Estimation of Growing Season Daily ET in the Middle Stream and Downstream Areas of the Heihe River Basin Using HJ-1 Data

	Estimation of Growing Season Daily ET in the Middle Stream and Downstream Areas of the Heihe River Basin Using HJ-1 Data
	Li, Zhansheng 1; Jia, Li 1; Hu, Guangcheng 1; Lu, Jing 1; Zhang, Jingxiao 1; Chen, Qiting 1; Wang, Kun 1
刊名	IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
	2015
卷号	12 期号:5 页码:3548-3564
关键词	Evapotranspiration (ET) Heihe River Basin Heihe Watershed Allied Telemetry Experimental Research (HiWATER) heterogeneity Surface Energy Balance System (SEBS)
通讯作者	Jia, L (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.
英文摘要	Spatial mapping of evapotranspiration (ET) is specifically critical for the semi-arid inland river basin with great heterogeneity in land-cover types. This letter estimates the spatial distribution of daily ET over the middle stream and downstream areas of the Heihe River Basin during the growing season of 2012 by using the Surface Energy Balance System algorithm with land surface temperature at high spatial resolution (300 m) derived from observations by the Chinese satellite HJ-1. The results demonstrate that ET estimates are consistent with ground-based measurements collected during the Heihe Watershed Allied Telemetry Experimental Research (HiWATER) with acceptable accuracy. The magnitude of daily ET in the downstream area is obviously lower than that in the middle stream area. Further analysis based on classification maps shows that there is significant temporal-spatial heterogeneity of daily ET over different land-cover surfaces and also within the same vegetation type. The temporal variation of ET in the middle stream area has clear seasonality with an obvious peak in July, whereas it is flat in the downstream area due to the dominating arid-region vegetation species and low soil water content in growing season. In addition, because of the abundant irrigation in the maize and irrigated orchard fields, the daily ET values of them are higher than that of wetland and even comparable with that of water surface in the middle stream area of the Heihe River Basin.
研究领域[WOS]	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000351412200006
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38222]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Li, Zhansheng 2.Jia, Li 3.Hu, Guangcheng 4.Lu, Jing 5.Zhang, Jingxiao 6.Chen, Qiting 7.Wang, Kun] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China 8.[Li, Zhansheng 9.Zhang, Jingxiao 10.Chen, Qiting] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhansheng,Jia, Li,Hu, Guangcheng,et al. Estimation of Growing Season Daily ET in the Middle Stream and Downstream Areas of the Heihe River Basin Using HJ-1 Data[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2015,12(5):3548-3564.
APA	Li, Zhansheng.,Jia, Li.,Hu, Guangcheng.,Lu, Jing.,Zhang, Jingxiao.,...&Wang, Kun.(2015).Estimation of Growing Season Daily ET in the Middle Stream and Downstream Areas of the Heihe River Basin Using HJ-1 Data.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,12(5),3548-3564.
MLA	Li, Zhansheng,et al."Estimation of Growing Season Daily ET in the Middle Stream and Downstream Areas of the Heihe River Basin Using HJ-1 Data".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 12.5(2015):3548-3564.