{ "paleoData": [ { "measurementTable": [ { "googleWorkSheetKey": "or6n3qf", "tableName": "paleo1measurement1", "missingValue": "nan", "temperature": { "QCCertification": "AJO", "TSid": "LPD7abab671", "dataType": "float", "description": "surface temperature", "hasMax": -19.28, "hasMaxValue": -19.28, "hasMean": -21.3571, "hasMeanValue": -21.3759, "hasMedian": -21.66, "hasMedianValue": -21.7, "hasMin": -22.36, "hasMinValue": 22.36, "inCompilation": "Temp12k", "measurementMethod": "inverse model", "measurementTableMD5": "110ad368180f4e9893c429e865288524", "measurementTableName": "measurementTable1", "paleoDataMD5": "2c3281d677397616ede925d1cd43083c", "paleoDataTableName": "paleo1measurement1", "paleoMeasurementTableMD5": "9d4c8ef79a70b667e1720fe640e19a53", "proxy": "borehole", "units": "degC", "useInGlobalTemperatureAnalysis": "TRUE", "variableName": "temperature", "variableNameOriginal": "Temperature", "medianRes12k": 101.5, "datum": "abs", "temp12kDkIndex": 623, "proxyLumps": "other ice", "proxyLumpsOriginal": "borehole", "proxyGeneral": "other ice", "meanValue12k": -21.3571, "temperature12kUncertainty": "2.1", "mostRecentCompilations": "Temp12k-1_0_2, HoloceneAbruptChange-0_10_0", "values": [-20.72, -20.4, -20.54, -20.51, -20.95, -20.99, -19.7, -19.28, -19.49, -19.79, -20.09, -20.84, -21.41, -21.65, -21.99, -22.19, -22.25, -22.02, -21.82, -21.74, -21.63, -22.01, -22.28, -22.24, -22.05, -22.36, -21.87, -22.21, -21.95, -21.97, -22.08, -21.97, -21.65, -21.66, -21.2], "notes": null, "proxyDetail": null, "QCnotes": null, "QCRemainingIssues": null, "interpretation": [ { "direction": "positive", "interpDirection": "positive", "scope": "climate", "variable": "T", "isAnnual": "TRUE", "variableOriginal": "TRUE", "seasonalityGeneral": "annual", "variableGroup": "Temperature", "variableGroupOriginal": "T", "seasonalityOriginal": "1 2 3 4 5 6 7 8 9 10 11 12", "variableDetail": "air@surface", "variableGroupDirection": "negative", "seasonality": null } ], "calibration": { "method": "firn modeling", "seasonality": null }, "hasResolution": { "hasMean": 256.9706, "hasMedian": 293.5, "hasMax": 1240, "hasMin": 8 }, "inCompilationBeta": [ { "compilationName": "Temp12k", "compilationVersion": ["1_0_1", "1_0_2", "1_1_0", "1_2_0"] }, { "compilationName": "HoloceneAbruptChange", "compilationVersion": ["0_4_0", "0_5_0", "0_6_0", "0_7_0", "0_8_0", "0_9_0", "0_10_0"] } ] }, "year": { "TSid": "WEB6d1bbe6f", "dataType": "float", "description": "Year AD", "hasMax": 1995, "hasMaxValue": 1995, "hasMean": 273.6857, "hasMeanValue": 480.0294, "hasMedian": 1684, "hasMedianValue": 1429, "hasMin": -6742, "hasMinValue": 5502, "inferredVariableType": "year", "measurementTableMD5": "110ad368180f4e9893c429e865288524", "measurementTableName": "measurementTable1", "paleoDataMD5": "2c3281d677397616ede925d1cd43083c", "paleoDataTableName": "paleo1measurement1", "paleoMeasurementTableMD5": "6224e95d98e87f7de9e8742fe235deb5", "units": "AD", "variableName": "year", "variableType": "inferred", "temperature12kUncertainty": "NA", "values": [-6742, -5502, -4438, -3524, -2738, -2064, -1484, -986, -559, -192, 124, 395, 628, 827, 999, 1147, 1273, 1382, 1476, 1556, 1625, 1684, 1735, 1779, 1816, 1849, 1876, 1900, 1921, 1938, 1953, 1966, 1977, 1987, 1995], "hasResolution": { "hasMean": 256.9706, "hasMedian": 293.5, "hasMax": 1240, "hasMin": 8 } }, "age": { "TSid": "WEBde5aea1b", "dataType": "float", "description": "Years before present (1950) BP", "hasMax": 8692, "hasMaxValue": 7452, "hasMean": 1676.3143, "hasMeanValue": 1469.9706, "hasMedian": 29, "hasMedianValue": 521, "hasMin": -45, "hasMinValue": 45, "inferredVariableType": "age", "measurementTableMD5": "110ad368180f4e9893c429e865288524", "measurementTableName": "measurementTable1", "paleoDataMD5": "2c3281d677397616ede925d1cd43083c", "paleoDataTableName": "paleo1measurement1", "paleoMeasurementTableMD5": "6224e95d98e87f7de9e8742fe235deb5", "units": "BP", "variableName": "age", "variableType": "inferred", "temperature12kUncertainty": "NA", "values": [8692, 7452, 6388, 5474, 4688, 4014, 3434, 2936, 2509, 2142, 1826, 1555, 1322, 1123, 951, 803, 677, 568, 474, 394, 325, 266, 215, 171, 134, 101, 74, 50, 29, 