{ "paleoData": [ { "measurementTable": [ { "googleWorkSheetKey": "orwlmbm", "tableName": "paleo1measurement1", "missingValue": "NaN", "d18O": { "description": "carbonate", "equilibriumEvidence": "Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6a€°) at a mean annual temperature of 25 C, yield values of 0.92a€° and 0.78a€°, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85a€°, 0.47a€°, and 0.39a€°) for recent samples of Cochliogina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.", "hasChron": "1", "hasMaxValue": 2.63, "hasMeanValue": 1.0253, "hasMedianValue": 0.73, "hasMinValue": -0.28, "hasPaleoDepth": "1", "hasTimeTsid": "MAT67aecea202", "inferredMaterial": "lake water", "inferredMaterialGroup": "surface water", "inferredMaterialGroupOriginal": "lake water", "instrument": "VG Isocarb preparation system and triplecollectorVGPrismIImass spectrometer", "iso2kCertification": "DK", "iso2kPrimaryTimeseries": "TRUE", "iso2kUI": "LS98CUPE01", "isPrimary": false, "longName": "AD", "measurementMaterial": "gastropod", "measurementMaterialDetail": "Pygophorus sp.", "measurementStandard": "VPDB", "measurementTableMD5": "279f2b1ef52a9cb82a788fb3cc894649", "measurementTableName": "measurementTable1", "medianRes12k": "NA", "notes": "; archiveType changed - was originally Lake sediment (LS)", "paleoDataTableName": "pt1_1", "paleoMeasurementTableMD5": "279f2b1ef52a9cb82a788fb3cc894649", "primaryAgeColumn": false, "QCCertification": "DK", "QCnotes": "DK: 18O on gastropods. Another time series is published for another gastropod and an ostracode speices. All three are very similar, although ostracodes are less complete.", "samplingMethod": "cleaned of organic material using 15% H2O2, then washed with deionized water, rinsed in methanol, and dried. Gastropods were cleaned in the same manner, except that specimens were additionally cleaned by sonication...Multiple (5) gastropod shells were ground to a fine powder with a mortar and pestle and a portion of the pulverized aragonite was loaded into stainless steel carrying boats for isotopic analysis.Multiple individuals, each living approximately one year, were used to average shortterm (i.e. yearly) changes in lake conditions.", "TSid": "LS98CUPE", "uncertaintyAnalytical": "0.1", "units": "permil", "variableName": "d18O", "variableType": "measured", "values": [0.44, 0.24, 0.74, 0.54, 0.63, 0.94, 0.15, 0.23, 0.46, 0.06, 0.82, 0.55, 0.58, 0.59, 0.78, 0.05, 0.25, 0.55, 0.28, 0.29, 0.26, 0.44, 0.59, 0.85, 0.62, 0.36, 0.51, 0.58, 0.87, 0.6, 0.69, 0.52, 0.79, 0.13, 0.33, 1.07, 0.31, 0.55, 0.52, 0.47, 0.3, 0.31, 0.55, 0.43, 0.22, 0.27, 0.16, -0.13, 0.16, 0.37, 0.35, 0.66, 0.19, 0.63, 0.3, 0.41, -0.13, 0.02, 0.32, 0.12, 0.33, -0.23, 0.05, 0.14, 0.76, -0.03, 0.17, 0.62, 0.27, 1.03, 0.72, 0.62, 0.1, 0.08, 0.44, 0.41, 0.04, 0.3, 0.33, 0.13, 0.1, 0.57, 0.36, 0.31, -0.28, -0.18, 0.45, 0.48, 0.58, 0.5, 0.45, 0.04, -0.26, 0.43, 0.57, 0.43, 0.41, 0.24, 0.22, 0.3, -0.09, 0.27, 0.21, -0.04, 0.22, 0.16, 0.63, 0.63, -0.27, 0.54, 0.22, -0.15, 0.64, 0.79, 0.21, 0.2, 0.45, 0.43, 0.62, 0.55, 0.15, 0.17, 0.25, 0.21, 0.18, 0.76, 0.45, 1.1, 0.57, 0.01, 0.43, -0.03, 0.73, 0.16, 0.34, 0.18, 0.54, 0.86, 0.47, 0.55, 0.78, 0.96, 0.71, 0.64, 0.62, 0.38, 0.31, 0.42, 0.45, 0.62, 0.26, 0.14, 0.2, 0.54, 0.85, 0.43, -0.1, 0.2, 1.01, 0.64, 0.48, 0.21, 0.8, 0.79, 0.35, 0.18, 0.43, 0.3, 1.17, 0.5, 1.14, 0.7, 0.1, 0.14, 0.39, 0.7, 0.75, 0.73, 0.69, -0.1, 1.02, 0.66, 1.11, 0.57, 0.72, 0.91, 0.66, 0.74, 0.82, 0.94, 1.14, 1.26, 0.87, 0.47, 0.86, 0.67, 0.57, 1.01, 0.62, 0.67, 0.68, 0.6, 0.48, 0.6, 0.68, 0.92, 