{ "paleoData": [ { "measurementTable": [ { "googleWorkSheetKey": "ol1tc7u", "tableName": "paleo1measurement1", "missingValue": "NaN", "d18O": { "chronologyIntegrationTime": "NaN", "chronologyIntegrationTimeBasis": "NaN", "chronologyIntegrationTimeUncertainty": "NaN", "chronologyIntegrationTimeUncertaintyType": "NaN", "chronologyIntegrationTimeUnits": "NaN", "description": "carbonate", "equilibriumEvidence": "NaN", "hasChron": "1", "hasMaxValue": "2.49", "hasMeanValue": "2.1232", "hasMedianValue": "2.14", "hasMinValue": "1.71", "hasPaleoDepth": "1", "inferredMaterial": "subsurface seawater", "inferredMaterialGroup": "surface water", "inferredMaterialGroupOriginal": "subsurface seawater", "instrument": "not provided. The details of the sampling and analytical procedures are given by Sachs and Lehman [1999]. But that publication neither mentions the instrument etc", "iso2kCertification": "LJ", "iso2kHackathonNotes": "Decide if inferred material is surface or subsurface seawater. LJ: done 30/11/2018", "iso2kPrimaryTimeseries": "TRUE", "iso2kUI": "MS05LKLF01a", "longName": "AD", "measurementMaterial": "planktonic foraminifera", "measurementMaterialDetail": "N. pachyderma: size probably 150-250", "measurementMaterialScreening": "NaN", "measurementStandard": "PDB", "measurementTableMD5": "0700c5c9802e5e00ee49b36ef00f6e12", "measurementTableName": "measurementTable1", "medianRes12k": "NA", "notes": "; archiveType changed - was originally Marine sediment (MS)", "paleoDataTableName": "pt1_1", "paleoMeasurementTableMD5": "0700c5c9802e5e00ee49b36ef00f6e12", "QCCertification": "LJ", "QCnotes": "updated LiPD file 20/02/2019", "TSid": "MS05LKLF01a", "uncertaintyAnalytical": "NaN", "uncertaintyReproducibility": "NaN", "units": "permil", "variableName": "d18O", "variableType": "measured", "isPrimary": false, "primaryAgeColumn": false, "hasTimeTsid": "MAT478b8efa8c", "values": [2.01, 1.94, 2.43, 2.36, 2.16, 2.16, 1.93, 2.28, 1.9, 2.18, 2.14, 2.19, 2.22, 2.09, 2.03, 2.13, 2.19, 2.12, 2.31, 1.83, 1.71, 2.24, 2.15, 2.21, 2.02, 2.03, 2.27, 2.08, 2.21, 2.28, 2.31, 2.16, 1.92, 2.23, 2.13, 1.93, 2.09, 2.03, 2.19, 2.49, 2.14, 2.24, 1.93, 1.88, 2.03, 2.09, 2.2], "interpretation": [ { "basis": "NaN", "direction": "decrease/increase", "interpDirection": "decrease/increase", "scope": "climate", "seasonality": "deleteMe", "variable": "temperature", "variableDetail": "near sea surface", "variableGroup": "temperature/d18Osw" }, { "scope": "climate" }, { "scope": "climate" }, { "basis": "Urey, H. C. 1948. Oxygen isotopes in nature and in the laboratory. Science, 108:489?496.", "direction": "negative", "equilibriumEvidence": "NaN", "inferredMaterial": "seawater", "integrationTime": "NaN", "integrationTimeBasis": "NaN", "integrationTimeUncertainty": "NaN", "integrationTimeUncertaintyType": "NaN", "integrationTimeUnits": "NaN", "mathematicalRelation": "nonlinear", "scope": "isotope", "seasonality": "Annual", "seasonalityOriginal": "Annual", "variable": "temperature", "variableGroup": "Temperature", "variableGroupDirection": "negative", "variableGroupOriginal": "T_water", "coefficient": "NA", "fraction": "NA", "rank": "NA" }, { "basis": "Urey, H. C. 1948. Oxygen isotopes in nature and in the laboratory. Science, 108:489?496.", "direction": "negative", "equilibriumEvidence": "NaN", "inferredMaterial": "calcite, near sea surface", "integrationTime": "NaN", "integrationTimeBasis": "NaN", "integrationTimeUncertainty": "NaN", "integrationTimeUncertaintyType": "NaN", "integrationTimeUnits": "NaN", "mathematicalRelation": "non-linear", "scope": "isotope", "seasonality": "Annual", "variable": "seawaterIsotope", "variableGroup": "EffectiveMoisture", "variableGroupDirection": "negative", "variableGroupOriginal": "seawater_isotope", "coefficient": "NA", "fraction": "NA", "rank": "NA" }, { "basis": "Spero, H.J., Bijma, J., Lea, D.W., Bemis, B.E., 1997. Effect of seawater carbonate concentration on foraminiferal carbon and oxygen isotopes. 