ca/Ti-z
NOAA PaST Thesaurus term
calcium/titanium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1635)
CaCO3
Definition
a carbonate with the chemical formula CaCO3 but of unspecified crystal structure.
source: PaST
Known synonyms
% CaCO3-ex, CaCO3-IC
NOAA PaST Thesaurus term
calcium carbonate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=980)
calcificationRate
Definition
a formation rate that is a rate of skeletal growth in calcifying organisms, often expressed as a mass times unit area per time (e.g., g cm2/yr)
source: PaST
Known synonyms
calcification
NOAA PaST Thesaurus term
calcification rate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=756)
calcite
Definition
a calcium carbonate with rhombohedral crystal structure.
source: PaST
Known synonyms
Calcite
CaO
Definition
an inorganic compound that has the chemical formula CaO.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
calcium oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1661)
carbon
Definition
a chemical element with atomic number 6.
source: PaST
Known synonyms
C, % TC, % Total C, %_tc, x_C
carbonate
Definition
an identified mineral characterized by a fundamental anionic structure of CO3(2-) (Credit: Dictionary of Geological Terms).
source: PaST
Known synonyms
% Carbonate
NOAA PaST Thesaurus term
carbonate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=692)
CBT
Definition
an organic compound index that is calculated from the ratio of branched tetraethers with one cyclopentane moiety to those with none and that is correlated to soil pH.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
cyclization index of branched tetraethers (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1678)
CCA1
Definition
a statistical variable that is calculated using eigenvector-based methods to combine multiple data variables for data compression and dimensionality reduction.
source: PaST
Known synonyms
caaxis1
NOAA PaST Thesaurus term
multivariate eigenvector-based variable (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4060)
CCA2
Definition
a statistical variable that is calculated using eigenvector-based methods to combine multiple data variables for data compression and dimensionality reduction.
source: PaST
Known synonyms
caaxis2
NOAA PaST Thesaurus term
multivariate eigenvector-based variable (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4060)
Cd
Definition
a chemical element with atomic number 48.
source: PaST
Known synonyms
Cd MAR (ug/cm2/ky), ppm Cd
Cd/Mn
Definition
TBD
source: TBD
Known synonyms
ppm Cd/% Mn
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
charcoal
Definition
a bulk biological material that consists of any black-colored plant-derived material that has had its chemical composition and structure altered as a result of heating in a fire, and retains recognizable anatomic structure of the plant material, even if only in a fragmentary form (Credit: Smol et al. 2001 Tracking Environmental Change Using Lake Sediments).
source: PaST
Known synonyms
chacoal_influx
NOAA PaST Thesaurus term
charcoal (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=630)
chloride
Definition
chlorine that has acquired a negative one charge as the result of gaining an electron.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
chloride (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=852)
circulationIndex
Definition
a circulation variable that describes or quantifies a climate pattern with identifiable characteristics, specific regional effects, and often oscillatory behavior (Credit: Wikipedia).
source: PaST
Known synonyms
GoE, GoF
NOAA PaST Thesaurus term
circulation index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2270)
Cl
Definition
a chemical element with atomic number 17.
source: PaST
Known synonyms
Cl_
NOAA PaST Thesaurus term
chlorine (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=850)
clay
Definition
the abundance or concentration of particles with a diameter less than 0.004 millimeters.
source: PaST
Known synonyms
%_clay, Clay, x_Clay
cluster
Definition
a variable that is derived through the analysis of numerical data.
source: PaST
Known synonyms
cluster2
NOAA PaST Thesaurus term
statistical variable (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1101)
composite
Definition
a statistical variable that results from compositing multiple, usually normalized, proxy time series.
source: PaST
Known synonyms
hybrid, Hybrid
NOAA PaST Thesaurus term
proxy composite (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3909)
concentration
Definition
a unit which represents a standard measurement of how much of a given substance there is mixed with another substance (Credit: Units of measurement ontology).
source: PaST
Known synonyms
Concentration (C25-35), Friedel-3-ene concentration, Hop-17(21)-ene concentration
NOAA PaST Thesaurus term
concentration unit (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3908)
core
Definition
TBD
source: TBD
Known synonyms
CoreName, Core ID, core name, DUNE_A, Core Name, Core Section, Core_number, CoreSect1H, originalCoreName, Stal.ID, Core name, Core
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
correction
Definition
a data transformation that involves correcting one or more values in a time series for known, often non-climatic, factors. These factors include, for example, changes in ice volume through time, the Suess effect, and biological offsets.
source: PaST
Known synonyms
hasAragoniteCorrection, hasAragoniteCorrectionComposite, Iso adjustment for ocean calibration, Years for ocean correction
NOAA PaST Thesaurus term
corrected (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=675)
correlationCoefficient
Definition
a goodness-of-fit measure that quantifies the strength and direction of the linear relationship between two variables and that is defined as the (sample) covariance of the variables divided by the product of their (sample) standard deviations.
source: PaST
Known synonyms
corrs
NOAA PaST Thesaurus term
correlation coefficient (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3427)
count
Definition
a dimensionless unit that denotes a simple count of things (Credit: Units of measurement ontology).
source: PaST
Known synonyms
abundance, Numbe_counted, number, Number_counted, numInZone, Slide count, Varve_number, count_analyses_B3, count_analyses_C2, count_analyses_C3, count_analyses_C5, count_analyses_C6, sampleDensity, total, Total_grains_counted, total_non_Chaetoceros_counted, total_xount, TotalAmmoniaBeccarii
CPI
Definition
an organic compound index that is based on n-alkanes to quantify preservation/degradation patterns in sediments and/or source material of organic matter.
source: PaST
Known synonyms
CarbonPreferenceIndex20to30, CarbonPreferenceIndex20to32, CPI (27-33), CPI_25-33, CPI22-30
NOAA PaST Thesaurus term
carbon preference index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2125)
Cr
Definition
a chemical element with atomic number 24.
source: PaST
Known synonyms
ppm Cr
NOAA PaST Thesaurus term
chromium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=854)
d13C
Definition
the ratio of two isotopes of carbon, 13C/12C, in a sample compared to that of a standard, typically the Pee Dee Belemnite, as in: ((13C/12C sample)/(13C/12C standard) - 1) x 1000.
source: PaST
Known synonyms
d13CComposite, d13CPrecisionComposite, d13CStandardComposite, d13c_pachyderma, planktic.d13C, d13c_bulloides, d13c_sacculifer, d13c_ruber_pink, C29 δ13C, d13c_ruber, C31 δ13C, D13C, d13CPisid, C33 δ13C, d13C bulk calcite, d13C C18 FAME, d13C C18 FAME SEM, d13C C20 FAME, d13C C20 FAME SEM, d13C C21 alkane, d13C C21 alkane SEM, d13C C22 FAME, d13C C22 FAME SEM, d13C C23 alkane, d13C C23 alkane SEM, d13C C24 FAME, d13C C24 FAME SEM, d13C C25 alkane, d13C C25 alkane SEM, d13C C26 FAME, d13C C26 FAME SEM, d13C C27 alkane, d13C C27 alkane SEM, d13C C28 FAME, d13C C28 FAME SEM, d13C C29 alkane, d13C C29 alkane SEM, d13C C30 FAME, d13C C30 FAME SEM, d13C C31 alkane, d13C C31 alkane SEM, d13C C32 FAME, d13C C32 FAME SEM, d13C C33 alkane, d13C C33 alkane SEM, d13C C34 FAME, d13C C34 FAME SEM, d13C C35 alkane, d13C C35 alkane SEM, d13C carbonate, d13C organic, d13C ostracod, d13C_C31, d13c_dutertrei, d13C_org, d13c_pachyderma_d, d13Ccarb, d13CleafwaxC27, d13CleafwaxC27err, d13CleafwaxC29, d13CleafwaxC29err, d13CleafwaxC31, d13CleafwaxC31err, d13CleafwaxC33, d13CleafwaxC33err, d13CMean, Friedel-3-ene d13C, Hop-17(21)-ene d13C, Bulk OM d13C, C21 d13C, C23 d13C, C25:2 d13C, C28 d13C vs. VPDB, C29 d13C, C31 d13C, CDR3_d13C, d13/12C, Taraxer-14-ene d13C, δ13C n-alkanes, δ13C n-alkanes std dev, d13C bulk, d13C C25, d13C C27, d13C C29, d13C C31, d13C VPDB, D13C_C28, D13C_FAME, d13Cwax, C13bulk, C25 d13C, C27 d13C, C31d13C_PDB
NOAA PaST Thesaurus term
delta 13C (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=320)
d15N
Definition
the ratio of two isotopes of nitrogen, 15N/14N, in a sample compared to that of a standard, typically modern air ratios, as in: ((15N/14N sample)/(15N/14N standard) - 1) x 1000.
