气候变化领域集成服务门户(CCPortal): Daily snow water equivalent product with SMMR, SSM/I and SSMIS from 1980 to 2020 over China

CCPortal

DOI	10.1080/20964471.2022.2032998
	Daily snow water equivalent product with SMMR, SSM/I and SSMIS from 1980 to 2020 over China
	Jiang, Lingmei; Yang, Jianwei; Zhang, Cheng; Wu, Shengli; Li, Zhen; Dai, Liyun; Li, Xiaofeng; Qiu, Yubao
通讯作者	Jiang, LM (通讯作者)，Beijing Normal Univ, Beijing 100875, Peoples R China.
发表日期	2020
ISSN	2096-4471
EISSN	2574-5417
英文摘要	The reliable knowledge of seasonal snow volume and its trend is very important to understand Earth's climate system. Thus, a long-time snow water equivalent (SWE) dataset is necessary. This work presents a daily SWE product of 1980-2020 with a linear unmixing method through passive microwave data including SMMR, SSM/I and SSMIS over China after cross-calibration and bias-correction. The unbiased root-mean-square error of snow depth is about 5-7 cm, corresponding to 10-15 mm for SWE, when compared with stations measurements and field snow course data. The spatial patterns and trends of SWE over China present significant regional differences. The overall slope trend presented an insignificant decreasing pattern during 1980-2020 over China; however, there is an obvious fluctuation, i.e. a significant decrease trend during the period 1980-1990, an upward trend from 2005 to 2009, a significant downward trend from 2009 to 2018. The increase of SWE occurred in the Northeast Plain, with an increase trend of 0.2 mm per year. Whereas in the Hengduan Mountains, it presented a downward trend of SWE, up to -0.3 mm per year. In the North Xinjiang, SWE has an increasing trend in the Junggar Basin, while it shows a decreasing trend in the Tianshan and Altai Mountains.
关键词	REMOTE-SENSING DATA ALGORITHM MASS
英文关键词	Snow water equivalent; daily; 1980-2020; passive microwave remote sensing; China
语种	英语
WOS研究方向	Computer Science ; Geology ; Remote Sensing
WOS类目	Computer Science, Information Systems ; Geosciences, Multidisciplinary ; Remote Sensing
WOS记录号	WOS:000757297600001
来源期刊	BIG EARTH 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/254757
作者单位	[Jiang, Lingmei; Yang, Jianwei; Zhang, Cheng] Jointly Sponsored Beijing Normal Univ, State Key Lab Remote Sensing Sci, Beijing, Peoples R China; [Jiang, Lingmei; Yang, Jianwei; Zhang, Cheng] Beijing Normal Univ, Chinese Acad Sci, Fac Geog Sci, Aerosp Informat Res Inst, Beijing, Peoples R China; [Wu, Shengli] China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing, Peoples R China; [Li, Zhen; Qiu, Yubao] Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing, Peoples R China; [Dai, Liyun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Remote Sensing Gansu Prov, Heihe Remote Sensing Expt Res Stn, Lanzhou, Peoples R China; [Li, Xiaofeng] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Lingmei,Yang, Jianwei,Zhang, Cheng,et al. Daily snow water equivalent product with SMMR, SSM/I and SSMIS from 1980 to 2020 over China[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Jiang, Lingmei.,Yang, Jianwei.,Zhang, Cheng.,Wu, Shengli.,Li, Zhen.,...&Qiu, Yubao.(2020).Daily snow water equivalent product with SMMR, SSM/I and SSMIS from 1980 to 2020 over China.BIG EARTH DATA.
MLA	Jiang, Lingmei,et al."Daily snow water equivalent product with SMMR, SSM/I and SSMIS from 1980 to 2020 over China".BIG EARTH DATA (2020).