干旱区生态环境知识资源中心(Arid): Remote sensing products for predicting actual evapotranspiration and water stress footprints under different land cover

Arid

DOI	10.1016/j.jclepro.2020.121818
	Remote sensing products for predicting actual evapotranspiration and water stress footprints under different land cover
	Jahangir, Mohammad Hossein; Arast, Mina
通讯作者	Jahangir, MH
来源期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
EISSN	1879-1786
出版年	2020
卷号	266
英文摘要	The changes of evapotranspiration (ET) in temporal periods should be evaluated and monitored, because of its importance in the management of water stresses. For this purpose, the actual ET rate and water shortage of Qom basin-Iran were estimated using Surface Energy Balance System-Iran (SEBS-Iran) with MODIS images of two wet and dry years (2000 and 2014 respectively) selected from 1986 to 2018. The results were compared with the measured stations data and MOD16 model. The NASA MODIS MOD16A2 operational product provides 500-m 8-day global ET estimates extending. The correlation results showed a good relationship between estimated and measured ET, however, SEBS in the wet year showed better performance compared to the MOD16 (R-2 = 0.93). In both wet and dry years, the maximum mean water stress was observed in both SEBS-Iran and MOD16 in arid and agricultural lands, respectively. The SEBS-Iran showed significant differences that the maximum and minimum water stress were observed in 2014 in barren land (0.78) and urban areas (0.44), respectively. In barrer lands, the water stress of MOD16 is lower than real value, which shows the weak performance of MOD16 in the arid area compared to the SEBS-Iran. An increase in normalized difference vegetation index (NDVI) and land surface temperature (LST) values led to increasing water stress. There is a correlation of water stress with the indices in both years (R = 0.74). In 2000, 2014, NDVI ranges were 0.31-0.68 and 0.15-0.53, respectively. In a dry year, by decreasing normalized difference moisture index (NDMI), water stress rate was increased. The result showed that in determining ET and water stress in dry and semi-dry areas, SEBS-Iran model demonstrates good performance in presenting more accurate and close to real results. Hence, SEBS-Iran model can be used in the field of water policymaking and management.
英文关键词	Energy balance equation SEBS-Iran Sensitivity analysis Simulation Water balance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000542424000012
WOS关键词	BALANCE SYSTEM SEBS ; SURFACE EVAPOTRANSPIRATION ; METRIC MODELS ; AREA ; IMPROVEMENT ; ALGORITHM ; FLUXES ; SCALE ; BASIN ; MOD16
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324818
作者单位	[Jahangir, Mohammad Hossein] Univ Tehran, Fac New Sci & Technol, Renewable Energies & Environm Dep, Tehran, Iran; [Arast, Mina] Univ Kashan, Fac Nat Resources & Earth Sci, Dept Desert Control, Kashan, Iran
推荐引用方式 GB/T 7714	Jahangir, Mohammad Hossein,Arast, Mina. Remote sensing products for predicting actual evapotranspiration and water stress footprints under different land cover[J],2020,266.
APA	Jahangir, Mohammad Hossein,&Arast, Mina.(2020).Remote sensing products for predicting actual evapotranspiration and water stress footprints under different land cover.JOURNAL OF CLEANER PRODUCTION,266.
MLA	Jahangir, Mohammad Hossein,et al."Remote sensing products for predicting actual evapotranspiration and water stress footprints under different land cover".JOURNAL OF CLEANER PRODUCTION 266(2020).