0.63, 0.75, 1.21, 0.67, 0.71, 1.5, 0.63, 0.93, 1.14, 0.73, 0.85, 0.86, 1.2, 1, 0.16, 0.83, 0.95, 1.04, 1.32, 1.7, 1.35, 0.2, 1.56, 1.27, 1.29, 1.99, 1.51, 1.71, 1.71, 2.12, 2.17, 1.97, 2.25, 1.59, 1.8, 1.8, 1.71, 1.91, 2.02, 1.87, 2.09, 1.77, 1.89, 1.75, 2.25, 2.2, 1.83, 2.25, 1.8, 2.04, 2.05, 1.64, 1.41, 1.77, 1.92, 1.95, 1.96, 2.22, 2.01, 2.07, 1.9, 1.79, 2.12, 1.98, 2.3, 1.82, 2.27, 2.12, 2.09, 2.25, 2.07, 2.07, 1.86, 1.79, 2.25, 2.51, 2.17, 1.97, 1.92, 2.43, 1.95, 1.91, 2.07, 2.2, 2.04, 2.63, 2.18, 2.36, 2.41, 2.41, 2.04, 2.19, 2.41, 2.44, 2.09, 2.38, 2.53, 1.94, 2.29, 1.82, 1.82, 2.14, 2.31, 2.13, 2.35, 2.14, 1.81, 1.97, 2.31, 2.2, 1.86, 2.41, 2.53, 2, 2.22, 2.3, 2.42, 2.25, 2.27, 1.74, 1.23, 2.12, 1.77, 1.89, 2.09, 2.28, 2.4, 2.08, 1.93, 2.11, 2.03, 1.83, 1.08, 1.71, 2.11, 1.69, 1.66, 1.43, 1.59, 2.03, 1.85, 1.69, 0.52, 1.83, 1.53, 2.06, 1.96], "mostRecentCompilations": null, "primaryTimeseries": null, "proxy": null, "interpretation": [ { "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", "variableGroup": "E/P", "dynamical": null, "seasonality": null, "variableDetail": null }, { "scope": "climate", "basis": null, "direction": null, "seasonality": null, "variable": null, "variableDetail": null }, { "scope": "climate", "basis": null, "direction": null, "seasonality": null, "variable": null, "variableDetail": null }, { "basis": "Mean lake water was enriched in 18O by evaporation and was 3.6? greater than mean rainwater.", "coefficient": "NA", "direction": "negative", "equilibriumEvidence": "Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.", "fraction": "NA", "inferredMaterial": "lake water", "integrationTimeUncertaintyType": "Chonology; multiple potential controls on d18O", "integrationTimeUnits": "years", "rank": 1, "scope": "isotope", "variable": "effectivePrecipitation", "variableGroup": "EffectiveMoisture", "variableGroupDirection": "negative", "variableGroupOriginal": "P_E", "seasonality": null }, { "basis": "Interpretation of early Holocene (9000 until 7300 14C yrBP) oxygen isotopic results in terms of E/P is at odds with the strong evidence for moist conditions based on the presence of extensive lowland forest. The discrepancy between early Holocene pollen and 18Oresults in the PetenItza core can be reconciled if lakewater 18O is assumed to have been controlled by both regional climate and the changing surface area/volume ratio of the filling lake", "coefficient": "NA", "equilibriumEvidence": "Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.", "fraction": "NA", "inferredMaterial": "lake water", "integrationTimeUncertaintyType": "Chonology; multiple potential controls on d18O", "integrationTimeUnits": "years", "rank": 2, "scope": "isotope", "variable": "hydrologicBalance", "variableGroup": "area/volume ratio", "direction": null, "seasonality": null }, { "coefficient": "NA", "equilibriumEvidence": "Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.", "fraction": "NA", "inferredMaterial": "lake water", "integrationTimeUncertaintyType": "Chonology; multiple potential controls on d18O", "integrationTimeUnits": "years", "rank": 3, "scope": "isotope", "variable": "temperature", "variableGroup": "Temperature", "variableGroupDirection": "negative", "variableGroupOriginal": "T", "variableOriginal": "Temperature", "direction": null, "seasonality": null } ], "hasResolution": { "hasMaxValue": 228.7, "hasMeanValue": 28.5968, "hasMedianValue": 18.8, "hasMinValue": 5.11, "units": "AD" }, "inCompilationBeta": [ { "compilationName": "iso2k", "compilationVersion": ["0_14_8", "0_15_0", "1_0_0", "1_1_0", "1_1_1", "1_1_2"] } ] }, "age": { "dataType": "float", "description": "Year