12, -3, -16, -27, -37, -45], "hasResolution": { "hasMaxValue": "nan", "hasMeanValue": "nan", "hasMedianValue": "nan", "hasMinValue": "nan" } } } ] } ], "archiveType": "GlacierIce", "archiveTypeOriginal": "Rock", "collectionName": "DSS Borehole tempature reconstruction", "context": "context.jsonld", "createdBy": "matlab", "dataSetName": "LawDome.Dahl-Jensen.1999", "googleDataURL": "https://docs.google.com/spreadsheets/d/13zzXd8DUmBu1_qKsb2SD-0M4UKrAGWFpcBoIxAq3qqc", "googleMetadataWorksheet": "oq4pto5", "googleSpreadSheetKey": "13zzXd8DUmBu1_qKsb2SD-0M4UKrAGWFpcBoIxAq3qqc", "investigators": "van Ommen, Tas Morgan, Vin Elcheikh, Alan Dahl-Jensen, Dorthe", "lipdComplete": "100%", "lipdverseLink": "http://lipdverse.org/Temp12k/1_0_2/LawDome.Dahl-Jensen.1999.html", "maxYear": 8692, "minYear": -45, "notes": "6742BC to 1995 AD", "studyName": "Law Dome Borehole temperature record", "tagMD5": "_NaN_", "nUniqueAges": 0, "hasDepth": 0, "datasetId": "cVhuirI2i7HxDB0bGT5n", "originalDataUrl": "10.1594/PANGAEA.587008", "agesPerKyr": "NA", "lipdVersion": 1.3, "changelog": [ { "version": "1.0.4", "lastVersion": "1.0.3", "curator": "nicholas", "timestamp": "2022-07-28 17:35:41 UTC", "changes": { "Publication metadata": [ ["pub1_doi: '10.3189/172756499781821102' has been replaced by ''"] ], "Geographic metadata": [ ["geo_elevation: '1390' has been replaced by ''"] ] } }, { "version": "1.0.3", "lastVersion": "1.0.2", "curator": "nicholas", "timestamp": "2022-05-18 00:27:24 UTC", "changes": { "Paleo Column metadata": [ ["temperature (LPD7abab671): paleoData_mostRecentCompilations: '' has been replaced by 'Temp12k-1_0_2, HoloceneAbruptChange-0_10_0'"] ] } }, { "version": "1.0.2", "lastVersion": "1.0.1", "curator": "nick", "timestamp": "2021-04-13 02:33:55 UTC", "changes": { "Paleo Interpretation metadata": [ ["temperature (LPD7abab671): interpretation1_seasonality: 'annual' has been replaced by ''"] ] } }, { "version": "1.0.1", "lastVersion": "1.0.0", "curator": "nick", "timestamp": "2020-10-08 12:42:53 UTC", "changes": { "Paleo Column metadata": [ ["temperature (LPD7abab671): paleoData_proxyDetail: 'borehole' has been replaced by ''"] ] } }, { "version": "1.0.0", "curator": "nick", "timestamp": "2020-08-21 15:34:40 UTC", "notes": "This marks the creation of the changelog, and marks the status of this dataset as of Temp12k version 1.0.1", "changes": { "Setup": [ ["Changelog created"] ] } } ], "neotomaDatasetId": null, "otherAgesPerKyr": null, "pub": [ { "author": [ { "name": "Dahl-Jensen, Dorthe; Morgan, Vin I.; Elcheikh, Alan" } ], "abstract": "Abstract<\/jats:title>\n The temperature profile in the 1200 m deep Dome Summit South (DSS) borehole near the summit of Law Dome, Antarctica, was measured in 1996, 3 years after the termination of the deep drilling.<\/jats:p>\n The temperature profile contains information on past surface temperature over the last 4ka. This temperature history is determined by the use of a Monte Carlo inverse method in which no constraints are placed on the unknown temperature history and no solution is assumed to be unique. The temperature history is obtained from a selection of equally well-fitting solutions by a statistical treatment.<\/jats:p>\n The results show that solutions covering the last 4ka have a well-developed central value, a most likely temperature history. The temperature record has two well-developed minima at AD 1250 and 1850. From 1850 to the present, temperatures have gradually increased by 0.7 K. The reconstructed temperatures are compared with the stable oxygen isotope (18<\/jats:sup>O) from the DSS ice core.<\/jats:p>", "citeKey": "BZFR72FP", "dataUrl": "Manually Entered", "journal": "Annals of Glaciology", "page": "145-150", "pages": "145 150", "pubDataUrl": "doi.org", "publisher": "Cambridge University Press (CUP)", "title": "Monte Carlo inverse modelling of the Law Dome (Antarctica) temperature profile", "type": "article-journal", "volume": "29", "year": 1999, "doi": null, "issue": null }, { "doi": null } ], "geo": { "longitude": 112.8069, "latitude": -66.7697, "elevation": "NA", "geometryType": "Point", "pages2kRegion": "Ant", "siteName": "Law Dome DSS", "subRegion": "unassigned", "countryOcean": "Antarctica", "gcmdLocation": "Antarctica" }, "@context": "context.jsonld" }