{"xmlId":"79921","NOAAStudyId":"38782","studyName":"Guliya Ice Cap, China d18O, d-excess, ammonium, Dust Data covering the last 41ka","doi":"https://doi.org/10.25921/rhcy-m012","uuid":"fd24b53d-19bc-4cde-bcee-b4e1d24e3cc6","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":"ICE CORES","investigators":"Thompson, L.G.; Yao, T.; Davis, M.E.; Mosley-Thompson, E.; Synal, H.-A.; Wu, G.; Bolzan, J.F.; Kutuzov, S.; Beaudon, E.; Sierra-Hernández, M.R.; Beer, J.","investigatorDetails":[{"firstName":"Lonnie","lastName":"Thompson","initials":"L.G.","orcId":"0000-0001-5371-2579"},{"firstName":"Tandong","lastName":"Yao","initials":"T.","orcId":"0000-0002-8485-9140"},{"firstName":"Mary","lastName":"Davis","initials":"M.E.","orcId":"0000-0003-1049-5935"},{"firstName":"Ellen","lastName":"Mosley-Thompson","initials":"E.","orcId":"0000-0002-9665-3705"},{"firstName":"Hans-Arno","lastName":"Synal","initials":"H.-A.","orcId":"0000-0001-5621-3089"},{"firstName":"Guangjian","lastName":"Wu","initials":"G.","orcId":null},{"firstName":"John","lastName":"Bolzan","initials":"J.F.","orcId":null},{"firstName":"Stanislav","lastName":"Kutuzov","initials":"S.","orcId":"0000-0003-2007-0922"},{"firstName":"Emilie","lastName":"Beaudon","initials":"E.","orcId":"0000-0002-8186-6433"},{"firstName":"M. Roxana","lastName":"Sierra-Hernández","initials":"M.R.","orcId":"0000-0001-8566-8170"},{"firstName":"Jürg","lastName":"Beer","initials":"J.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"P2C2 Award 1502929"}],"studyNotes":"Provided Keywords: Northwest Tibetan Plateau, orbital forcing, glacial stage, Holocene, Indian summer monsoon, westerlies","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/38782","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-38782.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-icecore-38782.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/ice-core","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2023-11-30","entryId":"noaa-icecore-38782","earliestYearBP":41200,"mostRecentYearBP":-64,"earliestYearCE":-39250,"mostRecentYearCE":2014,"publication":[{"author":{"name":"Thompson, Lonnie G., Tandong Yao, Mary E. Davis, Ellen Mosley-Thompson, Hans Arno-Synal, Guangjian Wu, John F. Bolzan, Stanislav Kutuzov, Emilie Beaudon, M. Roxana Sierra-Hernández, Juerg Beer"},"pubYear":2024,"title":"Ice core evidence for an orbital-scale climate transition on the Northwest Tibetan Plateau","journal":"Quaternary Science Reviews","volume":"324","edition":null,"issue":null,"pages":null,"reportNumber":"108443","citation":"Thompson, Lonnie G., Tandong Yao, Mary E. Davis, Ellen Mosley-Thompson, Hans Arno-Synal, Guangjian Wu, John F. Bolzan, Stanislav Kutuzov, Emilie Beaudon, M. Roxana Sierra-Hernández, Juerg Beer. 2024. Ice core evidence for an orbital-scale climate transition on the Northwest Tibetan Plateau. Quaternary Science Reviews, 324, 108443. doi: 10.1016/j.quascirev.2023.108443","type":"publication","identifier":{"type":"doi","id":"10.1016/j.quascirev.2023.108443","url":"http://dx.doi.org/10.1016/j.quascirev.2023.108443"},"abstract":"The influences on climate in the Northwest Tibetan Plateau (NwTP) have changed on millennial to precessional timescales and have been dependent on the size of the Northern Hemisphere ice sheets, Northern Hemisphere summer insolation, and the migration of the Intertropical Convergence Zone (ITCZ). All these influences control the position and intensity of the westerlies over Central Asia and the Tibetan Plateau and of the Asian Monsoon over South Asia. The top 187.4 meters of a 309.7-meter ice core (2015GP) drilled on the plateau of the Guliya ice cap contains a 41-kyr climate history of the NwTP, a region where information on past climate and environment is limited. The oxygen isotope ratio (d18O), and ammonium (NH4+) and dust concentration records from 2015GP show that during the glacial (41 to 17.5 ka BP) temperature and precipitation in the NwTP were primarily influenced on the precessional timescale by summer insolation, while at millennial resolution the climate was linked to the North Atlantic temperature via the westerlies. During the deglaciation (17.5 to 12 ka BP) summer insolation remained an important temperature forcing, but the influence of the North Atlantic climate on the NwTP climate weakened as the westerlies shifted northward. The Guliya Holocene d18O record shows that NwTP climate was no longer in phase with decreasing summer insolation or with North Atlantic climate, perhaps as the moisture source and pathways were more determinative factors in isotopic fractionation than temperature, and/or incoming solar radiation (insolation) forcing was replaced by rising greenhouse gas concentrations as the primary driver of warming in NwTP.","pubRank":"1"}],"site":[{"NOAASiteId":"20008","siteName":"Guliya Ice Cap","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Eastern Asia>China","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["35.28","81.48"]},"properties":{"southernmostLatitude":"35.28","northernmostLatitude":"35.28","westernmostLongitude":"81.48","easternmostLongitude":"81.48","minElevationMeters":"6200","maxElevationMeters":"6200"}},"paleoData":[{"dataTableName":"GuliyaIceCores_2015 raw Thompson2023","NOAADataTableId":"51506","earliestYear":41000,"mostRecentYear":-64,"timeUnit":"cal yr BP","earliestYearBP":41000,"mostRecentYearBP":-64,"earliestYearCE":-39050,"mostRecentYearCE":2014,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/icecore/trop/guliya/guliya2023_raw_d18O_dex_NH4_dust.txt","urlDescription":"NOAA Template File","linkText":"Guliya d18O, d-excess, NH4+, dust raw Data","variables":[{"cvDataType":"ICE CORES","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>meter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"2015GP_depth_m"},{"cvDataType":"ICE CORES","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"hydrologic material>bulk ice","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VSMOW","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"2015GP_d18O"},{"cvDataType":"ICE CORES","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H>deuterium excess","cvMaterial":"hydrologic material>bulk ice","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VSMOW","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"2015GP_d-excess"},{"cvDataType":"ICE CORES","cvWhat":"chemical composition>compound>inorganic compound>ammonium","cvMaterial":"hydrologic material>bulk ice","cvError":null,"cvUnit":"concentration unit>equivalent per volume unit>microequivalent per liter","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>chromatography>ion chromatography","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"2015GP_NH4+"},{"cvDataType":"ICE CORES","cvWhat":"geological material>bulk geological material>dust","cvMaterial":"hydrologic material>bulk ice","cvError":null,"cvUnit":"concentration unit>count per volume unit>count per milliliter","cvSeasonality":null,"cvDetail":"raw","cvMethod":null,"cvAdditionalInfo":"mineral dust; 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