AD", "hasMaxValue": 1952.0811, "hasMeanValue": -3560.2649, "hasMedianValue": -4244.2, "hasMinValue": -8114, "hasTimeTsid": "MAT67aecea202", "inferredVariableType": "year", "iso2kPrimaryTimeseries": "FALSE", "isPrimary": true, "longName": "AD", "measurementTableMD5": "279f2b1ef52a9cb82a788fb3cc894649", "measurementTableName": "measurementTable1", "medianRes12k": "NA", "paleoDataTableName": "pt1_1", "paleoMeasurementTableMD5": "279f2b1ef52a9cb82a788fb3cc894649", "primaryAgeColumn": true, "samplingMethod": "cleaned of organic material using 15% H2O2, then washed with deionized water, rinsed in methanol, and dried. 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Gastropods were cleaned in the same manner, except that specimens were additionally cleaned by sonication...Multiple (5) gastropod shells were ground to a fine powder with a mortar and pestle and a portion of the pulverized aragonite was loaded into stainless steel carrying boats for isotopic analysis.Multiple individuals, each living approximately one year, were used to average shortterm (i.e. yearly) changes in lake conditions.", "TSid": "MAT9c7c006553", "units": "cm", "variableName": "depth", "variableType": "measured", "values": [4, 9, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5, 18.5, 19.5, 20.5, 21.5, 24, 33.5, 40.5, 44.5, 47.5, 51.5, 56.5, 60, 62, 63.5, 64, 65.5, 66.5, 67.5, 69, 70.5, 71.5, 72.5, 73.5, 75.5, 79.5, 82, 84, 87, 89.5, 92, 96, 97.5, 98.5, 99.5, 100.5, 101.5, 102.5, 103.5, 104.5, 105.5, 106.5, 107.5, 108.5, 109.5, 110.5, 111.5, 112.5, 113.5, 114.5, 115.5, 116.5, 117.5, 118.5, 119.5, 121, 122.5, 123.5, 124.5, 125.5, 126.5, 127.5, 128.5, 130.5, 132.5, 133.5, 134.5, 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"googleMetadataWorksheet": "o4xskn7", "googleSpreadSheetKey": "16c4wAaJzF_OfB36tSbZsTQdhqfLpy_v-D2V86iPFeQQ", "hasChron": "0", "hasDepth": "1", "hasPaleoDepth": 1, "lipdverseLink": "https://lipdverse.org/data/E9b6hh8HOzXsybOoyyfZ/1_0_8", "maxYear": 1952.0811, "minYear": -8114, "Notes": "One gastropod species data used here, also another gastropod species and ostracod records which show the same trends.", "nUniqueAges": 0, "nUniqueGoodAges": 0, "nUniqueOtherAges": 0, "originalDataUrl": "https://www.ncdc.noaa.gov/cdo/f?p=519:1:::::P1_STUDY_ID:5482", "samplingMethod": "cleaned of organic material using 15% H2O2, then washed with deionized water, rinsed in methanol, and dried. Gastropods were cleaned in the same manner, except that specimens were additionally cleaned by sonication...Multiple (5) gastropod shells were ground to a fine powder with a mortar and pestle and a portion of the pulverized aragonite was loaded into stainless steel carrying boats for isotopic analysis.Multiple individuals, each living approximately one year, were used to average shortterm (i.e. yearly) changes in lake conditions.", "tagMD5": "3ffddee63d0df7b16f9fb593240a5e43", "lipdVersion": 1.3, "changelog": [ { "version": "1.0.8", "lastVersion": "1.0.7", "curator": "nicholas", "timestamp": "2025-05-22 04:33:58.845599 UTC", "changes": { "Paleo Interpretation metadata": [ ["age (MAT67aecea202): interpretation6_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation6_scope: '' has been replaced by 'climate'"] ] } }, { "version": "1.0.7", "lastVersion": "1.0.6", "curator": "nicholas", "timestamp": "2025-05-22 00:50:34.133678 UTC", "notes": "Updated lipdverse database entry with a changed file.", "changes": { "Paleo Column metadata": [ ["age (MAT67aecea202): paleoData_units: 