source: PaST
Known synonyms
d15N/14N, dN15, dN15_corrected, Bulk OM d15N
NOAA PaST Thesaurus term
delta 15N (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=322)
d18O
Definition
the ratio of two isotopes of oxygen, 18O/16O, in a sample compared to that of a standard, typically either Pee Dee Belemnite or standard mean ocean water, as in: ((18O/16O sample)/(18O/16O standard) - 1) x 1000.
source: PaST
Known synonyms
d18o_ruber, d18o_pachyderma, d18OComposite, planktic.d18O, d18o_bulloides, d18o_sacculifer, d18O_sw, d18O_annual, D18O, d18o_ruber_pink, d18o_dutertrei, d18o_pachyderma_d, d18O_sw_annual, d18o_inflata, d18O_PDB, d18o_obliquiloculata, d18O_SMOW, d18O_swcorr, d18Ocarb, d18OPisid, d18Osw-sl-g.rubw, bagd18O, d180_corrc, d18O encrustation, d18O Avg, d18O bulk calcite, d18O carbonate, d18O carbonate corrected for dolomite, d18O Chironomid, d18O ostracod, d18O pore ice sw corr, d18O_210yr, d18o_acicula, d18o_crassaformis, d18O_Gb, d18o_mabahethi, d18o_marginata, d18o_menardii, d18o_peregrina, d18o_quinqueloba, d18o_ruber_lato, d18o_ruber_stricto, d18o_tumida, d18O_vPDB, d18OBsi, d18Odiatom, d18Og.rub, d18Omean, d18Osw-g.rub, d18OTerrestrialGastropods, d18Otr, d18Otr-, d18Otr+, G. ruber w δ18O [‰ PDB], Gbulloidesd18O, CDR3_d18O, dd18O5pt, Ndutertreid18O, nonReliabled18O, ruberD18, WR11_d18O, x18O, x18ORub_, δ18O, Chironomid d18O, d18O (Sea Level Corrected), d18O VPDB, d18O_Grass_leaf, d18O_Sphagnum, d18O_vp–sp, d18O chironomid, d18O Lake water, d18O pore ice, d18Osw
NOAA PaST Thesaurus term
delta 18O (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=323)
d2H
Definition
the ratio of two isotopes of hydrogen, 2H/1H, in a sample compared to that of a standard, typically standard mean ocean water, as in: ((2H/1H sample)/(2H/1H standard) - 1) x 1000.
source: PaST
Known synonyms
dD, C29 δD, dDwax_iv, C31 δD, dDP, d2H C29, C26 d2H, C30 d2H, d2H C27, dD_C31, dD_swcorr, bagdD, C22 d2H, C24 d2H, C25 d2H, C28 d2H, C28_dD, C29 dD, d2H C20, d2H C23, dDC29, dDC31, d2H avg, d2H C20 FAME, d2H C20 FAME SEM, d2H C21 alkane, d2H C21 alkane SEM, d2H C22 FAME, d2H C22 FAME SEM, d2H C23 alkane, d2H C23 alkane SEM, d2H C24 FAME, d2H C24 FAME SEM, d2H C25, d2H C25 alkane, d2H C25 alkane SEM, d2H C25 error, d2H C26 FAME, d2H C26 FAME SEM, d2H C27 alkane, d2H C27 alkane SEM, d2H C27 error, d2H C28 FAME, d2H C28 FAME SEM, d2H C29 alkane, d2H C29 alkane SEM, d2H C29 error, d2H C30 FAME, d2H C30 FAME SEM, d2H C31, d2H C31 alkane, d2H C31 alkane SEM, d2H C31 error, d2H C32 FAME, d2H C32 FAME SEM, d2H C33 alkane, d2H C33 alkane SEM, d2H pore ice, d2H pore ice sw corr, d2H_C16, d2H_C26, d2H_C28, d2H_C30, d2HC30, d2HleafwaxC29, d2HleafwaxC29err, d2HleafwaxC31, d2HleafwaxC31err, d2HleafwaxC33, d2HleafwaxC33err, d2Hsw, dD IV, dD_C31_sd, dD_IVandbio, dD_IVonly, dDwax, dDwax Corrected, dDwax_corr, Friedel-3-ene d2H, Hop-17(21)-ene d2H, C20 d2H, C20 d2H SEM, C21 d2H, C22 d2H SEM, C23 δD, C25 δD, C26 d2H SEM, C27 d2H, C28 d2H SEM, C28_dDIV, C29 d2H, C29 δD Corrected, C29 δD ice volume adjusted, C29 δD ice volume and vegetation adjusted, C29-C31 δD, C30 d2H SEM, C30 dD, C30 dD IV corrected (3°C), C30 dD IV corrected (7°C), C31 d2H, C31dD, C31dDsd, C32 dD, C33 δD, nC28_dD, nC30_dD, Taraxer-14-ene d2H, δDaq, δDterr, C31 dD, d2H C22, d2H C25:2, d2H C30, d2H precip, dD_C29, Long chain n-acid avg d2H, Long Chain n-alkane avg d2H, Mid-chain n-acid avg d2H, Midchain n-alkane avg d2H, d2HC24, d2HC26, d2HC28, d2HC29, C20d2H, C22d2H, C23 d2H, C24d2H, C25:2 d2H, C26d2H, C28d2H, C30d2H, Dd, Precip d2H
NOAA PaST Thesaurus term
delta 2H (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=324)
d2HUncertaintyHigh80
Definition
TBD
source: TBD
Known synonyms
Precip dD 90 CI
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
d2HUncertaintyLow80
Definition
TBD
source: TBD
Known synonyms
Precip dD 10 CI
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Dd2H
Definition
TBD
source: TBD
Known synonyms
ΔδDterr-aq
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
deleteMe
Definition
TBD
source: TBD
Known synonyms
average C26 C28, CAL, A, Calibrated, IMON1953/3, interval, SAUG/3, SETE/3, SFEV/3, SHIV/3, TETE/3, TFEV/3, THIV/3, hobdob, LazerProfiler, noID, RCS.ars, UnkownColumn
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
deltaRelativeHumidity
Definition
TBD
source: TBD
Known synonyms
∆RH_mid
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
deltaTemperature
Definition
TBD
source: TBD
Known synonyms
deltaT
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
density
Definition
a physical property that quantifies the compactness of a substance.
source: PaST
Known synonyms
Density
depth
Definition
the location of the midpoint of a sample measured as a distance from some datum, usually the core top.
