气候变化领域集成服务门户(CCPortal): Mapping the permafrost stability on the Tibetan Plateau for 2005-2015

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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; Jin, Huijun; Luo, Dongliang; Tang, Zhiguang; Wu, Xiaobo
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
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).