'yr AD' has been replaced by 'yr BP'"], ["age (MAT67aecea202): paleoData_variableName: 'year' has been replaced by 'age'"] ] } }, { "version": "1.0.6", "lastVersion": "1.0.5", "curator": "nicholas", "timestamp": "2025-05-20 16:19:01.983347 UTC", "changes": { "Paleo Interpretation metadata": [ ["year (MAT67aecea202): interpretation5_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation5_scope: '' has been replaced by 'climate'"] ] } }, { "version": "1.0.5", "lastVersion": "1.0.4", "curator": "nicholas", "timestamp": "2025-04-17 20:04:43.519796 UTC", "changes": { "Paleo Column metadata": [ ["d18O (LS98CUPE): paleoData_isPrimary: '' has been replaced by 'FALSE'"], ["d18O (LS98CUPE): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'"], ["year (MAT67aecea202): paleoData_isPrimary: '' has been replaced by 'TRUE'"], ["year (MAT67aecea202): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'"], ["depth (MAT9c7c006553): paleoData_isPrimary: '' has been replaced by 'FALSE'"], ["depth (MAT9c7c006553): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'"] ] } }, { "version": "1.0.4", "lastVersion": "1.0.3", "curator": "nicholas", "timestamp": "2025-04-11 16:27:02.069579 UTC", "changes": { "Paleo Interpretation metadata": [ ["d18O (LS98CUPE): interpretation2_basis: 'Mean lake water was enriched in 18O by evaporation and was 3.6? greater than mean rainwater.' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_direction: 'negative' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_equilibriumEvidence: 'Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_inferredMaterial: 'lake water' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_integrationTimeUncertaintyType: 'Chonology; multiple potential controls on d18O' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_integrationTimeUnits: 'years' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_rank: '1' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_scope: 'isotope' has been replaced by 'climate'"], ["d18O (LS98CUPE): interpretation2_variable: 'effectivePrecipitation' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_variableGroup: 'EffectiveMoisture' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_variableGroupDirection: 'negative' has been replaced by ''"], ["d18O (LS98CUPE): interpretation2_variableGroupOriginal: 'P_E' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_basis: 'Interpretation of early Holocene (9000 until 7300 14C yrBP) oxygen isotopic results in terms of E/P is at odds with the strong evidence for moist conditions based on the presence of extensive lowland forest. The discrepancy between early Holocene pollen and 18Oresults in the PetenItza core can be reconciled if lakewater 18O is assumed to have been controlled by both regional climate and the changing surface area/volume ratio of the filling lake' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_equilibriumEvidence: 'Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_inferredMaterial: 'lake water' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_integrationTimeUncertaintyType: 'Chonology; multiple potential controls on d18O' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_integrationTimeUnits: 'years' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_rank: '2' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_scope: 'isotope' has been replaced by 'climate'"], ["d18O (LS98CUPE): interpretation3_variable: 'hydrologicBalance' has been replaced by ''"], ["d18O (LS98CUPE): interpretation3_variableGroup: 'area/volume ratio' has been