source: PaST
Known synonyms
depthComposite, Depth, depth_merged, depthice, depthwe, MidpointDepth, Depth blf, depthComp, Composite depth, compositeDepth, Composite Depth, Section depth, depth corrected, depth_cmbs, depth_core1, depth_corr_cm, depth_merge, Composite Depth in Core, Composite depth mid, Composite_depth, cor_depth_cm, depthByCore, DrillHole Depth, mean depth, originalCoreDepth, Section Depth, Core depth, depth_core, Adjusted Depth, drive-depth
depthBottom
Definition
the location of the oldest end of a sample measured as a distance from some datum, usually the core top.
source: PaST
Known synonyms
depth.bottom, depth_bot, bottomDepth, depth_bottom, bot, Bot, Bottom Depth, Composite depth bottom, Section depth bottom, uncorrected_depth_bot, bottom depth in section, Bottom_depth
NOAA PaST Thesaurus term
depth at sample start (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1291)
depthTop
Definition
an organooxygen compound with the chemical formula C2H3O2.
source: PaST
Known synonyms
depth.top, depth_top_m, depth_top, Composite depth top, Section depth top, top, Top, Top Depth, topDepth, uncorrected_depth_top, top depth in section, Top_depth, logdepthtop, logdepthtop-EDC99, logdepttop
NOAA PaST Thesaurus term
acetic acid (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1224)
deuteriumExcess
Definition
a measure of how different a delta 2H value is from the value expected from the Global Meteoric Water Line, that is delta 2H - 8* delta 18O.
source: PaST
Known synonyms
d-excess, bagDexcess, d-excess_swcorr, deutEx, dxs, d-excess pore ice, d-excess pore ice sw corr, d-excess sw
NOAA PaST Thesaurus term
deuterium excess (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1426)
diatom
Definition
an identifiable organism that is a unicellular phytoplankton and that belongs to the kingdom Chromista, phylum Ochrophyta, class Bacillariophyceae.
source: PaST
Known synonyms
%Benthic, %fresh, %Indif., %Saline, %benth.dia, %plank.dia, %saline.dia, SumDiatoms
diatomCount
Definition
a measurement of diatoms, such as a ratio or count, that is derived from a series of observations and that is used as an indicator or measure.
source: PaST
Known synonyms
seaIceDiatoms, diatom_abundance, Diatoms_per_traverse
NOAA PaST Thesaurus term
diatom index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3772)
dinocyst
Definition
the total count of dinocysts in a sample.
source: PaST
Known synonyms
flux_dino
NOAA PaST Thesaurus term
total dinocysts (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3259)
dolomite
Definition
a carbonate with the formula CaMg(CO3)2.
source: PaST
Known synonyms
% Dolomite
NOAA PaST Thesaurus term
dolomite (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=990)
dryBulkDensity
Definition
TBD
source: TBD
Known synonyms
DBD, Dry Bulk Density, dbd, dry_bd, EstDryBD
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
duration
Definition
a time unit that measures the duration of a period of time.
source: PaST
Known synonyms
yearsPerSample
NOAA PaST Thesaurus term
duration unit (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=278)
dust
Definition
a bulk geological material that consists of organic or inorganic particles of typically clay and silt size that are transportable by wind.
source: PaST
Known synonyms
DMAR, dustFlux, 0.50_quantile_dust_flux
DWHI
Definition
a measurement of ecosystem quantities or properties, such as a ratio or count, that is derived from a series of observations and that is used as an indicator or measure.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
ecosystem index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4940)
effectivePrecipitation
Definition
the hydroclimate rate that is the difference in rate between precipitation and evaporation at the earth’s surface.
source: PaST
Known synonyms
effectiveMoisture, Moisture_index, waterBalance
NOAA PaST Thesaurus term
precipitation minus evaporation (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2312)
elevation
Definition
sampling metadata that identifies the elevation, either above or below sea level, at which a sample was collected or a reconstruction was generated.
source: PaST
Known synonyms
elevation sample, elevation a.s.l.
NOAA PaST Thesaurus term
collection elevation (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=537)
ElNinoEvent
Definition
an index of the El Niño Southern Oscillation that quantifies the occurrence of anomalously warm sea surface temperatures in the eastern tropical Pacific.
source: PaST
Known synonyms
ENSO_events
NOAA PaST Thesaurus term
El Niño event (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2301)
EPS
Definition
an extension of the correlation coefficient that quantifies how well a chronology based on a finite number of samples represents the hypothetical perfect or true chronology and that is calculated as: (nRBAR)/(nRBAR + 1-RBAR) where n is the number of samples and RBAR is the mean intersample correlation coefficient.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
expressed population signal (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2359)
epsilonC28C22
Definition
TBD
source: TBD
Known synonyms
Epsilon C28-C22, Epsilon28-22
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
epsilonC28C24
Definition
TBD
source: TBD
Known synonyms
Epsilon C28-C24
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
epsilonC29C23
Definition
TBD
source: TBD
Known synonyms
Epsilon C29-C23
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
equilibriumLineAltitude
Definition
a cryospheric quantity that is the elevation at which the mass balance of an ice sheet or glacier is zero over the year, that is where ablation equals accumulation.
source: PaST
Known synonyms
ELA, ELA_alt
NOAA PaST Thesaurus term
equilibrium line altitude (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2303)
Eu/Zr
Definition
TBD
source: TBD
Known synonyms
Eu/Zr-z
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
event
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
eventLayer
Definition
a formation property that describes or quantifies layers within a sample that formed due to unusual environmental or climatic events.
source: PaST
Known synonyms
layer, layer_type
NOAA PaST Thesaurus term
event layer (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2233)
facies
Definition
TBD
source: TBD
Known synonyms
lithology, Facies, lithologic unit
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Fe
Definition
a chemical element with atomic number 26.
source: PaST
Known synonyms
Fe peak area, FeProp
Fe/Al
Definition
the elemental ratio of iron to aluminum.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
iron/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2416)
Fe/Ca
Definition
the elemental ratio of iron to calcium.
source: PaST
Known synonyms
ln(Fe/Ca)
NOAA PaST Thesaurus term
iron/calcium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1637)
Fe/K
Definition
the elemental ratio of iron to potassium.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
iron/potassium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3785)
Fe/Mn
Definition
the elemental ratio of iron to manganese.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
iron/manganese (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1638)
Fe2O3
Definition
an inorganic compound that has the chemical formula Fe2O3.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
iron(III) oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1663)
feldspar
Definition
a silicate mineral with the general formula XAl(Al,Si)3O8 where X can be K, Na, Ca, Ba, Rb, Sr, or Fe.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
feldspar group (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=992)
flood
Definition
TBD
source: TBD
Known synonyms
M-flood, M-flood 200 yr avg, M-flood 30 yr sum, P-flood, P-flood 200 yr avg, P-flood 30 yr sum, floods
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
fluorine
Definition
a chemical element with atomic number 9.
source: PaST
Known synonyms
F_, F
NOAA PaST Thesaurus term
fluorine (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=870)
foraminifera
Definition
an identifiable organism that belongs to the kingdom Protozoa, order Foraminiferida.
source: PaST
Known synonyms
Foram
NOAA PaST Thesaurus term
foraminifer (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1778)
gamma
Definition
an electromagnetic property that measures the emission of gamma radiation by a material.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
gamma radiation (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1619)
GDGT
Definition
an organooxygen compound that is a tetraether membrane lipid and that contains between 0 and 4 cyclopentane moieties, with an increasing number of cyclopentane moieties related to the temperature of formation.
source: PaST
Known synonyms
brGDGT
NOAA PaST Thesaurus term
glycerol dialkyl glycerol tetraether (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1103)
GDGT-0/Cren
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
glacierCoverage
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
globigerinoidesRuber
Definition
a particular species of the genus Globigerinoides.
