气候变化领域集成服务门户(CCPortal): The NIEER AVHRR snow cover extent product over China - a long-term daily snow record for regional climate research

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DOI	10.5194/essd-13-4711-2021
	The NIEER AVHRR snow cover extent product over China - a long-term daily snow record for regional climate research
	Hao, Xiaohua; Huang, Guanghui; Che, Tao; Ji, Wenzheng; Sun, Xingliang; Zhao, Qin; Zhao, Hongyu; Wang, Jian; Li, Hongyi; Yang, Qian
发表日期	2021
ISSN	1866-3508
EISSN	1866-3516
起始页码	4711
结束页码	4726
卷号	13 期号:10
英文摘要	A long-term Advanced Very High Resolution Radiometer (AVHRR) snow cover extent (SCE) product from 1981 until 2019 over China has been generated by the snow research team in the Northwest Institute of Eco-Environment and Resources (NIEER), Chinese Academy of Sciences. The NIEER AVHRR SCE product has a spatial resolution of 5 km and a daily temporal resolution, and it is a completely gap-free product, which is produced through a series of processes such as the quality control, cloud detection, snow discrimination, and gap-filling (GF). A comprehensive validation with reference to ground snow-depth measurements during snow seasons in China revealed the overall accuracy is 87.4 %, the producer's accuracy was 81.0 %, the user's accuracy was 81.3 %, and the Cohen's kappa (CK) value was 0.717. Another validation with reference to higher-resolution snow maps derived from Landsat-5 Thematic Mapper (TM) images demonstrates an overall accuracy of 87.3 %, a producer's accuracy of 86.7 %, a user's accuracy of 95.7 %, and a Cohen's kappa value of 0.695. These accuracies were significantly higher than those of currently existing AVHRR products. For example, compared with the well-known JASMES AVHRR product, the overall accuracy increased approximately 15 %, the omission error dropped from 60.8% to 19.7 %, the commission error dropped from 31.9% to 21.3 %, and the CK value increased by more than 114 %. The new AVHRR product is already available at https://doi.org/10.11888/Snow.tpdc.271381 (Hao et al., 2021).
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS关键词	INTERACTIVE MULTISENSOR SNOW ; MODIS ; AGREEMENT
WOS记录号	WOS:000709201300001
来源期刊	EARTH SYSTEM SCIENCE DATA
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/241011
作者单位	[Hao, Xiaohua; Che, Tao; Ji, Wenzheng; Sun, Xingliang; Zhao, Qin; Zhao, Hongyu; Wang, Jian; Li, Hongyi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Heihe Remote Sensing Expt Res Stn, Lanzhou 730000, Peoples R China; [Hao, Xiaohua; Che, Tao; Wang, Jian; Li, Hongyi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Remote Sensing Gansu Prov, Lanzhou 730000, Peoples R China; [Huang, Guanghui] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Sun, Xingliang] Lanzhou Jiaotong Univ, Engn Lab Natl Geog State Monitoring, Lanzhou 730070, Peoples R China; [Yang, Qian] Jilin Jianzhu Univ, Sch Geomat & Prospecting Engn, Changchun 130118, Peoples R China
推荐引用方式 GB/T 7714	Hao, Xiaohua,Huang, Guanghui,Che, Tao,et al. The NIEER AVHRR snow cover extent product over China - a long-term daily snow record for regional climate research[J]. 中国科学院西北生态环境资源研究院,2021,13(10).
APA	Hao, Xiaohua.,Huang, Guanghui.,Che, Tao.,Ji, Wenzheng.,Sun, Xingliang.,...&Yang, Qian.(2021).The NIEER AVHRR snow cover extent product over China - a long-term daily snow record for regional climate research.EARTH SYSTEM SCIENCE DATA,13(10).
MLA	Hao, Xiaohua,et al."The NIEER AVHRR snow cover extent product over China - a long-term daily snow record for regional climate research".EARTH SYSTEM SCIENCE DATA 13.10(2021).