noaa-icecore-25130 Guliya Ice Cap Ice Thickness Data Kutuzov, S.; Thompson, L.G.; Lavrentiev, I.; Tian, L. Guliya Ice Cap Ice Thickness Data 2018-11-15 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/25130 Investigator S. Kutuzov Investigator L.G. Thompson Investigator I. Lavrentiev Investigator L. Tian earth science paleoclimate ice core physical properties geoscientificInformation 2015 AD 2015 AD -65 cal yr BP -65 cal yr BP Complete 35.233 35.2896 81.4683 81.4955 6050 6650 Continent Asia Eastern Asia China Guliya Summit>LATITUDE 35.2896>LONGITUDE 81.4955 Continent Asia Eastern Asia China Guliya Plateau>LATITUDE 35.233>LONGITUDE 81.4683 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Stanislav Kutuzov, Lonnie G. Thompson, Ivan Lavrentiev, and Lide Tian 2018 Journal of Glaciology 10.1017/jog.2018.91 https://www.cambridge.org/core/journals/journal-of-glaciology/article/ice-thickness-measurements-of-guliya-ice-cap-western-kunlun-mountains-tibetan-plateau-china/F3E348AF818A9D2FEA83BDBDB6603751

Despite their high value and importance for various glaciological applications, detailed ice thickness measurements of alpine glaciers are still very limited. Knowledge of bedrock topography is essential for paleoglaciological studies. The Guliya ice cap located on the Tibetan Plateau is one of the highest and largest ice caps in mid-low latitude regions. A detailed ground-penetrating radar (GPR) survey was conducted on the Guliya ice cap in 2015 using 20 and 40 MHz frequency antennas. An empirical Bayesian kriging method was used for ice thickness interpolation and uncertainty assessment. GPR measurements revealed complex basal topography of the Guliya glacier with a maximum thickness of 371.12 ± 13 m. The internal reflections caused by changes in the dielectric properties were registered on the 40 MHz radargrams at the summit and were attributed to density variations. As a result of this fieldwork, one of the largest ice thickness datasets in High Mountain Asia was obtained. Guliya glacier elevation changes were assessed by differencing digital elevation models. The glacier gained mass from 2000 to 2015 with an average rate of 0.270 ± 0.11 m w.e. a-1 at the summit and 0.279 ± 0.11 m w.e. a-1 at the lower elevations. STUDY NOTES: Ground-penetrating radar (GPR) ice thickness measurements for two areas (Plateau and Summit) of the Guliya Ice Cap, Tibetan Plateau, China

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/guliya/guliya2018summit-thickness.txt NOAA Template File; Guliya Summit Ice Thickness Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/guliya/guliya2018plateau-thickness.txt NOAA Template File; Guliya Plateau Ice Thickness Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11