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"hasMedianValue": 36.59, "hasMinValue": 31.54, "units": "AD" } }, "depth": { "dataType": "float", "description": "depth", "hasMaxValue": "47.5", "hasMeanValue": "23.5851", "hasMedianValue": "23.5", "hasMinValue": "0.5", "iso2kPrimaryTimeseries": "FALSE", "longName": "AD", "measurementTableMD5": "0700c5c9802e5e00ee49b36ef00f6e12", "measurementTableName": "measurementTable1", "medianRes12k": "NA", "paleoDataTableName": "pt1_1", "paleoMeasurementTableMD5": "0700c5c9802e5e00ee49b36ef00f6e12", "TSid": "MAT3ebd17dc17", "units": "cm", "variableName": "depth", "variableType": "measured", "isPrimary": false, "primaryAgeColumn": false, "hasTimeTsid": "MAT478b8efa8c", "values": [0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5, 18.5, 19.5, 20.5, 21.5, 22.5, 23.5, 24.5, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5, 31.5, 32.5, 33.5, 34.5, 35.5, 36.5, 37.5, 38.5, 39.5, 40.5, 41.5, 42.5, 44.5, 45.5, 46.5, 47.5], "hasResolution": { "hasMaxValue": 64.22, 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"uncertainty": "NaN", "uncertaintyType": "NaN" }, "hasResolution": { "hasMaxValue": 64.22, "hasMeanValue": 36.497, "hasMedianValue": 36.59, "hasMinValue": 31.54, "units": "AD" }, "inCompilationBeta": [ { "compilationName": "iso2k", "compilationVersion": ["0_14_8", "0_15_0", "1_0_0", "1_1_0", "1_1_1"] } ] } } ] } ], "chronData": [ { "measurementTable": [ { "googleWorkSheetKey": "oop1g8l", "tableName": "chron1measurement1", "missingValue": "NaN", "googWorkSheetKey": "obkjfp6", "depth": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron1", "variableName": "depth", "description": "mid-point depth", "units": "cm", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": 43.5, "hasMinValue": 0, "hasMeanValue": 21.625, "hasMedianValue": 21.5, "number": 1, "values": [0, 10.5, 32.5, 43.5] }, "age14C": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron2", "variableName": "age14C", "description": "14C years before 1950", "units": "yr14C BP", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": 2040, "hasMinValue": 0, "hasMeanValue": 1125, "hasMedianValue": 1230, "number": 2, "values": [0, 780, 1680, 2040] }, "SD": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron3", "variableName": "SD", "description": "14C years uncertainty", "units": "yr14C BP", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": 50, "hasMinValue": 25, "hasMeanValue": 35, "hasMedianValue": 30, "variableNameOriginal": "age14Cuncertainty", "number": 3, "values": ["NaN", 30, 50, 25] }, "fractionModern": { "chronMeasMD5": 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"fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron6", "variableName": "delta13C", "description": "delta13C of material analyzed for 14C", "units": "permil", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "number": 6, "values": ["NaN", "NaN", "NaN", "NaN"] }, "delta13Cuncertainty": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron7", "variableName": "delta13Cuncertainty", "description": "delta13C uncertainty", "units": "permil", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "number": 7, "values": ["NaN", "NaN", "NaN", 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"NaN"] }, "activityUncertainty": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron12", "variableName": "activityUncertainty", "description": "210Pb, 239+240Pu or 137Cs activity uncertainty", "units": "Bq g-1", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "number": 12, "values": ["NaN", "NaN", "NaN", "NaN"] }, "supportedActivity": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron13", "variableName": "supportedActivity", "description": "Y if supported 210Pb activity, N if unsupported 210Pb activity", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "units": "unitless", "number": 13, "values": ["NaN", "NaN", "NaN", "NaN"] }, "x210PbModel": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron14", "variableName": "x210PbModel", "description": "model used to convert 210Pb activity to age (e.g., constant rate of