Micro satellites for coastal resources management The ALSAT-1 case.

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,
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.

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Guerfi Mokhtar

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