干旱区生态环境知识资源中心(Arid): Hydrological studies in the White Nile State in Sudan

Arid

DOI	10.1016/j.ejrs.2016.12.004
	Hydrological studies in the White Nile State in Sudan
	Salih, Abdelrahim A. M.; Hamid, Amna Ahmed
通讯作者	Salih, AAM
来源期刊	EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES
ISSN	1110-9823
EISSN	2090-2476
出版年	2017
卷号	20 页码:S31-S38
英文摘要	The present study was aimed to study the hydrological system in the arid areas of White Nile State, Sudan using remote sensing and GIS tools. Information on topography and soils had been extracted using ASTR, Digital Elevation Model (DEM), with 90 m horizontal resolution and Sudan General Soil Map with scale 1: 25,000 using digitized method to form the GIS database. Land use/cover information was derived from remotely sensed data of Land sat Thematic Mapper of the year 2014. The vegetation cover was estimated using the normalized different vegetation index (NDVI). One sub-basin was delineated using a Digital Elevation Model (DEM) and the total acreage in different slope classes was estimated. These maps were used as input variables to derive a modified Soil Conservation Service (SCS) runoff curve number. The SCS runoff curve number model was applied to estimate the runoff depth for individual storm as (return period) event and summed up to derive the annual runoff potential for the sub-basin. All morphometric and hydrological characteristics for the elected sub-basin were extracted and illustrated and given in different tables, which include the stream numbers, the shape factor of the basin, the slope condition of the basin, the streams lengths, and the basin area and so on. The total surface water (runoff) in depth and volume potential for harvesting is 1.507 mm (depth) and 309,078.09 vol m(3). The results demonstrate the capability of GIS and its application for water harvesting planning over larger semiarid areas. (C) 2017 National Authority for Remote Sensing and Space Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-ncnd/4.0/).
英文关键词	Arid and semiarid Hydrological modelling White Nile State Sudan Remote sensing
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000396610600005
WOS类目	Environmental Sciences ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332083
作者单位	[Salih, Abdelrahim A. M.] Univ Khartoum, Fac Geog & Environm Sci, Dept GIS & Remote Sensing, Khartoum, Sudan; [Hamid, Amna Ahmed] Natl Res Ctr, Remote Sensing Author & Semiol RSSA, Khartoum, Sudan
推荐引用方式 GB/T 7714	Salih, Abdelrahim A. M.,Hamid, Amna Ahmed. Hydrological studies in the White Nile State in Sudan[J],2017,20:S31-S38.
APA	Salih, Abdelrahim A. M.,&Hamid, Amna Ahmed.(2017).Hydrological studies in the White Nile State in Sudan.EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES,20,S31-S38.
MLA	Salih, Abdelrahim A. M.,et al."Hydrological studies in the White Nile State in Sudan".EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES 20(2017):S31-S38.