replaced by ''"], ["d18O (LS98CUPE): interpretation4_rank: '3' has been replaced by '1'"], ["d18O (LS98CUPE): interpretation4_variable: 'temperature' has been replaced by 'effectivePrecipitation'"], ["d18O (LS98CUPE): interpretation4_variableGroup: 'Temperature' has been replaced by 'EffectiveMoisture'"], ["d18O (LS98CUPE): interpretation4_variableGroupOriginal: 'T' has been replaced by 'P_E'"], ["d18O (LS98CUPE): interpretation4_variableOriginal: 'Temperature' has been replaced by ''"], ["d18O (LS98CUPE): interpretation4_basis: '' has been replaced by 'Mean lake water was enriched in 18O by evaporation and was 3.6? greater than mean rainwater.'"], ["d18O (LS98CUPE): interpretation4_direction: '' has been replaced by 'negative'"], ["d18O (LS98CUPE): interpretation5_basis: '' has been replaced by 'Interpretation of early Holocene (9000 until 7300 14C yrBP) oxygen isotopic results in terms of E/P is at odds with the strong evidence for moist conditions based on the presence of extensive lowland forest. The discrepancy between early Holocene pollen and 18Oresults in the PetenItza core can be reconciled if lakewater 18O is assumed to have been controlled by both regional climate and the changing surface area/volume ratio of the filling lake'"], ["d18O (LS98CUPE): interpretation5_equilibriumEvidence: '' has been replaced by 'Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.'"], ["d18O (LS98CUPE): interpretation5_inferredMaterial: '' has been replaced by 'lake water'"], ["d18O (LS98CUPE): interpretation5_integrationTimeUncertaintyType: '' has been replaced by 'Chonology; multiple potential controls on d18O'"], ["d18O (LS98CUPE): interpretation5_integrationTimeUnits: '' has been replaced by 'years'"], ["d18O (LS98CUPE): interpretation5_rank: '' has been replaced by '2'"], ["d18O (LS98CUPE): interpretation5_scope: '' has been replaced by 'isotope'"], ["d18O (LS98CUPE): interpretation5_variable: '' has been replaced by 'hydrologicBalance'"], ["d18O (LS98CUPE): interpretation5_variableGroup: '' has been replaced by 'area/volume ratio'"], ["d18O (LS98CUPE): interpretation6_equilibriumEvidence: '' has been replaced by 'Calculated 18O values for aragonite and calcite, precipitated in equilibrium with modern lake water (18Owater = + 2.6‰) at a mean annual temperature of 25 C, yield values of 0.92‰ and 0.78‰, respectively (Craig, 1965; Grossman & Ku, 1981). These theoretical values are close to mean values (0.85‰, 0.47‰, and 0.39‰) for recent samples of Cochliopina sp., Pyrgophorus sp., and C. ilosvayi, respectively. This suggests that all three taxa precipitate carbonate near equilibrium with the water in which they live.'"], ["d18O (LS98CUPE): interpretation6_inferredMaterial: '' has been replaced by 'lake water'"], ["d18O (LS98CUPE): interpretation6_integrationTimeUncertaintyType: '' has been replaced by 'Chonology; multiple potential controls on d18O'"], ["d18O (LS98CUPE): interpretation6_integrationTimeUnits: '' has been replaced by 'years'"], ["d18O (LS98CUPE): interpretation6_rank: '' has been replaced by '3'"], ["d18O (LS98CUPE): interpretation6_scope: '' has been replaced by 'isotope'"], ["d18O (LS98CUPE): interpretation6_variable: '' has been replaced by 'temperature'"], ["d18O (LS98CUPE): interpretation6_variableGroup: '' has been replaced by 'Temperature'"], ["d18O (LS98CUPE): interpretation6_variableGroupDirection: '' has been replaced by 'negative'"], ["d18O (LS98CUPE): interpretation6_variableGroupOriginal: '' has been replaced by 'T'"], ["d18O (LS98CUPE): interpretation6_variableOriginal: '' has been