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	Brief communication: Evaluation and inter-comparisons of Qinghai-Tibet Plateau permafrost maps based on a new inventory of field evidence
	Cao, Bin1,2; Zhang, Tingjun1; Wu, Qingbai3; Sheng, Yu3,4; Zhao, Lin; Zou, Defu5
刊名	CRYOSPHERE
	2019-02-12
卷号	13期号:2页码:511-519
ISSN号	1994-0416
DOI	10.5194/tc-13-511-2019
通讯作者	Zhang, Tingjun(tjzhang@lzu.edu.cn)
英文摘要	Many maps have been produced to estimate permafrost distribution over the Qinghai-Tibet Plateau (QTP), but the errors and biases among them are poorly understood due to limited field evidence. Here we evaluate and intercompare the results of six different QTP permafrost maps with a new inventory of permafrost presence or absence comprising 1475 field sites compiled from various sources. Based on the in situ measurements, our evaluation results showed a wide range of map performance, with Cohen's kappa coefficient from 0.21 to 0.58 and an overall accuracy between about 55% and 83 %. The low agreement in areas near the boundary between permafrost and non-permafrost and in spatially highly variable landscapes highlights the need for improved mapping methods that consider more controlling factors at both medium-large and local scales.
收录类别	SCI
WOS关键词	AIR-TEMPERATURE ; SNOW COVER ; MOUNTAINS ; SURFACE ; LAYER
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000458364500001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558169
专题	寒区旱区环境与工程研究所
通讯作者	Zhang, Tingjun
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China 2.Carleton Univ, Dept Geog & Environm Studies, Ottawa, ON K1S 5B6, Canada 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China 4.Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing 210044, Jiangsu, Peoples R China 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Cao, Bin,Zhang, Tingjun,Wu, Qingbai,et al. Brief communication: Evaluation and inter-comparisons of Qinghai-Tibet Plateau permafrost maps based on a new inventory of field evidence[J]. CRYOSPHERE,2019,13(2):511-519.
APA	Cao, Bin,Zhang, Tingjun,Wu, Qingbai,Sheng, Yu,Zhao, Lin,&Zou, Defu.(2019).Brief communication: Evaluation and inter-comparisons of Qinghai-Tibet Plateau permafrost maps based on a new inventory of field evidence.CRYOSPHERE,13(2),511-519.
MLA	Cao, Bin,et al."Brief communication: Evaluation and inter-comparisons of Qinghai-Tibet Plateau permafrost maps based on a new inventory of field evidence".CRYOSPHERE 13.2(2019):511-519.

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