干旱区生态环境知识资源中心(Arid): Mapping regional surface water volume variation in reservoirs in northeastern Brazil during 2009-2017 using high-resolution satellite images

Arid

DOI	10.1016/j.scitotenv.2021.147711
	Mapping regional surface water volume variation in reservoirs in northeastern Brazil during 2009-2017 using high-resolution satellite images
	Zhang, Shuping; Foerster, Saskia; Medeiros, Pedro; de Araujo, Jose Carlos; Duan, Zheng; Bronstert, Axel; Waske, Bjoern
通讯作者	Zhang, SP (corresponding author), German Res Ctr Geosci GFZ, Remote Sensing & Geoinformat Sect, Potsdam, Germany.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	789
英文摘要	The multiple-year drought that started in 2011 and reached climax in 2015 was the most severe and prolonged one in the semiarid northeastern (NE) Brazil in recent decades. This study aimed to investigate the reservoir surface water volume (SWV) variation in NE Brazil from 2009 to 2017 in four representative regions covering a total area of approximately 10,000 km2 there and encompassing 2,140 reservoirs (areas range from 0.003 to 21 km2). High-resolution (10 m) digital elevation models (DEMs) were generated from the TanDEM-X data acquired during October-December 2015 to represent the reservoirs' bathymetric maps. The water extents in the reservoirs were delineated from high-resolution (6.5 m) RapidEye images acquired during 2009-2017. The combination of the aforementioned two variables yielded reservoir SWV with an accuracy of 0.64 x 106-1.06 x 106 m3, corresponding to 3.1%-5.6% of the maximum SWV in the reservoirs. The results showed that: 1) 81%-99% of the reservoirs in the four regions were from the groups with maximum water extent <50 ha and contributed 2%-59% of the regional reservoir SWV. In contrast, 0.6%-20% of the reservoirs were from the group of >50 ha and contributed 40%-98% to the regional SWV; 2) From 2009 to 2017, reservoir SWV in the four regions decreased at the rates of 2.3 x 106-17.8 x 106 m3/year; and 3) The SWV in the reservoirs responded differently to the regional terrestrial water budget, i.e. the differences between precipitation and evapotranspiration (P-ET). This study filled the data gap of bathymetric maps for the 2140 reservoirs, regardless of their sizes and macrophyte coverage. The SWV variations derived in those reservoirs over a period covering the recent drought can support better pre-paredness for drought in NE Brazil and better understanding of the regional hydrology in semi-arid regions. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Bathymetric maps Regional SWV High resolution mapping TanDEM-X RapidEye NE Brazil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000677551200006
WOS关键词	TANDEM-X ; TIME-SERIES ; HYDROLOGICAL DROUGHT ; LAND-COVER ; STORAGE ; MODEL ; ELEVATION ; SENTINEL-2 ; PREDICTION ; MISSION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364563
作者单位	[Zhang, Shuping; Foerster, Saskia] German Res Ctr Geosci GFZ, Remote Sensing & Geoinformat Sect, Potsdam, Germany; [Zhang, Shuping] Uppsala Univ, Dept Earth Sci, Uppsala, Sweden; [Medeiros, Pedro] Fed Inst Educ Sci & Technol Ceara IFCE, Maracanau, Brazil; [de Araujo, Jose Carlos] Fed Univ Ceara UFC, Dept Agr Engn, Fortaleza, Ceara, Brazil; [Duan, Zheng] Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden; [Bronstert, Axel] Univ Potsdam, Inst Environm Sci & Geog, Potsdam, Germany; [Waske, Bjoern] Univ Osnabruck, Remote Sensing Working Grp, Inst Comp Sci, Osnabruck, Germany
推荐引用方式 GB/T 7714	Zhang, Shuping,Foerster, Saskia,Medeiros, Pedro,et al. Mapping regional surface water volume variation in reservoirs in northeastern Brazil during 2009-2017 using high-resolution satellite images[J],2021,789.
APA	Zhang, Shuping.,Foerster, Saskia.,Medeiros, Pedro.,de Araujo, Jose Carlos.,Duan, Zheng.,...&Waske, Bjoern.(2021).Mapping regional surface water volume variation in reservoirs in northeastern Brazil during 2009-2017 using high-resolution satellite images.SCIENCE OF THE TOTAL ENVIRONMENT,789.
MLA	Zhang, Shuping,et al."Mapping regional surface water volume variation in reservoirs in northeastern Brazil during 2009-2017 using high-resolution satellite images".SCIENCE OF THE TOTAL ENVIRONMENT 789(2021).