Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China | |
Lavrentiev, I (Lavrentiev, Ivan)2; Kutuzov, S (Kutuzov, Stanislav)1,2; Thompson, LG (Thompson, Lonnie G.)1; Tian, LD (Tian, Lide)3 | |
刊名 | JOURNAL OF GLACIOLOGY |
2018-12-01 | |
卷号 | 64期号:248页码:977-989 |
关键词 | Ground-penetrating Radar Glacier Changes Tien-shan Volume Cores Runoff Models Errors Flow Asia |
ISSN号 | 0022-1430 |
DOI | 10.1017/jog.2018.91 |
文献子类 | Article |
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. |
学科主题 | 地理学 |
WOS研究方向 | Physical Geography ; Geology |
语种 | 英语 |
出版者 | CAMBRIDGE UNIV PRESS |
WOS记录号 | WOS:000454427700011 |
内容类型 | 期刊论文 |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8482] |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Kutuzov, S (Kutuzov, Stanislav) |
作者单位 | 1.Ohio State Univ, Byrd Polar & Climate Res Ctr, Columbus, OH 43210 USA; 2.Russian Acad Sci, Inst Geog, Moscow, Russia; 3.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China. |
推荐引用方式 GB/T 7714 | Lavrentiev, I ,Kutuzov, S ,Thompson, LG ,et al. Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China[J]. JOURNAL OF GLACIOLOGY,2018,64(248):977-989. |
APA | Lavrentiev, I ,Kutuzov, S ,Thompson, LG ,&Tian, LD .(2018).Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China.JOURNAL OF GLACIOLOGY,64(248),977-989. |
MLA | Lavrentiev, I ,et al."Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China".JOURNAL OF GLACIOLOGY 64.248(2018):977-989. |
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