source: PaST
Known synonyms
Gruber
NOAA PaST Thesaurus term
Globigerinoides ruber (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2621)
grainSize
Definition
the diameter of individual grains of a material such as sediment, dust, or ice.
source: PaST
Known synonyms
<4 um, >63 um, GrainSizeMode, D50, <2 um, <2um, Grain size mean, <16 μm, 250-31 um, 63-4 um
NOAA PaST Thesaurus term
grain size (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1233)
grayscale
Definition
reflectance that is quantified only according to intensity, or the amount of light, with low values indicating black and high values indicating white.
source: PaST
Known synonyms
grayscale20lp_detrended, grey_scale
NOAA PaST Thesaurus term
grayscale (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=548)
growing degree days
Definition
a temperature index that integrates warmth above a base temperature (usually 10 degrees Celsius) through time.
source: PaST
Known synonyms
GDD5
NOAA PaST Thesaurus term
growing degree days (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1386)
growthRate
Definition
a formation rate that is the rate of linear growth of a deposit (e.g., speleothem, mollusk shell), sometimes calculated from the width of an annual growth band.
source: PaST
Known synonyms
GrowthRate
NOAA PaST Thesaurus term
growth rate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=547)
hasGap
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
hasHiatus
Definition
Is there a hiatus at this level
source: LinkedEarth
Known synonyms
hasHiatusComposite
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
hole
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
humidificationIndex
Definition
a measure of the extent to which a peat sample has undergone decomposition and humic acids have been produced.
source: PaST
Known synonyms
HumidificationIndex, HIndex, Hindex
NOAA PaST Thesaurus term
humification index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2129)
iceMelt
Definition
the ice mass loss from a glacier, ice-cap, ice-sheet, or ice-shelf through phase transformation to liquid water.
source: PaST
Known synonyms
melt, ice_melt_fraction, meltLayerFrequency, meltLayers
NOAA PaST Thesaurus term
ice melt (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4951)
iceRaftedDebris
Definition
mineral matter that was transported over a body of water on ice.
source: PaST
Known synonyms
IRD
NOAA PaST Thesaurus term
ice rafted debris (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1544)
inc/coh
Definition
a ratio of scattering in x-ray fluorescence analysis, that can be used as a proxy for the amount of organic matter in a sample.
source: PaST
Known synonyms
Inc/Coh
NOAA PaST Thesaurus term
incoherent:coherent scattering (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3720)
RAN15
Definition
a measurement of specific organic compounds, such as a ratio or count, that is derived from a series of observations and that is used as an indicator or measure of environmental conditions.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
organic compound index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3954)
index
Definition
a variable that is derived through the analysis of numerical data.
source: PaST
Known synonyms
PLS-1, PLS-2, SM/IlliteChlorite
NOAA PaST Thesaurus term
statistical variable (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1101)
IP25
Definition
a highly-branched isoprenoid alkene that contains 25 carbon atoms and that is produced selectively by sea ice diatoms (Credit: Belt et al. 2013, 10.1016/j.quascirev.2012.12.001).
source: PaST
Known synonyms
IP25_flux
NOAA PaST Thesaurus term
ice proxy with 25 carbon atoms (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2493)
IRM
Definition
the remanent magnetization that is acquired without the aid of changes in temperature, generally from the application and subsequent removal of an applied direct current field (Credit: Encyclopedia of Geomagnetism and Paleomagnetism).
source: PaST
Known synonyms
irm, IRM_softFlux
NOAA PaST Thesaurus term
isothermal remanent magnetization (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1085)
isReliable
Definition
TBD
source: TBD
Known synonyms
ReliabIeYN1, reliable, ReliabIeYN2, reliable 1, reliable 2, reliable_1, reliable_2, reliable_3, reliable_4, Reliable?
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
ITCZ
Definition
a circulation index that measures some aspect of the belt of low pressure where trade winds converge, such as its latitudinal position.
source: PaST
Known synonyms
ITCZ_index
NOAA PaST Thesaurus term
Intertropical Convergence Zone index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1000118)
JulianDay
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
K/Al
Definition
the elemental ratio of potassium to aluminum.
source: PaST
Known synonyms
ln(K/Al)
NOAA PaST Thesaurus term
potassium/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2422)
K2O
Definition
an inorganic compound that has the chemical formula K2O.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
potassium oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1666)
K37
Definition
TBD
source: TBD
Known synonyms
K37s
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
La
Definition
a chemical element with atomic number 57.
source: PaST
Known synonyms
ppm La
NOAA PaST Thesaurus term
lanthanum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=286)
lakeArea
Definition
a geographic variable that quantifies the surface area of one or multiple lakes.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
lake area (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4050)
lakeLevel
Definition
a geographic variable that quantifies the height of the lake water surface relative to some datum.
source: PaST
Known synonyms
depth.lake, lakeStatus, lakeLevelRelative, LakeDepth, LakeLevel_cm_, Lake Level, Lake Level a.s.l.
NOAA PaST Thesaurus term
lake level (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2137)
lakeTrend
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
lakeVolume
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
landscapeCover
Definition
an ecosystem variable that quantifies some aspect of the components of an ecosystem.
source: PaST
Known synonyms
OpenVegetation___
NOAA PaST Thesaurus term
ecosystem quantity (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4934)
latitude
Definition
sampling metadata that identifies the latitude at which a sample was collected or a reconstruction was generated.
source: PaST
Known synonyms
latitude sample
NOAA PaST Thesaurus term
latitude (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=453)
layerThickness
Definition
a measure of raw, or true, ice layer thickness, i.e. uncorrected for compaction and flow.
source: PaST
Known synonyms
eventLayerThick, Fld lay thick, Flood lay (annual), Flood lay (fall), Flood lay (spring), Flood lay (summer), Flood lay (winter), floodLayThick, debrisLayThick, Lamina_thickness, LaminaThickenss
NOAA PaST Thesaurus term
layer thickness (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=603)
LDI
Definition
an organic compound index calculated based on the relative abundance of long chain alkyl 1,13- and 1,15-diols.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
long-chain diol index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=5705)
lithics
Definition
the diameter of individual grains of a material such as sediment, dust, or ice.
source: PaST
Known synonyms
%_lithics, Lithic Flux, Lithics
NOAA PaST Thesaurus term
grain size (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1233)
LOI
Definition
pyrolysis that involves strongly heating (‘igniting’) a sample of material at a specified temperature, allowing volatile substances to escape, until its mass ceases to change. This may be done in air, or in some other reactive or inert atmosphere (Credit: Wikipedia).
source: PaST
Known synonyms
NOAA PaST Thesaurus term
loss on ignition (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=703)
longitude
Definition
sampling metadata that describes the longitude at which a sample was collected or a reconstruction was generated.
source: PaST
Known synonyms
longitude sample
NOAA PaST Thesaurus term
longitude (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=454)
MAR
Definition
a rate unit that is a standard measure of the accumulation or flow of mass per unit area per time.
source: PaST
Known synonyms
Bulk MAR, bulkMAR, CordMAR, Mo MAR (ug/cm2/ky), massacum
NOAA PaST Thesaurus term
mass per area per time unit (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4704)
material
Definition
a material that is used in a statistically-based climate reconstruction.
source: PaST
Known synonyms
Material
NOAA PaST Thesaurus term
reconstruction material (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4857)
MBT
Definition
an organic compound index that is calculated as the ratio of various branched tetraethers and that reflects temperature and/or soil pH.
source: PaST
Known synonyms
MBT’, MBT’5Me
NOAA PaST Thesaurus term
methylation index of branched tetraethers (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1683)
Mg
Definition
a chemical element with atomic number 12.
