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DOI | 10.1007/s11430-020-9685-3 |
Mapping the permafrost stability on the Tibetan Plateau for 2005-2015 | |
Ran, Youhua; Li, Xin; Cheng, Guodong; Nan, Zhuotong; Che, Jinxing; Sheng, Yu; Wu, Qingbai![]() | |
发表日期 | 2021 |
ISSN | 1674-7313 |
EISSN | 1869-1897 |
起始页码 | 62 |
结束页码 | 79 |
卷号 | 64期号:1 |
英文摘要 | Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau (TP). This study produces a new permafrost stability distribution map for the 2010s (2005-2015) derived from the predicted mean annual ground temperature (MAGT) at a depth of zero annual amplitude (10-25 m) by integrating remotely sensed freezing degree-days and thawing degree-days, snow cover days, leaf area index, soil bulk density, high-accuracy soil moisture data, and in situ MAGT measurements from 237 boreholes on the TP by using an ensemble learning method that employs a support vector regression model based on distance-blocked resampled training data with 200 repetitions. Validation of the new permafrost map indicates that it is probably the most accurate of all currently available maps. This map shows that the total area of permafrost on the TP, excluding glaciers and lakes, is approximately 115.02 (105.47-129.59)x10(4) km(2). The areas corresponding to the very stable, stable, semi-stable, transitional, and unstable types are 0.86x10(4), 9.62x10(4), 38.45x10(4), 42.29x10(4), and 23.80x10(4) km(2), respectively. This new map is of fundamental importance for engineering planning and design, ecosystem management, and evaluation of the permafrost change in the future on the TP as a baseline. |
英文关键词 | Mountain permafrost; Third Pole; Remote sensing; Statistical learning |
语种 | 英语 |
WOS研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS关键词 | ROADBED COOLING APPROACH ; ACTIVE-LAYER THICKNESS ; LAND-SURFACE ; NORTHERN-HEMISPHERE ; GROUND SURFACE ; MODIS ; TEMPERATURES ; DEGRADATION ; RAILWAY ; REGRESSION |
WOS记录号 | WOS:000587109300001 |
来源期刊 | SCIENCE CHINA-EARTH SCIENCES
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来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/240322 |
作者单位 | [Ran, Youhua; Cheng, Guodong; Sheng, Yu; Wu, Qingbai; Jin, Huijun; Luo, Dongliang; Wu, Xiaobo] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Li, Xin] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China; [Li, Xin] CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; [Ran, Youhua; Li, Xin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Cheng, Guodong] Shanghai Normal Univ, Inst Urban Study, Shanghai 200234, Peoples R China; [Nan, Zhuotong] Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210023, Peoples R China; [Nan, Zhuotong] Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China; [Che, Jinxing] Nanchang Inst Technol, Sch Sci, Nanchang 330099, Jiangxi, Peoples R China; [Tang, Zhiguang] Hunan Univ Sci & Technol, Natl Local Joint Engn Lab Geospatial Informat Tec, Xiangtan 411201, Peoples R China |
推荐引用方式 GB/T 7714 | Ran, Youhua,Li, Xin,Cheng, Guodong,et al. Mapping the permafrost stability on the Tibetan Plateau for 2005-2015[J]. 中国科学院西北生态环境资源研究院,2021,64(1). |
APA | Ran, Youhua.,Li, Xin.,Cheng, Guodong.,Nan, Zhuotong.,Che, Jinxing.,...&Wu, Xiaobo.(2021).Mapping the permafrost stability on the Tibetan Plateau for 2005-2015.SCIENCE CHINA-EARTH SCIENCES,64(1). |
MLA | Ran, Youhua,et al."Mapping the permafrost stability on the Tibetan Plateau for 2005-2015".SCIENCE CHINA-EARTH SCIENCES 64.1(2021). |
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