{"xmlId":"11625","NOAAStudyId":"13604","studyName":"Grigorieva Ice Cap 12,650 Year Ice Core Isotope and Major Ions Data","doi":"https://doi.org/10.25921/4v6w-jn35","uuid":"e5066c8b-40a2-4231-8aa9-2c52c267035f","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":"Takeuchi, N.; Fujita, K.; Aizen, V.B.; Nikitin, S.A.; Narama, C.; Yokoyama, Y.; Okamoto, S.; Naoki, K.; Kubota, J.","investigatorDetails":[{"firstName":"Nozomu","lastName":"Takeuchi","initials":"N.","orcId":"0000-0002-3267-5534"},{"firstName":"Koji","lastName":"Fujita","initials":"K.","orcId":"0000-0003-3753-4981"},{"firstName":"Vladimir","lastName":"Aizen","initials":"V.B.","orcId":"0000-0001-5578-9529"},{"firstName":"Stanislav","lastName":"Nikitin","initials":"S.A.","orcId":null},{"firstName":"Chiyuki","lastName":"Narama","initials":"C.","orcId":"0000-0002-8233-9053"},{"firstName":"Yusuke","lastName":"Yokoyama","initials":"Y.","orcId":"0000-0001-7869-5891"},{"firstName":"Sachiko","lastName":"Okamoto","initials":"S.","orcId":null},{"firstName":"Kazuhiro","lastName":"Naoki","initials":"K.","orcId":null},{"firstName":"Jumpei","lastName":"Kubota","initials":"J.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"Japan Research Institute for Humanity and Nature","fundingGrant":null},{"fundingAgency":"US Department of Energy","fundingGrant":"contract A107"}],"studyNotes":"High resolution stable isotopes and major ions data from the 86.85 m length Grigorieva surface to bedrock ice core recovered in August 2007.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/13604","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-13604.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-icecore-13604.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/ice-core","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2012-12-06","entryId":"noaa-icecore-13604","earliestYearBP":12590,"mostRecentYearBP":-57,"earliestYearCE":-10640,"mostRecentYearCE":2007,"publication":[{"author":{"name":"K. Fujita, N. Takeuchi, S.A. Nikitin, A.B. Surazakov, S. Okamoto, V.B. Aizen, and J. Kubota"},"pubYear":2011,"title":"Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan","journal":"The Cryosphere","volume":"5","edition":null,"issue":null,"pages":"539-549","reportNumber":null,"citation":"K. Fujita, N. Takeuchi, S.A. Nikitin, A.B. Surazakov, S. Okamoto, V.B. Aizen, and J. Kubota. 2011. Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan. The Cryosphere, 5, 539-549. doi: 10.5194/tc-5-539-2011","type":"publication","identifier":{"type":"doi","id":"10.5194/tc-5-539-2011","url":"http://dx.doi.org/10.5194/tc-5-539-2011"},"abstract":null,"pubRank":"2"},{"author":{"name":"Takeuchi, N., K. Fujita, V. Aizen, C. Narama, Y. Yokoyama, S. Okamoto, K. Naoki, J. Kubota"},"pubYear":2014,"title":"The disappearance of glaciers in the Tien Shan Mountains in Central Asia at the end of the Pleistocene","journal":"Quaternary Science Reviews","volume":"103","edition":null,"issue":null,"pages":"26-33","reportNumber":null,"citation":"Takeuchi, N., K. Fujita, V. Aizen, C. Narama, Y. Yokoyama, S. Okamoto, K. Naoki, J. Kubota. 2014. The disappearance of glaciers in the Tien Shan Mountains in Central Asia at the end of the Pleistocene. Quaternary Science Reviews, 103, 26-33. doi: 10.1016/j.quascirev.2014.09.006","type":"publication","identifier":{"type":"doi","id":"10.1016/j.quascirev.2014.09.006","url":"http://dx.doi.org/10.1016/j.quascirev.2014.09.006"},"abstract":"Glaciers in Central Asia are among the largest ice masses in the Eurasian continent and have supplied vital water to local inhabitants for thousands of years. The glaciers in this region are generally believed to be remnants of the last deglaciation, however, glacier variability in the central Asian mountains since the Last Glacial Maximum (LGM) has not been well documented. Here, we report an 86.87 m-deep ice core record drilled on an ice cap in the Tien Shan Mountains of Central Asia. Radiocarbon dating of organic soil from the bottom of the ice-core borehole showed that the age of the soil was 12,656  12,434 cal years before present, coincident with the beginning of the Younger Dryas cold period (YD). This result indicates that the ice cap did not exist in the Bølling-Allerød period (BA), which was the warm period before the YD, and that the BA climate was significantly warmer than at present. It also indicates that the ice cap has never entirely disappeared in any warm periods throughout the Holocene. We estimated that during the BA its extent was 43% or less of the present glacier coverage in the mountains. Our results suggest that this region at the end of Pleistocene was considerably warmer than at present, and that most of the present glaciers in this region are not relics of the Last Glacial period, but are composed of ice formed during the YD and Holocene.","pubRank":"1"}],"site":[{"NOAASiteId":"54265","siteName":"Grigorieva Ice Cap","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Southcentral 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