source: PaST
Known synonyms
% Mg, %Mg, detrendMg, Mg__, MgDetrended
NOAA PaST Thesaurus term
magnesium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=891)
Mg/Ca
Definition
the elemental ratio of magnesium to calcium.
source: PaST
Known synonyms
mgca_pachyderma, mgca_bulloides, mgca_dutertrei, mgca_sacculifer, mgca_inflata, mgca_ruber_lato, mgca_ruber_pink, mgca_ruber_stricto, mgca_crassaformis, mgca_obliquiloculata, mgca_pachyderma_d, CDR3_MgCa, Mg/Ca Raw, MgCa, mgca_truncatulinoides, NdutertreiMg/Ca, mgca_ruber, Mg_Ca, planktic.MgCa
NOAA PaST Thesaurus term
magnesium/calcium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4392)
MgO
Definition
an inorganic compound that has the chemical formula MgO.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
magnesium oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=307)
mineralogy
Definition
a geological material that has been identified based on composition and crystal structure as a specific mineral or as belonging to a certain mineral class.
source: PaST
Known synonyms
mineral_flux, mineralogyComposite
NOAA PaST Thesaurus term
identified mineral (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1001)
Mn
Definition
a chemical element with atomic number 25.
source: PaST
Known synonyms
ppm Mn, % Mn
NOAA PaST Thesaurus term
manganese (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=287)
Mn/Fe
Definition
the elemental ratio of manganese to iron.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
manganese/iron (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1013)
Mn/Mo
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
MnO
Definition
an inorganic compound that is any of the oxides of manganese, containing oxygen and manganese atoms.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
manganese oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1668)
Mo
Definition
a chemical element with atomic number 42.
source: PaST
Known synonyms
Mo_xs, ppm Mo
NOAA PaST Thesaurus term
molybdenum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=897)
MS
Definition
a magnetic moment that is the degree to which a material can be magnetized in an external magnetic field.
source: PaST
Known synonyms
Avg_MS, AVG_MS_DRS1_2A_3_2B_4, MassMagSus, SI, Magnetic Susceptibility
NOAA PaST Thesaurus term
magnetic susceptibility (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1793)
MXD
Definition
the density of xylem cells in wood that formed near the end of the growing season and that tend to be small and thick-walled.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
latewood density (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1573)
N/C
Definition
TBD
source: TBD
Known synonyms
NC
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Na2O
Definition
an inorganic compound that has the chemical formula Na2O.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
sodium oxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1670)
needsToBeSplitIntoMultipleColumns
Definition
TBD
source: TBD
Known synonyms
depth-range, depthRange, depth_range
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST
nitrate
Definition
an inorganic compound that has the chemical formula NO3(-).
source: PaST
Known synonyms
nitrogen
Definition
a chemical element with atomic number 7.
source: PaST
Known synonyms
N
NOAA PaST Thesaurus term
nitrogen (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1014)
NO3
Definition
an inorganic compound that has the chemical formula NO3(-).
source: PaST
Known synonyms
NO3_
notes
Definition
sampling metadata that describes study-specific aspects of sample collection and/or analysis.
source: PaST
Known synonyms
entityName, Commentregardingreliability1, CommentRegardingReliability, Commentregardingreliability2, BSi_regime, BSI_regime, CodeName, color, Commentregardingreliability3, Commentregardingreliability4, note, repeats, Reworked, notes_C5
organicCarbon
Definition
carbon that is derived from an organic source.
source: PaST
Known synonyms
C_organic_flux, Corg dens, Acc Rate TOC
NOAA PaST Thesaurus term
organic carbon (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=995)
organicMatter
Definition
a bulk biological material that consists of complex substances of mainly carbon, hydrogen, and oxygen with subordinate amounts of nitrogen, sulfur, and other elements, produced by the growth of organisms (Credit: Smol et al. 2001 Tracking Environmental Change Using Lake Sediments).
source: PaST
Known synonyms
OM, organic, %_tom, OM dens
NOAA PaST Thesaurus term
organic matter (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1551)
organicNitrogen
Definition
TBD
source: TBD
Known synonyms
Norg
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Paq
Definition
an organic compound index that measures the relative predominance of submerged versus emergent aquatic plants and that is generally calculated from n-alkanes as (C23 + C25)/(C23 + C25 + C29 + C31).
source: PaST
Known synonyms
NOAA PaST Thesaurus term
P-aqueous (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1000103)
PC1
Definition
a multivariate eigenvector-based variable that is one of a set of linearly uncorrelated spatial patterns that are derived using an orthogonal transformation on a set of continuous data observations.
source: PaST
Known synonyms
droughtIndex (PC1), P1, PC1gs, PCA1
NOAA PaST Thesaurus term
empirical orthogonal function (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1368)
PC2
Definition
a multivariate eigenvector-based variable that is one of a set of linearly uncorrelated spatial patterns that are derived using an orthogonal transformation on a set of continuous data observations.
source: PaST
Known synonyms
PCA2
NOAA PaST Thesaurus term
empirical orthogonal function (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1368)
PC3
Definition
a multivariate eigenvector-based variable that is one of a set of linearly uncorrelated spatial patterns that are derived using an orthogonal transformation on a set of continuous data observations.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
empirical orthogonal function (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1368)
peat
Definition
a bulk biological material that consists of an unconsolidated combustible deposit of partially carbonized plant remains, common in bogs, fens, and lakes in tundra or periglacial regions (Credit: Smol et al. 2001 Tracking Environmental Change Using Lake Sediments).
source: PaST
Known synonyms
Peat, peatFlux
percent
Definition
an ecosystem variable that quantifies some aspect of the components of an ecosystem.
source: PaST
Known synonyms
WoodyCover___
NOAA PaST Thesaurus term
ecosystem quantity (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4934)
pH
Definition
a measure of acidity that is calculated as the negative logarithm of the hydrogen ion concentration.
source: PaST
Known synonyms
pHsoil, soilPH
phosphorus
Definition
a chemical element with atomic number 15.
source: PaST
Known synonyms
%P
NOAA PaST Thesaurus term
phosphorus (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1018)
Picea/Artemisia
Definition
TBD
source: TBD
Known synonyms
Picea/Artemesia
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Picea/Pinus
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Pinus/Artemisia
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Poaceae/Ephedra
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
potassium
Definition
a chemical element with atomic number 19.
source: PaST
Known synonyms
K_, K, KProp, %K, % K, K peak area
NOAA PaST Thesaurus term
potassium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=911)
precipitation
Definition
the hydroclimatic rate of rain, snow, sleet or hail that falls to the ground.
source: PaST
Known synonyms
Pannom, Panom, Precipitation, MAP, P, precip51yr, precip5yr, precipitation (with H-set), precipobs, Summer precipitation, Annual Precipitation, Summer Precipitation, Winter Precipitation, Precip
NOAA PaST Thesaurus term
precipitation (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=560)
productivity
Definition
an ecosystem process variable that quantifies the rate of generation of biomass in an ecosystem.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
productivity (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3293)
R570/R630
Definition
TBD
source: TBD
Known synonyms
R570_630
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
R650/R700
Definition
TBD
source: TBD
Known synonyms
R650_700
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
RABD660670
Definition
TBD
source: TBD
Known synonyms
R660_670, RABD660_670, RABD660;670 index
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Rb
Definition
a chemical element with atomic number 37.
source: PaST
Known synonyms
Rb peak area
NOAA PaST Thesaurus term
rubidium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=913)
Rb87/Sr86
Definition
the ratio of a radioactive isotope of rubidium with 50 neutrons and a stable isotope of strontium with 48 neutrons.
