气候变化领域集成服务门户(CCPortal): Monitoring high-altitude river ice distribution at the basin scale in the northeastern Tibetan Plateau from a Landsat time-series spanning 1999

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DOI	10.1016/j.rse.2020.111915
	Monitoring high-altitude river ice distribution at the basin scale in the northeastern Tibetan Plateau from a Landsat time-series spanning 1999–2018
	Li H.; Li H.; Wang J.; Hao X.
发表日期	2020
ISSN	00344257
卷号	247
英文摘要	River ice monitoring is important for hydrological research and water resource management of the Tibetan Plateau but limited by the serious shortage of field observations, and remote sensing can be used as an effective supplementary means for monitoring river ice. However, remote sensing high-altitude river ice is scarce and a basin-scale understanding of river ice is lacking on the Tibetan Plateau. To ascertain the spatial and temporal distribution characteristics of high-altitude river ice at the basin scale, we selected the Babao River basin as the study area, which is a typical river basin located in the northeastern Tibetan Plateau. Utilizing 447 available Landsat images during the river ice period from 1999 to 2018 and the classical normalized difference snow index (NDSI) algorithm, we monitored the river ice in a long time series at the Babao River basin. The average Khat of accuracy validation reached 0.973. The average area of river ice in the river ice period of this basin showed a weak decreasing trend and was negatively correlated with air temperature. We also found that gentle slopes and high elevations are beneficial for the development of river ice. The melting of river ice supplements river discharge in spring. This study is the first to reveal the distribution characteristics and changing trend of river ice at the basin scale on the Tibetan Plateau, and the results provide a reference for river ice research in this region. © 2020 Elsevier Inc.
英文关键词	Basin scale; Remote sensing; River ice; Tibetan Plateau
语种	英语
scopus关键词	Remote sensing; Rivers; Time series; Water management; Watersheds; Distribution characteristics; Field observations; Landsat time series; Long time series; Normalized difference snow indices; Northeastern tibetan plateaux; Spatial and temporal distribution; Waterresource management; Ice; Landsat; remote sensing; river basin; river discharge; river ice; satellite imagery; spatiotemporal analysis; time series analysis; Babao Basin; China; Qinghai; Qinghai-Xizang Plateau; Catha edulis
来源期刊	Remote Sensing of Environment
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/179246
作者单位	Key Laboratory of Remote Sensing of Gansu Province, Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Li H.,Li H.,Wang J.,等. Monitoring high-altitude river ice distribution at the basin scale in the northeastern Tibetan Plateau from a Landsat time-series spanning 1999–2018[J]. 中国科学院西北生态环境资源研究院,2020,247.
APA	Li H.,Li H.,Wang J.,&Hao X..(2020).Monitoring high-altitude river ice distribution at the basin scale in the northeastern Tibetan Plateau from a Landsat time-series spanning 1999–2018.Remote Sensing of Environment,247.
MLA	Li H.,et al."Monitoring high-altitude river ice distribution at the basin scale in the northeastern Tibetan Plateau from a Landsat time-series spanning 1999–2018".Remote Sensing of Environment 247(2020).