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L <- lipdR::readLipd("https://lipdverse.org/data/ZQ9bUXSwEgUhPcByOGua/1_0_6/LS96CUPU.lpd")Report an issue (include datasetId and version)
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iso2k-1_1_1
archiveType: LakeSediment
originalDataUrl: https://www.ncdc.noaa.gov/cdo/f?p=519:1:0::::P1_STUDY_ID:5484
lipdVersion: 1.3
author: Curtis, Jason H. , Hodell, David A. , Brenner, Mark
journal: Quaternary Research
volume: 46
pages: -10
title: Climate Variability on the Yucatan Peninsula (Mexico) during the Past 3500 Years, and Implications for Maya Cultural Evolution
doi: 10.1006/qres.1996.0042
latitude: 20.63
longitude: -87.61
elevation: 14
siteName: Punta Laguna
TSid: MAT5cafe1209d
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: MAT96f4f77e8e
variableName: depth
units: cm
description: depth
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
rank: NA
scope: climate
TSid: LS96CUPUb
variableName: d18O
units: permil
description: carbonate
basis: If the d18O signal is controlled mainly by E/P, then the variation in d18O during the late Holocene suggests repeated multi-decadal wet/dry cycles that are superimposed upon longer-term, millennial patterns of abundant rainfall and drought.
direction: negative
interpDirection: increase
scope: climate
variable: effectivePrecipitation
variableDetail: lake water
variableGroup: E/P
scope: climate
scope: climate
basis: This is demonstrated for Lake Punta Laguna by comparing the measured d18O values of lakewater, rainfall, and groundwater. Local groundwater and rainwater have depleted d18O values of 03.91 and 03.92?, respectively, whereas the lakewater is significantly enriched, averaging 0.93? (Table 3)
direction: negative
inferredMaterial: lake water
integrationTime: 5
integrationTimeUncertaintyType: chronology
integrationTimeUnits: years
rank: 1
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
inferredMaterial: lake water
integrationTime: 5
integrationTimeUncertaintyType: chronology
integrationTimeUnits: years
rank: 2
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T
variableOriginal: temperature
scope: isotope
TSid: LS96CUPUa
variableName: d18O
units: permil
description: carbonate
basis: If the d18O signal is controlled mainly by E/P, then the variation in d18O during the late Holocene suggests repeated multi-decadal wet/dry cycles that are superimposed upon longer-term, millennial patterns of abundant rainfall and drought.
direction: negative
interpDirection: increase
scope: climate
variable: effectivePrecipitation
variableDetail: lake water
variableGroup: E/P
scope: climate
scope: climate
basis: This is demonstrated for Lake Punta Laguna by comparing the measured d18O values of lakewater, rainfall, and groundwater. Local groundwater and rainwater have depleted d18O values of 03.91 and 03.92?, respectively, whereas the lakewater is significantly enriched, averaging 0.93? (Table 3)
direction: negative
inferredMaterial: lake water
integrationTime: 5
integrationTimeUncertaintyType: chronology
integrationTimeUnits: years
scope: isotope
variable: effectivePrecipitation
variableGroup: EffectiveMoisture
variableGroupDirection: negative
variableGroupOriginal: P_E
inferredMaterial: lake water
integrationTime: 5
integrationTimeUncertaintyType: chronology
integrationTimeUnits: years
rank: 2
scope: isotope
variable: temperature
variableGroup: Temperature
variableGroupDirection: negative
variableGroupOriginal: T
variableOriginal: temperature
scope: isotope
TSid: chron1
variableName: depth
units: cm
description: mid-point depth
TSid: chron2
variableName: age14C
units: yr14C BP
description: 14C years before 1950
TSid: chron3
variableName: SD
units: yr14C BP
description: 14C years uncertainty
TSid: chron4
variableName: fractionModern
description: fraction of modern 14C activity
TSid: chron5
variableName: fractionModernUncertainty
description: fraction of modern 14C activity uncertainty
TSid: chron6
variableName: delta13C
units: permil
description: delta13C of material analyzed for 14C
TSid: chron7
variableName: delta13Cuncertainty
units: permil
description: delta13C uncertainty
TSid: chron8
variableName: thickness
units: cm
description: thickness of sample (along depth axis)
TSid: chron9
variableName: labID
description: laboratory ID from radiocarbon facility
TSid: chron10
variableName: materialDated
description: material analyzed
TSid: chron11
variableName: activity
units: Bq g-1
description: 210Pb, 239+240Pu or 137Cs activity
TSid: chron12
variableName: activityUncertainty
units: Bq g-1
description: 210Pb, 239+240Pu or 137Cs activity uncertainty
TSid: chron13
variableName: supportedActivity
description: Y if supported 210Pb activity, N if unsupported 210Pb activity
TSid: chron14
variableName: x210PbModel
description: model used to convert 210Pb activity to age (e.g., constant rate of supply)
TSid: chron15
variableName: age
units: yr BP
description: years before 1950 (calibrated age, or ages that dont need calibration)
TSid: chron16
variableName: SD
units: yr BP
description: uncertainty in age
TSid: chron17
variableName: reservoirAge14C
units: yr14C BP
description: 14C reservoir age
TSid: chron18
variableName: reservoirAge14CUncertainty
units: yr14C BP
description: 14C reservoir age uncertainty
TSid: chron19
variableName: useInAgeModel
description: was this date used in the age model?
root
pub
pub1
geo
PaleoData columns
year (yr AD)
interpretation
1
2
3
4
depth (cm)
interpretation
1
2
3
4
d18O (permil)
interpretation
1
2
3
4
5
6
d18O (permil)
interpretation
1
2
3
4
5
6
ChronData columns
depth (cm)
age14C (yr14C BP)
SD (yr14C BP)
fractionModern ()
fractionModernUncertainty ()
delta13C (permil)
delta13Cuncertainty (permil)
thickness (cm)
labID ()
materialDated ()
activity (Bq g-1)
activityUncertainty (Bq g-1)
supportedActivity ()
x210PbModel ()
age (yr BP)
SD (yr BP)
reservoirAge14C (yr14C BP)
reservoirAge14CUncertainty (yr14C BP)
useInAgeModel ()