source: PaST
Known synonyms
Rb/Sr
NOAA PaST Thesaurus term
87Rb/86Sr (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2430)
RBAR
Definition
an extension of the correlation coefficent that measures the common variance between series in a tree ring chronology and that is calculated by taking the average of the correlations calculated between all series.
source: PaST
Known synonyms
RBar
NOAA PaST Thesaurus term
average correlation coefficient (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2358)
reflectance
Definition
an electromagnetic property that measures the amount of light that reflects from the surface of a material.
source: PaST
Known synonyms
blueIntensity, redness, Brightness, X_radiograph_dark_layer, red_color_intensity_units
NOAA PaST Thesaurus term
reflectance (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1005)
relativeHumidity
Definition
the hydroclimate ratio of water vapor present in air to the amount of water needed to achieve saturation at the local temperature.
source: PaST
Known synonyms
RH
NOAA PaST Thesaurus term
relative humidity (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2314)
residualChronology
Definition
a tree ring chronology method that uses Program ARSTAN, developed by Dr. Edward R. Cook at the Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York (Cook 1985), in its standard configuration but additionally using autoregressive modeling to remove autocorrelation.
source: PaST
Known synonyms
residual
NOAA PaST Thesaurus term
residual chronology method (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1592)
ringWidth
Definition
a physical measurement of the width of all or of some subcomponent of one annual ring from a tree.
source: PaST
Known synonyms
trsgi, TRW
NOAA PaST Thesaurus term
ring width (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3639)
salinity
Definition
a solution property that is the amount of salt dissolved in a body of water.
source: PaST
Known synonyms
SAUG, SETE, SFEV, SHIV, logSalinity, sss
NOAA PaST Thesaurus term
salinity (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4396)
sampleCount
Definition
a dimensionless unit that denotes a simple count of things (Credit: Units of measurement ontology).
source: PaST
Known synonyms
num_samples
sampleID
Definition
sampling metadata that designates either a widely-used or lab-specific name for a sample and which can contain such attributes as core, section, and/or site.
source: PaST
Known synonyms
Sample, sisalSampleID, sisalSampleIDComposite, OriginalSampleID, Sample ID, plotName, label, ID, Lab ID, sample_code, sampleNumber, DateID, Lab Code, sambleID, Sample interval, Sample label, sample_number, sampleIDa, sampleIDb, sampleIDc, samples, smapleID, sample # in section, Sample Label, sample
NOAA PaST Thesaurus term
sample identification (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1482)
sand
Definition
the abundance or concentration of particles with a diameter between 0.0625 and 2 millimeters.
source: PaST
Known synonyms
%_sand, x_Sand, Sand
Sc
Definition
a chemical element with atomic number 21.
source: PaST
Known synonyms
ppm Sc
NOAA PaST Thesaurus term
scandium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=915)
seaIce
Definition
a cryospheric quantity that is a measure of the extent to which the ocean surface is covered by sea ice.
source: PaST
Known synonyms
IMON1953, Sea_Ice_conc, Sea_Ice_months
NOAA PaST Thesaurus term
sea ice cover (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2317)
section
Definition
TBD
source: TBD
Known synonyms
core_section, Section, section name, Sec label, Section [#], Section #, Section number
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
sedimentationRate
Definition
a formation rate that is the amount of sediment deposited during a certain time span, normally expressed as a length per time (e.g., cm/yr).
source: PaST
Known synonyms
sedRate, sed rate, Mean Sedim rate, Sedim rate
NOAA PaST Thesaurus term
sedimentation rate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1007)
sedimentDry
Definition
sediment from which all water has been removed.
source: PaST
Known synonyms
clastic, clastic_flux, mass dry, mass dry >1mm, mass dry 106 to 1000 um, mass dry 63 to 106 um, massDry, massDry_1mm, dry sample mass, sedimentWeight
NOAA PaST Thesaurus term
dry sediment (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1502)
segmentLength
Definition
average segment length across multiple tree ring timeseries from a site
source: LinkedEarth
Known synonyms
segment
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
sequence
Definition
TBD
source: TBD
Known synonyms
Pollen Sequence
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Si
Definition
a chemical element with atomic number 14.
source: PaST
Known synonyms
SiProp, norm Silicon, Si peak area, silicon
NOAA PaST Thesaurus term
silicon (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1649)
Si/Al
Definition
the elemental ratio of silicon to aluminum.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
silicon/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3685)
Si/Ti
Definition
the elemental ratio of silicon to aluminum.
source: PaST
Known synonyms
norm Si/Ti
NOAA PaST Thesaurus term
silicon/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3685)
silt
Definition
the abundance or concentration of particles with a diameter between 0.004 and 0.0625 millimeters.
source: PaST
Known synonyms
Silt, %_silt, x_Silt
site
Definition
TBD
source: TBD
Known synonyms
LakeName, Site, CoreSite, siteName, SiteName, Drilling project, Region, site/hole
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
siteCount
Definition
TBD
source: TBD
Known synonyms
#ofSites
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
SO4
Definition
an inorganic compound that has the formula SO4(2-).
source: PaST
Known synonyms
SO4__
NOAA PaST Thesaurus term
sulfate (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1339)
solarIrradiance
Definition
a forcing variable that is the radiation from the sun integrated over the whole electromagnetic spectrum and over the entire solar disk. The quantity applies outside the atmosphere, by default at a distance of one astronomical unit from the sun.
source: PaST
Known synonyms
SunFrac
NOAA PaST Thesaurus term
solar irradiance (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4376)
Sr
Definition
a chemical element with atomic number 38.
source: PaST
Known synonyms
ppm Sr, SR, Sr (ppm), Sr peak area
NOAA PaST Thesaurus term
strontium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=290)
Sr/Ca
Definition
the elemental ratio of strontium to calcium.
source: PaST
Known synonyms
CDR3_SrCa, WR11_SrCa, SrCa, Sr_Ca, SrCa_annual
NOAA PaST Thesaurus term
strontium/calcium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3912)
SSS
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
streamflow
Definition
the hydroclimatic rate of flow of water in streams, rivers, and other channels.
source: PaST
Known synonyms
discharge, FebQ, AprQ, AugQ, DecQ, JanQ, JulyQ, JuneQ, MarchQ, MayQ, NovQ, OctQ, SeptQ
NOAA PaST Thesaurus term
streamflow (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1396)
sulfur
Definition
a chemical element with atomic number 16.
source: PaST
Known synonyms
S, Sulfur, Sulphur
TDS
Definition
a solution property that is the combined content of all inorganic and organic substances contained in a liquid in molecular, ionized or micro-granular (colloidal sol) suspended form (Credit: Wikipedia).
source: PaST
Known synonyms
NOAA PaST Thesaurus term
total dissolved solids (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3911)
temperature
Definition
an earth system variable that quantifies the degree or intensity of heat present in a material.
