{"xmlId":"72812","NOAAStudyId":"31094","studyName":"Koucha, China Air Temperature Reconstructions for the Last 16,000 Years","doi":"https://doi.org/10.25921/ka8v-qp24","uuid":"bd82ca3a-eefa-45b5-a0db-c3ee343a540d","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site."},"dataType":"CLIMATE RECONSTRUCTIONS","investigators":"Herzschuh, U.; Kramer, A.; Mischke, S.; Zhang, C.","investigatorDetails":[{"firstName":"Ulrike","lastName":"Herzschuh","initials":"U.","orcId":"0000-0003-0999-1261"},{"firstName":"Annette","lastName":"Kramer","initials":"A.","orcId":null},{"firstName":"Steffen","lastName":"Mischke","initials":"S.","orcId":null},{"firstName":"Chengjun","lastName":"Zhang","initials":"C.","orcId":null}],"version":"1.0","funding":[],"studyNotes":"This dataset was contributed as part of the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data were contributed to the project from the original data generators, who are listed in the Investigator field of this template file. Additional notes regarding the use of these data in the Temperature-12k project can be found in the LiPD file listed as an Online_Resource of this template file.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/31094","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-31094.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-recon-31094.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction","studyCode":null,"scienceKeywords":["Air Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2020-04-15","entryId":"noaa-recon-31094","earliestYearBP":16438,"mostRecentYearBP":0,"earliestYearCE":-14488,"mostRecentYearCE":1950,"publication":[{"author":{"name":"Kaufman, D., McKay, N., Routson, C., et al."},"pubYear":2020,"title":"A global database of Holocene paleotemperature records","journal":"Scientific Data","volume":"7","edition":null,"issue":null,"pages":null,"reportNumber":"115","citation":"Kaufman, D., McKay, N., Routson, C., et al. 2020. A global database of Holocene paleotemperature records. Scientific Data, 7, 115. doi: 10.1038/s41597-020-0445-3","type":"publication","identifier":{"type":"doi","id":"10.1038/s41597-020-0445-3","url":"http://dx.doi.org/10.1038/s41597-020-0445-3"},"abstract":null,"pubRank":"2"},{"author":{"name":"Herzschuh, Ulrike; Kramer, Annette; Mischke, Steffen; Zhang, Chengjun"},"pubYear":2020,"title":"Quantitative climate and vegetation trends since the late glacial on the northeastern Tibetan Plateau deduced from Koucha Lake pollen spectra","journal":"Quaternary Research","volume":"71","edition":null,"issue":"2","pages":"162-171","reportNumber":null,"citation":"Herzschuh, Ulrike; Kramer, Annette; Mischke, Steffen; Zhang, Chengjun. 2020. Quantitative climate and vegetation trends since the late glacial on the northeastern Tibetan Plateau deduced from Koucha Lake pollen spectra. Quaternary Research, 71(2), 162-171. doi: 10.1016/j.yqres.2008.09.003","type":"publication","identifier":{"type":"doi","id":"10.1016/j.yqres.2008.09.003","url":"http://dx.doi.org/10.1016/j.yqres.2008.09.003"},"abstract":"Quantitative information on vegetation and climate history from the late glacialHolocene on the Tibetan Plateau is extremely rare. Here, we present palynological results of a 4.30-m-long sediment record collected from Koucha Lake in the Bayan Har Mountains, northeastern Tibetan Plateau. Vegetation change has been traced by biomisation, ordination of pollen data, and calculation of pollen ratios. The application of a pollenclimate calibration set from the eastern Tibetan Plateau to Koucha Lake pollen spectra yielded quantitative climate information. The area was covered by alpine desert/steppe, characteristic of a cold and dry climate (with 50% less precipitation than today) between 16,700 and 14,600 cal yr BP. Steppe vegetation, warm (< 1°C higher than today) and wet conditions prevailed between 14,600 and 6600 cal yr BP. These findings contradict evidence from other monsoon-influenced areas of Asia, where the early Holocene is thought to have been moist. Low effective moisture on the northeastern Tibetan Plateau was likely due to high temperature and evaporation, even though precipitation levels may have been similar to present-day values. The vegetation changed to tundra around 6600 cal yr BP, indicating that wet and cool climate conditions occurred on the northeastern Tibetan Plateau during the second half of the Holocene.","pubRank":"1"}],"site":[{"NOAASiteId":"58497","siteName":"Koucha Lake","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Eastern Asia>China","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["34","97.2"]},"properties":{"southernmostLatitude":"34","northernmostLatitude":"34","westernmostLongitude":"97.2","easternmostLongitude":"97.2","minElevationMeters":"4540","maxElevationMeters":"4540"}},"paleoData":[{"dataTableName":"Koucha.Herzschuh.2009","NOAADataTableId":"43698","earliestYear":16438,"mostRecentYear":0,"timeUnit":"cal yr BP","earliestYearBP":16438,"mostRecentYearBP":0,"earliestYearCE":-14488,"mostRecentYearCE":1950,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_NOAA_files/Koucha.Herzschuh.2009.txt","urlDescription":"NOAA Template File","linkText":"Koucha Lake Air Temperature Reconstruction","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"sampling metadata>notes","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"Data are reliable (Yes or No)","cvFormat":"Character","cvShortName":"ReliabIeYN1"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>centimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"depth"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"age"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":null,"cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"1-month period>Jul","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"WAPLS","cvFormat":"Numeric","cvShortName":"temperature"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":null,"cvError":"unspecified error>unspecified error upper bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"1-month period>Jul","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"uncertaintyHigh"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|POLLEN","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":null,"cvError":"unspecified error>unspecified error lower bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"1-month period>Jul","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"uncertaintyLow"}],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_LiPD_files/Koucha.Herzschuh.2009.lpd","urlDescription":"Linked Paleo Data (LiPD) File","linkText":"Koucha Lake Air Temperature Reconstruction","variables":[],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}