气候变化领域集成服务门户(CCPortal): Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data

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DOI	10.1007/s11434-009-0044-3
	Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data
	Che Tao; Li Xin; Jin Rui
发表日期	2009
ISSN	1001-6538
EISSN	1861-9541
起始页码	2294
结束页码	2299
卷号	54 期号:13
英文摘要	The Qinghai Lake is the largest inland lake in China. The significant difference of dielectric properties between water and ice suggests that a simple method of monitoring the Qinghai lake freeze-up and break-up dates using satellite passive microwave remote sensing data could be used. The freeze-up and break-up dates from the Qinghai Lake hydrological station and the MODIS L1B reflectance data were used to validate the passive microwave remote sensing results. The validation shows that passive microwave remote sensing data can accurately monitor the lake ice. Some uncertainty comes mainly from the revisit frequency of satellite overpass. The data from 1978 to 2006 show that lake ice duration is reduced by about 14-15 days. The freeze-up dates are about 4 days later and break-up dates about 10 days earlier. The regression analyses show that, at the 0.05 significance level, the correlations are 0.83, 0.66 and 0.89 between monthly mean air temperature (MMAT) and lake ice duration days, freeze-up dates, break-up dates, respectively. Therefore, inter-annual variations of the Qinghai Lake ice duration days can significantly reflect the regional climate variation.
英文关键词	lake ice; passive microwave remote sensing; freeze-up; break-up; Qinghai Lake; climate change
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS关键词	ICE COVER ; CLIMATE ; SNOW
WOS记录号	WOS:000267669100022
来源期刊	CHINESE SCIENCE BULLETIN
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/241006
作者单位	[Che Tao; Li Xin; Jin Rui] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 710000, Peoples R China
推荐引用方式 GB/T 7714	Che Tao,Li Xin,Jin Rui. Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data[J]. 中国科学院西北生态环境资源研究院,2009,54(13).
APA	Che Tao,Li Xin,&Jin Rui.(2009).Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data.CHINESE SCIENCE BULLETIN,54(13).
MLA	Che Tao,et al."Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data".CHINESE SCIENCE BULLETIN 54.13(2009).