气候变化领域集成服务门户(CCPortal): Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China

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DOI	10.1017/jog.2018.91
	Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China
	Kutuzov, Stanislav; Thompson, Lonnie G.; Lavrentiev, Ivan; Tian, Lide
通讯作者	Kutuzov, S (通讯作者)
发表日期	2018
ISSN	0022-1430
EISSN	1727-5652
起始页码	977
结束页码	989
卷号	64 期号:248
英文摘要	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.
关键词	GROUND-PENETRATING RADAR GLACIER CHANGES TIEN-SHAN VOLUME CORES RUNOFF MODELS ERRORS FLOW ASIA
英文关键词	glacier geophysics; ground-penetrating radar; ice thickness measurements
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000454427700011
来源期刊	JOURNAL OF GLACIOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259199
推荐引用方式 GB/T 7714	Kutuzov, Stanislav,Thompson, Lonnie G.,Lavrentiev, Ivan,et al. Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China[J]. 中国科学院青藏高原研究所,2018,64(248).
APA	Kutuzov, Stanislav,Thompson, Lonnie G.,Lavrentiev, Ivan,&Tian, Lide.(2018).Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China.JOURNAL OF GLACIOLOGY,64(248).
MLA	Kutuzov, Stanislav,et al."Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China".JOURNAL OF GLACIOLOGY 64.248(2018).