source: PaST
Known synonyms
t-source, temperatureComposite, nonReliabletemperature, Temperature, nonReliableTemperature, deep.temp, T anomaly, TETE, TFEV, THIV, JulTanom, JulTanomLoess, Pollen_T, SST_from_Uk37, Tanom, SST-d18O, APR, AUG, Feb, FRA06 Air Temperature, Ice_core_C, interpolatedTemperature, Jan, JUL, JUN, MAAT, MAT, MAY, MeanT, MSAT, MSAT Russell 2018, nonReliableTemperature 1, nonReliabletemperature 2, nonReliableTemperature_1, nonReliableTemperature_2, nonReliableTemperature_3, nonReliableTemperature_4, NOV, OCT, PLS_C2_temp, SBT, SEP, smoothedTemp, soilTemp, SST_amj, SST_from_planktic0x2Ed18O, SST_from_planktic0x2EMgCa, SST_LDI, subT, Temp Anom 10 CI, Temp Anom 25, Temp Anom 75, Temp Anom 90, Temp Anom Best, Temp Anom FOR15, Temp Anom FRA06, Temp Anom FRA06-TR, temp2, temp2s, tempAv0, tempAv8, temperature 1, temperature 2, temperature_1, temperature_2, temperature_3, temperature_4, temperaturer2, tempK, tempNoElevCorrection, tempNoSourceCorrection, tempPartialCorrect, tempSmooth5, SST, temp, Temp, Tsource
NOAA PaST Thesaurus term
temperature variable (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4633)
TEX86
Definition
an organic compound index that is calculated as the ratio of different isoprenoidal glycerol dialkyl glycerol tetraethers.
source: PaST
Known synonyms
tex86l
NOAA PaST Thesaurus term
tetraether index of 86 carbon atoms (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1599)
thickness
Definition
a physical property that is the height of a layer or object from top to bottom.
source: PaST
Known synonyms
thicknessComposite, Samp thick, sample_thickness, Thickness, Sample thickness
NOAA PaST Thesaurus term
thickness (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3300)
Ti
Definition
a chemical element with atomic number 22.
source: PaST
Known synonyms
Ti peak area, TiProp, Tiash, Titanium, % Ti, %Ti
NOAA PaST Thesaurus term
titanium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=292)
Ti/Al
Definition
the elemental ratio of titanium to aluminum.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
titanium/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3687)
Ti/Ca
Definition
the elemental ratio of titanium to calcium.
source: PaST
Known synonyms
ln(Ti/Ca), ln(ti/ca), log(Ti/Ca)
NOAA PaST Thesaurus term
titanium/calcium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2426)
TIC
Definition
carbon that is derived from an inorganic source.
source: PaST
Known synonyms
% IC
NOAA PaST Thesaurus term
inorganic carbon (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=996)
TiO2
Definition
an inorganic compound that has the chemical formula TiO2.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
titanium dioxide (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1673)
TOC
Definition
carbon that is derived from an organic source.
source: PaST
Known synonyms
Corg, % OC, % Organic carbon, OC-MAR (g), OC-MAR (mg), TOC_flux, TOCmg, Organic carbon concentration
NOAA PaST Thesaurus term
organic carbon (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=995)
TOC/TN
Definition
TBD
source: TBD
Known synonyms
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
totalCarbon
Definition
TBD
source: TBD
Known synonyms
TC
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
totalNitrogen
Definition
TBD
source: TBD
Known synonyms
TN
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
totalPollen
Definition
a data type that includes measurements of plant pollen and spores.
source: PaST
Known synonyms
TotalPollen, TreePollen
treeCover
Definition
TBD
source: TBD
Known synonyms
TreeCover
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
Uk37
Definition
an alkenone unsaturation index that compares the amounts of C37:2, C37:3, and C37:4 alkenones, as (C37:2-C37:4)/(C37:2+C37:3+C37:4).
source: PaST
Known synonyms
UK37-SFS Values, UK37
NOAA PaST Thesaurus term
alkenone unsaturation index Uk37 (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4027)
UK37
Definition
an alkenone unsaturation index that compares the amounts of C37:2, C37:3, and C37:4 alkenones, as (C37:2-C37:4)/(C37:2+C37:3+C37:4).
source: PaST
Known synonyms
sumUK37
NOAA PaST Thesaurus term
alkenone unsaturation index Uk37 (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4027)
Uk37’{#Uk37’}
Definition
an alkenone unsaturation index that compares the amounts of C37:2 and C37:3 alkenones, as C37:2/(C37:2+C37:3).
source: PaST
Known synonyms
UK’37
NOAA PaST Thesaurus term
alkenone unsaturation index Uk37 prime (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4028)
uncertainty
Definition
the value, that when added to and subtracted from the mean estimate, creates a interval that is believed to capture the true value according to an unspecified calculation.
source: PaST
Known synonyms
C20 Total Unc, C22 Total Unc, C30 Total Unc, bubbleNumberDensityError, ageUncertainty, Age_uncertainty, Age, uncertainty (±), ageError, ageUncertaintyOther, d13CPrecision, d13CStandard, d13C Error, d13C std dev, 13CleafwaxC29-33err, d13C_error, d18OPrecision, d18OStandard, d18OPrecisionComposite, d18OStandardComposite, d18OUncertainty, d18O_error, d18O error, d18O_Grass_leaf_error, d18O_Sphagnum_error, dDUncertainty, dD error, dD unc, nC30_err, d2HleafwaxC28err, DMAR_error, DMAR_uncertainty, Epsilon C28-C22 uncertainty, Epsilon28-22uncertainty, Epsilon C28-C24 uncertainty, Epsilon Uncertainty, lakeAreaError, lakeVolumeError, precipitationUncertainty, Annual Precipitation Error, Summer Precipitation Error, Winter Precipitation error, SrCaUncertainty, temperatureUncertainty, uncertainty.temperature, uncertainty_temperature, JAS_error, T_site_std, tempError, temperature_error, JASerror, UK_error, UK37_error, A_site_std, error, uncertainty_1, uncertainty_2, uncertainty_3, uncertainty_4, error1, error2, error3, err, range, TTerror, Calibration Error, C24 Total Unc, C26 Total Unc, C28 Total Unc
NOAA PaST Thesaurus term
unspecified margin of error (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2196)
uncertainty1s
Definition
the value, that when added to and subtracted from the mean estimate, creates a confidence interval that captures the true value 68% of the time.
source: PaST
Known synonyms
C23 stdev, stdev C24, C31 δ13C std dev, C31 δ13C Std Dev, C31d13Csd, C33 δ13C Std Dev, C29 d13C std dev, C31 d13C std dev, C29 δD std dev, dD std dev, C23 δD std dev, C24 d2H stdev, C25 δD std dev, C29 δD Std Dev, C29 δD std dev [±], C31 δD std dev, C31 δD Std Dev, C33 δD Std Dev, C29 dD std dev, StDev C28 dD, d excess stdev, MBTsd, Mg_Ca_sd, MAP1-sigma, precipitation std, precipitation std (with H-set), WMT1-sigma, U371sigmaUncertainty-, CBTsd, stdev weighted average, SD_anomaly, std, stdDev, stdDev___, SE, SD, stdevC24, stdevC26, stdevC28, from_68, 2H_dino_1sig, to_68, stdevC25, stdevC27, stdevC29, stdevC31, sd, C30 dD std dev, C31 dD std dev, C25 stdev, stdev C26, C27 stdev, stdev C28, C29 stdev, d13C_C31_sd, C29 δ13C std dev, C29 δ13C Std Dev, C29 δ13C std dev [±]
NOAA PaST Thesaurus term
68% confidence interval margin of error (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3444)
uncertainty2s
Definition
the value, that when added to and subtracted from the mean estimate, creates a confidence interval that captures the true value 95% of the time.
source: PaST
Known synonyms
MAP2-sigma, WMT2-sigma, from_95, 2 sigma, to_95
NOAA PaST Thesaurus term
95% confidence interval margin of error (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=708)
uncertaintyHigh
Definition
the upper (maximum) bound of the interval believed to capture the true value according to an unspecified calculation.
