مجلة العلوم الانسانية
Volume 7, Numéro 11, Pages 53-72
2007-05-08
Micro Satellites For Coastal Resources Management The Alsat-1 Case.
Authors : Guerfi Mokhtar .
Abstract
Remote sensing techniques are becoming cost-effective. Continual progress is made in computer technology, in information networks including improvements in sensing systems for satellites. Satellite imagery can be used for observing marine features such as: large-scale circulation, currents, River outflow and water quality. This can be visualized by highlighting variations in water colour and/or temperature. These observations can be used for activities such as: environmental monitoring of sensitive coastal zones, hazards assessment, and management of fishing fleets. Small satellites are enabling developing countries to have access to space technology. AlSat-1 (Algerian Satellite), an enhanced micro satellite is Algeria's first national satellite. It has been designed and constructed by SSTL (Surrey Space Technology Laboratory) at the Surrey Space Centre (UK). ALSAT-1 is part of an international collaboration of Earth observation satellites specifically designed for disaster monitoring, called Disaster Monitoring Constellation – DMC-.Alsat-1 is equipped with two banks of cameras giving a total of 600km field of view at 32 meters ground sampling distance in three spectral bands: Red, Green and Near Infra-Red. Alsat-1 products were used in different parts of the Algeria 1200 km coastline. The results are very interesting and encouraging. The paper will present an overview of these results.
Keywords
Micro satellites ;coastal resources management;ALSAT-1 case
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