supply)", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "units": "unitless", "number": 14, "values": ["NaN", "NaN", "NaN", "NaN"] }, "age": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron15", "variableName": "age", "description": "years before 1950 (calibrated age, or ages that dont need calibration)", "units": "yr BP", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": 1568, "hasMinValue": 0, "hasMeanValue": 801.25, "hasMedianValue": 818.5, "number": 15, "values": [0, 416, 1221, 1568] }, "SD-1": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron16", "variableName": "SD", "description": "uncertainty in age", "units": "yr BP", "chronNumber": "1", "chronMeasurementTableNumber": "1", "chronMeasurementTableName": "measurementTable1", "paleoName": "chron1", "hasMaxValue": "_NaN_", "hasMinValue": "_NaN_", "hasMeanValue": "_NaN_", "hasMedianValue": "_NaN_", "variableNameOriginal": "ageUncertainty", "number": 16, "values": ["NaN", "NaN", "NaN", "NaN"] }, "reservoirAge14C": { "chronMeasMD5": "fc82720bd513525adf678411f4452547", "measurementTableName": "measurementTable1", "TSid": "chron17", "variableName": "reservoirAge14C", "description": "14C reservoir age", "units": "yr14C BP", "chronNumber": "1", 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0.0409, 0.0397, 0.0369, 0.0328, 0.0274, 0.0219, 0.0174, 0.0142, 0.0131, 0.0115, 0.0099, 0.0086, 0.0074, 0.0061, 0.0046, 0.0039, 0.0034, 0.0033, 0.0033, 0.0034, 0.0031, 0.0021, 0.0015, 0.0011, 0.0009, 0.0007, 0.0006, 0.0005] } } ] } ] } ], "archiveType": "MarineSediment", "archiveTypeOriginal": "marine sediment", "createdBy": "matlab", "datasetId": "OfqaOECSQUKToyH6kw63", "dataSetName": "MS05LKLF", "datasetVersion": "1.0.5", "googleMetadataWorksheet": "oy4r7x5", "googleSpreadSheetKey": "1tzZhAHpfVEAYRQCrqVFENxmrV8yH-yEoXLhuGFnxs8s", "hasChron": "1", "hasDepth": "1", "hasPaleoDepth": 1, "lipdverseLink": "https://lipdverse.org/data/OfqaOECSQUKToyH6kw63/1_0_5", "maxYear": 1698.67, "minYear": 19.81, "Notes": "WARNING. Documentation is extremely poor for this record. d18Osw has to be estimated, multiple species of planktic foraminifera and SST estimates (MAT and alkenones, alk was taken in Ocean2k)", "nUniqueAges": 4, "nUniqueGoodAges": 0, "nUniqueOtherAges": 0, "originalDataUrl": "https://www.ncdc.noaa.gov/paleo-search/study/5966", "tagMD5": "7d8dfd19e84f1d46101922d53c37506e", "lipdVersion": 1.3, "changelog": [ { "version": "1.0.5", "lastVersion": "1.0.4", "curator": "nicholas", "timestamp": "2025-04-17 20:04:46.881764 UTC", "changes": { "Paleo Column metadata": [ ["depth (MAT3ebd17dc17): paleoData_isPrimary: '' has been replaced by 'FALSE'"], ["depth (MAT3ebd17dc17): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'"], ["year (MAT478b8efa8c): paleoData_isPrimary: '' has been replaced by 'TRUE'"], ["year (MAT478b8efa8c): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'"], ["d18O (MS05LKLF01a): paleoData_isPrimary: '' has been replaced by 'FALSE'"], ["d18O (MS05LKLF01a): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'"], ["d18O (MS05LKLF01b): paleoData_isPrimary: '' has been replaced by 'FALSE'"], ["d18O (MS05LKLF01b): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'"] ] } }, { "version": "1.0.4", "lastVersion": "1.0.3", "curator": "nicholas", "timestamp": "2025-04-11 16:27:05.650944 UTC", "changes": { "Paleo Interpretation metadata": [ ["d18O (MS05LKLF01a): interpretation2_basis: 'Urey, H. 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interpretation4_variableGroup: '' has been replaced by 'EffectiveMoisture'"], ["d18O (MS05LKLF01b): interpretation4_variableGroupDirection: '' has been replaced by 'negative'"], ["d18O (MS05LKLF01b): interpretation4_variableGroupOriginal: '' has been replaced by 'd18O_seawater'"], ["d18O (MS05LKLF01b): interpretation4_variableOriginal: '' has been replaced by 'Salinity'"], ["d18O (MS05LKLF01b): interpretation5_scope: '' has been replaced by 'isotope'"], ["d18O (MS05LKLF01b): interpretation6_scope: '' has been replaced by 'isotope'"] ] } }, { "version": "1.0.3", "lastVersion": "1.0.2", "curator": "nicholas", "timestamp": "2025-04-09 