source: PaST
Known synonyms
SunFracMax, Acc max, ageOld, agelinInterpUncertaintyHigh, ageBchronUncertaintyHigh, agecopRaUncertaintyHigh, ageStalAgeUncertaintyHigh, ageBaconUncertaintyHigh, agelinRegUncertaintyHigh, ageOxCalUncertaintyHigh, ageUncertaintyHigh, AgeOld, age_max, cal_age_range_old, error_older_age, Age_max, max age, max Age, maxAge, age max, age_old, Chironomid d18O max, d18OUncertaintyHigh, ∆RH_upper, UncertaintyDust0x5B0x250x5D0x28Plus0x29, MaxElevM, meltUncertaintyHigh, lakeLevelMax, lakeLevelHi, Pmax, PanomMaxUncertainty, PannomMaxUncertainty, MAP_max, precip+, PannomMax, PanomMax, max RH, SAUG_s, SETE_s, SFEV_s, SHIV_s, IMON1953_s, TETE_s, TFEV_s, THIV_s, tempErrorUpper, JAS+, MAT_max, MATmax, temperatureWarm, tempErrorPlus, WMT_max, WMTmax, TreeCover_max, ageMax, errorUp, errorUp2, uncertainty_plus, upper band, upperErr, upperErr2, year_old
NOAA PaST Thesaurus term
unspecified error upper bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2197)
uncertaintyHigh1s
Definition
the upper (maximum) bound of the confidence interval that captures the true value 68% of the time.
source: PaST
Known synonyms
age_y_bp+1s, Q0.84, Q0.84, ice volume adjusted, Q0.84, ice volume and vegetation adjusted, dDP_1s_upper, deltaT + 1 sigma, p+SD, P+SD, precip_1s_uppper, T+SD, Temperature 1 sigma range high, T.PlusSD, precip_1s_upper
NOAA PaST Thesaurus term
68% confidence interval upper bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1371)
uncertaintyHigh50
Definition
the upper (maximum) bound of the confidence interval that captures the true value 50% of the time.
source: PaST
Known synonyms
0.25_quantile_dust_flux, Precip dD 75 CI, 0.75_quantile_dust_flux
NOAA PaST Thesaurus term
50% confidence interval upper bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=5831)
uncertaintyHigh90
Definition
the upper (maximum) bound of the confidence interval that captures the true value 90% of the time.
source: PaST
Known synonyms
pcpanomCI95
NOAA PaST Thesaurus term
90% confidence interval upper bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=496)
uncertaintyHigh95
Definition
the upper (maximum) bound of the confidence interval that captures the true value 95% of the time.
source: PaST
Known synonyms
age_97.5, age_calBP95+, 95UpperAge, age95conMax, max_age_95, maxAge95, d13C_97.5, d18O_97.5, Q0.975, Q0.975, ice volume adjusted, Q0.975, ice volume and vegetation adjusted, 0.975_quantile_dust_flux, upper95
NOAA PaST Thesaurus term
95% confidence interval upper bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=494)
uncertaintyLow
Definition
the lower (minimum) bound of the interval believed to capture the true value according to an unspecified calculation.
source: PaST
Known synonyms
lowerErr, Acc min, ageMin, agelinInterpUncertaintyLow, ageBchronUncertaintyLow, agecopRaUncertaintyLow, ageYoung, ageStalAgeUncertaintyLow, ageBaconUncertaintyLow, agelinRegUncertaintyLow, ageOxCalUncertaintyLow, ageUncertaintyLow, age_min, cal_age_range_young, error_younger_age, Age_min, min age, min Age, minAge, age min, age_young, Chironomid d18O min, d18OUncertaintyLow, ∆RH_lower, UncertaintyDust0x5B0x250x5D0x28Minus0x29, MinElevM, meltUncertaintyLow, lakeLevelMin, lakeLevelLo, Pmin, PanomMinUncertainty, PannomMinUncertainty, MAP_min, precip-, PannomMin, PanomMin, min RH, SAUG_i, SETE_i, SFEV_i, SHIV_i, IMON1953_i, TETE_i, TFEV_i, THIV_i, tempErrorLower, JAS-, MAT_min, MATmin, temperatureCold, WMT_min, WMTmin, TreeCover_min, errorLow, errorLow2, undertainty_minus, yearBottom, SunFracMin, yearTop
NOAA PaST Thesaurus term
unspecified error lower bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2198)
uncertaintyLow1s
Definition
the lower (minimum) bound of the confidence interval that captures the true value 68% of the time.
source: PaST
Known synonyms
age_y_bp-1s, Q0.16, Q0.16, ice volume adjusted, Q0.16, ice volume and vegetation adjusted, dDP_1s_lower, deltaT - 1 sigma, precip_1s_lower, p-SD, P-SD, T.MinusSD, T-SD, Temperature 1 sigma range low
NOAA PaST Thesaurus term
68% confidence interval lower bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1370)
uncertaintyLow95
Definition
the lower (minimum) bound of the confidence interval that captures the true value 95% of the time.
source: PaST
Known synonyms
lowerErr2, pcpanomCI5, age_2.5, age2.5, age_calBP95-, 95LowerAge, age95ConfMin, minAge95, d13C_2.5, d18O_2.5, Q0.025, Q0.025, ice volume adjusted, Q0.025, ice volume and vegetation adjusted, Precip dD 25 CI, 0.025_quantile_dust_flux, lower95
NOAA PaST Thesaurus term
95% confidence interval lower bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=495)
uncertaintyLow90
Definition
the lower (minimum) bound of the confidence interval that captures the true value 90% of the time.
source: PaST
Known synonyms
age_5thpercentile, age_95thpercentile, age97.5
NOAA PaST Thesaurus term
90% confidence interval lower bound (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=497)
upwelling
Definition
a circulation index that is a measure of the volume of water upwelling in the ocean.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
Upwelling Index (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=4771)
V
Definition
a chemical element with atomic number 23.
source: PaST
Known synonyms
ppm V
NOAA PaST Thesaurus term
vanadium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=930)
V/Al
Definition
the elemental ratio of vanadium to aluminum.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
vanadium/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=2428)
varveThickness
Definition
the thickness of a sublayer of or an entire annually-resolved varve in a sediment sequence.
source: PaST
Known synonyms
Varve thickness, Varve_width
NOAA PaST Thesaurus term
varve thickness (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1630)
volume
Definition
a physical property that is a measure of the three-dimensional space filled by a sample.
source: PaST
Known synonyms
Samp vol
waterContent
Definition
a measure of the amount of water that is contained within a material, often expressed as a weight percent.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
water content (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3313)
waterTableDepth
Definition
a geographic variable that quantifies the depth from the land surface to the upper surface of the zone of saturation in the soil.
source: PaST
Known synonyms
Water Table, Water Table Detrended, water wm, water_table_depth, Water_tableDepth
NOAA PaST Thesaurus term
water table depth (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1398)
wetBulkDensity
Definition
TBD
source: TBD
Known synonyms
WetBD
NOAA PaST Thesaurus term
This concept doesn’t exist on PaST, yet
year
Definition
a duration unit that is equal to 12 months which in science is taken to be equal to 365.25 days (Credit: Units of measurement ontology).
source: PaST
Known synonyms
Year, year start, age_CE, Recon0x2EDate, yearRounded, yearEnsemble, Year b2k
Zr
Definition
a chemical element with atomic number 40.
source: PaST
Known synonyms
ppm Zr
NOAA PaST Thesaurus term
zirconium (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=1022)
Zr/Al
Definition
the elemental ratio of zirconium to aluminum.
source: PaST
Known synonyms
NOAA PaST Thesaurus term
zirconium/aluminum (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=3689)
zscore
Definition
sampling metadata that identifies the elevation, either above or below sea level, at which a sample was collected or a reconstruction was generated.
source: PaST
Known synonyms
Z_score
NOAA PaST Thesaurus term
collection elevation (https://www.ncei.noaa.gov/access/paleo-search/cvterms?termId=537)
-7↩︎