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L <- lipdR::readLipd("https://lipdverse.org/data/YBQqgQPyW9sf1R1iYKWo/1_0_6/CO95TUNG.lpd")Report an issue (include datasetId and version)
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iso2k-1_1_0
archiveType: Coral
originalDataUrl: https://www.ncdc.noaa.gov/paleo/study/1844
lipdVersion: 1.3
dataContributor: KJA, Ally May
author: Tudhope, A.W.; Shimmield, G.B.; Chilcott, C.P.; Jebb, M.; Fallick, A.E.; Dalgleish, A.N.
citeKey: tudhope1995recent
journal: Earth and Planetary Science Letters
volume: 136
pages: -15
title: Recent changes in climate in the far western equatorial Pacific and their relationship to the Southern Oscillation; oxygen isotope records from massive corals, Papua New Guinea
doi: 10.1016/0012-821X(95)00156-7
author: Tudhope, A.W.
title: Ocean2kHR-PacificPNGTudhope1995
latitude: -5.22
longitude: 145.82
elevation: -3
siteName: Madang, Papua New Guinea
pages2kRegion: Ocean
TSid: MAT3848a32da7
variableName: year
units: yr AD
description: Year AD
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: Ocean2kHR_172
variableName: d18O
units: permil
description: carbonate
useInGlobalTemperatureAnalysis: TRUE
direction: decrease/increase
interpDirection: decrease/increase
scope: climate
seasonality: subannual
variable: temperature
variableDetail: sea surface
variableGroup: temperature and salinity
scope: climate
scope: climate
basis: There is a good visual match between the smoothed coral record and the similarly smoothed Madang rainfall record for the period from the late 1950s onwards (Fig. 3B). Periods of low rainfall coincide with deposition of isotopically heavy skeleton.... Periods of high amplitude of annual cycle tend to coincide in both records, and these periods tend to occur during the El Nifio phase of the Southern Oscillation. These results suggest that, although relatively small in absolute terms, the observed variations in the amplitude of the coral dI80 annual cycle (about 0.l-0.2 permil) may be attributed mainly to variations in rainfall.
direction: positive
inferredMaterial: seawater
integrationTime: 3
integrationTimeBasis: In our corals we used a combination of distinctive skeletal fluorescent banding (visible under illumination with longwave UV light; Fig. 2) to provide an initial chronology. The accuracy of this chronology was subsequently verified on a year-byyear basis by consideration of the annual cycle in skeletal d18O
integrationTimeUnits: months
mathematicalRelation: linear
rank: 1
scope: isotope
seasonality: subannual
variable: seawaterIsotope
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: d18O_seawater
basis: inter-annual temperature variations are related to the SO activity, and, although relatively small, these will tend to magnify the SO signal in
the coral d18O.
direction: negative
inferredMaterial: seawater
integrationTime: 3
integrationTimeBasis: In our corals we used a combination of distinctive skeletal fluorescent banding (visible under illumination with longwave UV light; Fig. 2) to provide an initial chronology. The accuracy of this chronology was subsequently verified on a year-byyear basis by consideration of the annual cycle in skeletal d18O
integrationTimeUnits: months
mathematicalRelation: linear
rank: 2
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T_water
scope: isotope
TSid: chron1
variableName: depthUTh
units: mm
description: mid-point depth of the sub-sample drilled for U-Th age
TSid: chron20
variableName: depthtopPb
units: mm
description: Depth at the top of the sub-sample for 210Pb analysis
TSid: chron21
variableName: depthbottomPb
units: mm
description: Depth at the bottom of the sub-sample for 210Pb analysis
TSid: chron24
variableName: depthtopCs
units: mm
description: Depth at the top of the sub-sample for 137Cs analysis
TSid: chron25
variableName: depthbottomCs
units: mm
description: Depth at the bottom of the sub-sample for 137Cs analysis
TSid: chron2
variableName: SampleID
description: Sample ID for the U-Th age measured
TSid: chron3
variableName: weight
units: mg
description: Weight of powder analyzed for U-Th age
TSid: chron4
variableName: U238
units: ppb
description: 238U content of the sub-sample
TSid: chron5
variableName: U238_error
units: ppb
description: Analytical uncertainty of 238U
TSid: chron6
variableName: Th232
units: ppt
description: 232Th content of the sub-sample
TSid: chron7
variableName: Th232_error
units: ppt
description: Analytical uncertainty of 232Th
TSid: chron8
variableName: d234U
units: (ratio)
description: d234U measured in the sub-sample
TSid: chron9
variableName: d234U_error
description: Analytical uncertainty of d234U
TSid: chron10
variableName: Th230_U238activity
units: activity
description: [230Th/238U] activity measured in the sub-sample
TSid: chron11
variableName: U_Thactivity_error
description: Analytical uncertainty of 230Th-238U activity
TSid: chron12
variableName: Th230_Th232ratio
units: ppm
description: [230Th/232Th] ratio in the sub-sample
TSid: chron13
variableName: Thratio_error
units: ppm
description: Analytical uncertainty of 230Th-232Th ratio
TSid: chron14
variableName: AgeUncorrected
units: years ago
description: Uncorrected U-Th age of the sub-sample
TSid: chron15
variableName: AgeUncorr_error
units: yrs
description: Analytical uncertainty of Uncorrected Age
TSid: chron16
variableName: age
units: years ago
description: Corrected U-Th age of the sub-sample
TSid: chron17
variableName: AgeCorr_error
units: yrs
description: Uncertainty of Corrected Age (includes Th correction)
TSid: chron18
variableName: dU234initial
units: (ratio)
description: Calculated initial d234U in the sub-sample
TSid: chron19
variableName: dU234i_error
description: Analytical uncertainty of calculated d234U initial
TSid: chron22
variableName: Pb210excess
units: dpm/g
description: Lead-210 excess measured in the sub-sample
TSid: chron23
variableName: Pb210_error
units: dpm/g
description: Analytical uncertainty of 210Pb excess
TSid: chron26
variableName: Cs137gamactivity
units: Bq/g
description: Cesium-137 g-activity measured in the sub-sample
TSid: chron27
variableName: Cs137_error
units: Bq/g
description: Analytical uncertainty of 137Cs g-activity
TSid: chron28
variableName: bandAge
units: yr CE
description: Band counted age for the U-Th sample
TSid: chron29
variableName: sampleType
description: Sample description. E.g., round plug, annual density band
root
pub
pub1
pub2
geo
PaleoData columns
year (yr AD)
interpretation
1
2
3
4
d18O (permil)
interpretation
1
2
3
4
5
6
ChronData columns
depthUTh (mm)
depthtopPb (mm)
depthbottomPb (mm)
depthtopCs (mm)
depthbottomCs (mm)
SampleID ()
weight (mg)
U238 (ppb)
U238_error (ppb)
Th232 (ppt)
Th232_error (ppt)
d234U ((ratio))
d234U_error ()
Th230_U238activity (activity)
U_Thactivity_error ()
Th230_Th232ratio (ppm)
Thratio_error (ppm)
AgeUncorrected (years ago)
AgeUncorr_error (yrs)
age (years ago)
AgeCorr_error (yrs)
dU234initial ((ratio))
dU234i_error ()
Pb210excess (dpm/g)
Pb210_error (dpm/g)
Cs137gamactivity (Bq/g)
Cs137_error (Bq/g)
bandAge (yr CE)
sampleType ()