Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/isprs-archives-XLII-3-W2-1-2017 |
INTEGRATION OF SATELLITE RAINFALL DATA AND CURVE NUMBER METHOD FOR RUNOFF ESTIMATION UNDER SEMI-ARID WADI SYSTEM | |
Adam, Eltayeb O.1; Abd Elbasit, Mohamed A. M.2; Solomon, Tesfamichael1; Ahmed, Fethi3 | |
通讯作者 | Adam, Eltayeb O. |
会议名称 | 37th International Symposium on Remote Sensing of Environment |
会议日期 | MAY 08-12, 2017 |
会议地点 | Tshwane, SOUTH AFRICA |
英文摘要 | The arid and semi-arid catchments in dry lands in general require a special effective management as the scarcity of resources and information which is needed to leverage studies and investigations is the common characteristic. Hydrology is one of the most important elements in the management of resources. Deep understanding of hydrological responses is the key towards better planning and land management. Surface runoff quantification of such ungauged semi-arid catchments considered among the important challenges. A 7586 Km (2) catchment under investigation is located in semi-arid region in central Sudan where mean annual rainfall is around 250 mm and represent the ultimate source for water supply. The objective is to parameterize hydrological characteristics of the catchment and estimate surface runoff using suitable methods and hydrological models that suit the nature of such ungauged catchments with scarce geospatial information. In order to produce spatial runoff estimations, satellite rainfall was used. Remote sensing and GIS were incorporated in the investigations and the generation of landcover and soil information. Five days rainfall event (50.2 mm) was used for the SCS CN model which is considered the suitable for this catchment, as SCS curve number (CN) method is widely used for estimating infiltration characteristics depending on the landcover and soil property. Runoff depths of 3.6, 15.7 and 29.7 mm were estimated for the three different Antecedent Moisture Conditions (AMC-I, AMC-II and AMC-III). The estimated runoff depths of AMCII and AMCIII indicate the possibility of having small artificial surface reservoirs that could provide water for domestic and small household agricultural use. |
英文关键词 | Hydrology Ungauged Water harvest Spatial variation Catchment TRMM |
来源出版物 | 37TH INTERNATIONAL SYMPOSIUM ON REMOTE SENSING OF ENVIRONMENT |
ISSN | 2194-9034 |
出版年 | 2017 |
卷号 | 42-3 |
期号 | W2 |
页码 | 1-7 |
EISBN | ***************** |
出版者 | COPERNICUS GESELLSCHAFT MBH |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | South Africa |
收录类别 | CPCI-S |
WOS记录号 | WOS:000466925400001 |
WOS类目 | Environmental Sciences ; Geography, Physical ; Remote Sensing |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Remote Sensing |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/306143 |
作者单位 | 1.Univ Johannesburg, Fac Sci, Dept Geog Environm Management & Energy Studies, Auckland Pk Kingsway Campus, Johannesburg, South Africa; 2.Agr Res Council, Inst Soil Climate & Water, Pretoria, South Africa; 3.Univ Witwatersrand, Sch Geog Archaeol & Environm Studies, Johannesburg, South Africa |
推荐引用方式 GB/T 7714 | Adam, Eltayeb O.,Abd Elbasit, Mohamed A. M.,Solomon, Tesfamichael,et al. INTEGRATION OF SATELLITE RAINFALL DATA AND CURVE NUMBER METHOD FOR RUNOFF ESTIMATION UNDER SEMI-ARID WADI SYSTEM[C]:COPERNICUS GESELLSCHAFT MBH,2017:1-7. |
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