20:49:01.287038 UTC", "notes": "Updated lipdverse database entry with a changed file.", "changes": { "Paleo Interpretation metadata": [ ["d18O (MS05LKLF01a): interpretation1_seasonality: 'NaN' has been replaced by 'deleteMe'"], ["d18O (MS05LKLF01a): interpretation1_variable: 'temperature/d18Osw' has been replaced by 'temperature'"], ["d18O (MS05LKLF01a): 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'seawaterIsotope'"] ] } }, { "version": "1.0.2", "lastVersion": "1.0.1", "curator": "nicholas", "timestamp": "2025-04-09 19:59:45.020328 UTC", "notes": "Changes made as part of LiPDverse vocabulary standardization process", "changes": { "Paleo Interpretation metadata": [ ["d18O (MS05LKLF01a): interpretation1_seasonality: 'NaN' has been replaced by 'deleteMe'"], ["d18O (MS05LKLF01a): interpretation1_variable: 'temperature/d18Osw' has been replaced by 'temperature'"], ["d18O (MS05LKLF01a): interpretation2_seasonality: 'annual' has been replaced by 'Annual'"], ["d18O (MS05LKLF01a): interpretation2_variable: 'T_water' has been replaced by 'temperature'"], ["d18O (MS05LKLF01a): interpretation3_seasonality: 'not applicable (always)' has been replaced by 'Annual'"], ["d18O (MS05LKLF01a): interpretation3_variable: 'seawater_isotope' has been replaced by 'seawaterIsotope'"], ["d18O (MS05LKLF01a): interpretation4_seasonality: 'not applicable (always)' has been replaced by 'Annual'"], ["d18O (MS05LKLF01a): interpretation4_variable: 'Carbonate_ion_concentration' has been replaced by 'deleteMe'"], ["d18O (MS05LKLF01b): interpretation1_seasonality: 'NaN' has been replaced by 'deleteMe'"], ["d18O (MS05LKLF01b): interpretation1_variable: 'S' has been replaced by 'salinity'"], ["d18O (MS05LKLF01b): interpretation2_seasonality: 'not applicable (always)' has been replaced by 'Annual'"], ["d18O (MS05LKLF01b): interpretation2_variable: 'd18O_seawater' has been replaced by 'seawaterIsotope'"] ] } }, { "version": "1.0.1", "lastVersion": "1.0.0", "curator": "nicholas", "timestamp": "2025-04-08 17:33:04.795312 UTC", "notes": "Changes made as part of LiPDverse vocabulary standardization process", "changes": { "Paleo Column metadata": [ ["depth (MAT3ebd17dc17): paleoData_longName: '' has been replaced by 'AD'"], ["year (MAT478b8efa8c): paleoData_units: 'AD' has been replaced by 'yr AD'"], ["year (MAT478b8efa8c): paleoData_longName: '' has been replaced by 'AD'"], ["d18O (MS05LKLF01a): paleoData_longName: '' has been replaced by 'AD'"], ["d18O (MS05LKLF01b): paleoData_longName: '' has been replaced by 'AD'"] ] } } ], "pub": [ { "citation": "Keigwin, L. D., Sachs, J. P., Rosenthal, Y. and Boyle, E. A.: The 8200 year B.P. event in the slope water system, western subpolar North Atlantic, Paleoceanography, 20(2), n/a–n/a, doi:10.1029/2004pa001074, 2005.", "citeKey": "keigwin2005the", "dataUrl": "ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin2005/keigwin2005.txt", "doi": "10.1029/2004PA001074", "issue": "2", "journal": "Paleoceanography", "pages": "n/a-n/a", "publisher": "American Geophysical Union (AGU)", "title": "The 8200 year B.P. event in the slope water system, western subpolar North Atlantic", "type": "article-journal", "volume": "20", "year": 2005 }, { "citation": "McGregor, H. V., Evans, M. N., Goosse, H., Leduc, G., Martrat, B., Addison, J. A., Mortyn, P. G., Oppo, D. W., Seidenkrantz, M.-S., Sicre, M.-A., Phipps, S. J., Selvaraj, K., Thirumalai, K., Filipsson, H. L. and Ersek, V.: Robust global ocean cooling trend for the pre-industrial Common Era, Nature Geoscience, 8(9), 671–677, doi:10.1038/ngeo2510, 2015.", "citeKey": "mcgregor2015robust", "doi": "10.1038/ngeo2510", "institution": "World Data Center for Paleoclimatology", "title": "O2kLR-LaurentianFan.Keigwin.2005", "type": "dataCitation", "url": "https://www.ncdc.noaa.gov/paleo/study/5966", "year": 2015 } ], "geo": { "longitude": -54.87, "latitude": 43.48, "elevation": -3975, "geometryType": "Point", "siteName": "Laurentian Fan, western subpolar North Atlantic" }, "@context": "context.jsonld" }