气候变化领域集成服务门户(CCPortal): Diurnal Cycle Model of Lake Ice Surface Albedo: A Case Study of Wuliangsuhai Lake

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DOI	10.3390/rs13163334
	Diurnal Cycle Model of Lake Ice Surface Albedo: A Case Study of Wuliangsuhai Lake
	Li, Zhijun; Wang, Qingkai; Tang, Mingguang; Lu, Peng; Li, Guoyu; Lepparanta, Matti; Huotari, Jussi; Arvola, Lauri; Shi, Lijuan
通讯作者	Li, GY (通讯作者)，Northwest Inst Ecoenvironm & Resources, Chinese Acad Sci, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
EISSN	2072-4292
卷号	13 期号:16
英文摘要	Ice surface albedo is an important factor in various optical remote sensing technologies used to determine the distribution of snow or melt water on the ice, and to judge the formation or melting of lake ice in winter, especially in cold and arid areas. In this study, field measurements were conducted at Wuliangsuhai Lake, a typical lake in the semi-arid cold area of China, to investigate the diurnal variation of the ice surface albedo. Observations showed that the diurnal variations of the ice surface albedo exhibit bimodal characteristics with peaks occurring after sunrise and before sunset. The curve of ice surface albedo with time is affected by weather conditions. The first peak occurs later on cloudy days compared with sunny days, whereas the second peak appears earlier on cloudy days. Four probability density distribution functions-Laplace, Gauss, Gumbel, and Cauchy-were combined linearly to model the daily variation of the lake ice albedo on a sunny day. The simulations of diurnal variation in the albedo during the period from sunrise to sunset with a solar altitude angle higher than 5 degrees indicate that the Laplace combination is the optimal statistical model. The Laplace combination can not only describe the bimodal characteristic of the diurnal albedo cycle when the solar altitude angle is higher than 5 degrees, but also reflect the U-shaped distribution of the diurnal albedo as the solar altitude angle exceeds 15 degrees. The scale of the model is about half the length of the day, and the position of the two peaks is closely related to the moment of sunrise, which reflects the asymmetry of the two peaks of the ice surface albedo. This study provides a basis for the development of parameterization schemes of diurnal variation of lake ice albedo in semi-arid cold regions.
关键词	SPECTRAL REFLECTANCE SHALLOW LAKES SEA-ICE SNOW GLACIER
英文关键词	lake ice; ice surface albedo; statistical models; Wuliangsuhai Lake; semi-arid cold regions
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000689970400001
来源期刊	REMOTE SENSING
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/254657
作者单位	[Li, Zhijun; Wang, Qingkai; Tang, Mingguang; Lu, Peng] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116023, Peoples R China; [Li, Guoyu] Northwest Inst Ecoenvironm & Resources, Chinese Acad Sci, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Lepparanta, Matti] Univ Helsinki, Inst Atmospher & Earth Sci, Helsinki 00014, Finland; [Huotari, Jussi; Arvola, Lauri] Univ Helsinki, Fac Biol & Environm Sci, Ecosyst & Environm Res Programme, Lammi Biol Stn, Lammi 16900, Finland; [Shi, Lijuan] Inst Remote Sensing & Digital Earth, Chinese Acad Sci, Lab Digital Earth Sci, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhijun,Wang, Qingkai,Tang, Mingguang,et al. Diurnal Cycle Model of Lake Ice Surface Albedo: A Case Study of Wuliangsuhai Lake[J]. 中国科学院西北生态环境资源研究院,2021,13(16).
APA	Li, Zhijun.,Wang, Qingkai.,Tang, Mingguang.,Lu, Peng.,Li, Guoyu.,...&Shi, Lijuan.(2021).Diurnal Cycle Model of Lake Ice Surface Albedo: A Case Study of Wuliangsuhai Lake.REMOTE SENSING,13(16).
MLA	Li, Zhijun,et al."Diurnal Cycle Model of Lake Ice Surface Albedo: A Case Study of Wuliangsuhai Lake".REMOTE SENSING 13.16(2021).