An information system for the utility of the ephemeral tributaries west of the Nile Valley in Sudan. Based on remote sensing and geological techniques
- Univ. of Khartoum (Sudan)
- National Remote Sensing Centre, Khartoum (Sudan)
- Univ. of Khartous (Sudan); and others
Interpretation of landsat MSS and TM satellite and NOAA-AVHRR images, climatological data and conventional geological methods were integrated in this study to arrive at a rigorous scientific geoinformation system that could assist the on-going endeavours to rehabilitate areas west of the Nile Valley. The study area, which repetitively suffered severe spells of drought, extends between latitudes 12{degrees}N-18{degrees}N and longitudes 27{degrees}E-32{degrees}E. The area considered abodes four major ephemeral tributaries of the River Nile, they are Wadi Howar, Wadi El Milk, Wadi El Mugaddam and Khor Abu Habil. Visual interpretation of remotely sensed data coupled with geological investigations revealed that these ephemeral tributaries are structurally controlled and their lower courses are buried under extensive sand sheets, that block their channels from reaching the Nile Valley. Sites where those tributaries disappear could constitute huge reservoirs of groundwater that could be utilized to harness desert encroachment and to plan rehabilitation projects. It is envisaged that, surface and subsurface hydrological engineering constructions in favourable sites, across those tributaries may lead to permanent surface water ponding. The performed study demonstrated the possibility of combating the environmental degradation on the area under consideration through carefully designed rehabilitation and development projects based on the integration of available data in a geoinformation system.
- OSTI ID:
- 263428
- Report Number(s):
- CONF-960203-; TRN: 96:002807-0011
- Resource Relation:
- Conference: 11. thematic conference on geologic remote sensing, Las Vegas, NV (United States), 27-29 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the eleventh thematic conference - geologic remote sensing: Practical solutions for real world problems. Volume 2; PB: 730 p.
- Country of Publication:
- United States
- Language:
- English
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