replaced by 'Temperature'"], ["year (MAT67aecea202): interpretation1_scope: '' has been replaced by 'climate'"], ["year (MAT67aecea202): interpretation2_scope: '' has been replaced by 'climate'"], ["year (MAT67aecea202): interpretation3_scope: '' has been replaced by 'climate'"], ["year (MAT67aecea202): interpretation4_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation1_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation2_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation3_scope: '' has been replaced by 'climate'"], ["depth (MAT9c7c006553): interpretation4_scope: '' has been replaced by 'climate'"] ] } }, { "version": "1.0.3", "lastVersion": "1.0.2", "curator": "nicholas", "timestamp": "2025-04-09 20:48:40.680317 UTC", "notes": "Updated lipdverse database entry with a changed file.", "changes": { "Paleo Interpretation metadata": [ ["d18O (LS98CUPE): interpretation1_direction: 'increase' has been replaced by 'negative'"], ["d18O (LS98CUPE): interpretation1_variable: 'E/P' has been replaced by 'effectivePrecipitation'"], ["d18O (LS98CUPE): interpretation2_variable: 'P_E' has been replaced by 'effectivePrecipitation'"], ["d18O (LS98CUPE): interpretation3_variable: 'area/volume ratio' has been replaced by 'hydrologicBalance'"], ["d18O (LS98CUPE): interpretation4_variable: 'T' has been replaced by 'temperature'"] ] } }, { "version": "1.0.2", "lastVersion": "1.0.1", "curator": "nicholas", "timestamp": "2025-04-09 19:55:26.841845 UTC", "notes": "Changes made as part of LiPDverse vocabulary standardization process", "changes": { "Paleo Interpretation metadata": [ ["d18O (LS98CUPE): interpretation1_direction: 'increase' has been replaced by 'negative'"], ["d18O (LS98CUPE): interpretation1_variable: 'E/P' has been replaced by 'effectivePrecipitation'"], ["d18O (LS98CUPE): interpretation2_variable: 'P_E' has been replaced by 'effectivePrecipitation'"], ["d18O (LS98CUPE): interpretation3_variable: 'area/volume ratio' has been replaced by 'hydrologicBalance'"], ["d18O (LS98CUPE): interpretation4_variable: 'T' has been replaced by 'temperature'"] ] } }, { "version": "1.0.1", "lastVersion": "1.0.0", "curator": "nicholas", "timestamp": "2025-04-08 17:33:03.086614 UTC", "notes": "Changes made as part of LiPDverse vocabulary standardization process", "changes": { "Paleo Column metadata": [ ["d18O (LS98CUPE): paleoData_longName: '' has been replaced by 'AD'"], ["year (MAT67aecea202): paleoData_units: 'AD' has been replaced by 'yr AD'"], ["year (MAT67aecea202): paleoData_longName: '' has been replaced by 'AD'"], ["depth (MAT9c7c006553): paleoData_longName: '' has been replaced by 'AD'"] ] } } ], "environmentInterpretation1_direction": null, "environmentInterpretation1_seasonality": null, "environmentInterpretation1_variable": null, "testField": null, "pub": [ { "author": { "name": "Curtis, Jason H. , Brenner, Mark , Hodell, David A. , Balser, Richard A. , Islebe, Gerald A. , Hooghiemstra, Henry" }, "citation": "Curtis, J. H., Brenner, M., Hodell, D. A., Balser, R. A., Islebe, G. A. and Hooghiemstra, H.: Journal of Paleolimnology, 19(2), 139–159, doi:10.1023/a:1007968508262, 1998.", "dataUrl": "doi.org", "doi": "10.1023/A:1007968508262", "issue": 2, "journal": "Journal of Paleolimnology", "page": "139-159", "pages": -20, "pubDataUrl": "doi.org", "publisher": "Springer Science + Business Media", "type": "journal-article", "volume": 19, "year": 1998 } ], "geo": { "longitude": -89.7848, "latitude": 17.0003, "elevation": 110, "geometryType": "Point", "siteName": "Lake Peten-Itza" }, "@context": "context.jsonld" }