1. Marine and coastal remote sensing
Algeria national capabilities
The ALSAT microsatellite programme

2. Remote sensing are becoming a cost-effective techniques
Computer technology,
Information networks,
improvements in sensing systems for satellites.

3. Satellite imagery can 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 color and/or temperature.

4. These observations can be used for activities such as
environmental monitoring of sensitive coastal zones,
hazards assessment, and
management of fishing fleets.

5. Small satellites are enabling developing countries to acces space technology
AlSat-1 (Algerian Satellite), an enhanced microsatellite 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-.

6. ALSAT-1 CARACTERISTICS
Earth observation Microsatellite
Size: 60 x 60 x 60 cm
Mass: 90 kg
Lifetime: years
Launch Date : 28 Novembre (Plesetsk Cosmodrome, Russia)
Orbit: 680 km (sun-synchronous)
Inclination: 98.1°
Time : 9h30
Operated by: CNTS (Centre National des
Techniques spatiales)

7. AlSat-1

8. Number of Pixels: 10200/camera Resolution: 32m
Spectral Bands
Green (0, 523 – 0, 605 µm)
Red (0, 629 – 0,690 µm)
Near Infrared (0, 774 – 0, 900 µm)
Number of Pixels: 10200/camera
Resolution: 32m
Image size: 600 x 560 km ( km²)
Observation: Only 3 images to observe km Algerian coast

10. Trichromie d’Images brutes Alsat-1 prises
le 15 juillet 2003 à 9h 27’

11. Image traitée Alsat-1 du 18 Août 2003 à 9h 37’
Trace apparente de 8 Km de long
Image traitée Alsat-1 du 18 Août à 9h 37’

12. Détection de la pollution au niveau du port Arzew El Djedid
Image Alsat-1 de Février 2004

13. Détection des rejets
Image Alsat-1 du 09 Août 2004

14. Image Alsat-1 du 09 Août 2004

15. Image Alsat-1 du 06 Août 2004

16. O. Seybouse
O. Mafragh
Image Alsat-1 du 06 Août 2004

17. Pollution au niveau de l’embouchure de l’oued el Harrach
Image ALSAT-1 du 10 mars 2003 de la baie d’Alger

18. La circulation dans la Baie d’Arzew
ALSAT-1
25 CN
55CN
La circulation dans la Baie d’Arzew
Image ALSAT-1 du 01/03/2003

19. ALSAT-1
25 CN
55CN
Image ALSAT-1 du 26/08/2003

20. ALSAT-1
25 CN
55CN
Image ALSAT-1 du 31/08/2003

21. 25 CN
55CN
Image ALSAT-1 du 21/09/2003

22. 25 CN
55CN
Image ALSAT-1 du 30/11/2003

23. ALSAT-1
25 CN
55CN
Image ALSAT-1 du 13/12/2003

24. Circulation générale du 26/08/03 au 13/12/03
Arzew

25. Conclusion
Alsat-1 products are free of charge for the marine science community and to the end users
Alsat-1 products along with products of other satellites of the DMC will be used as part of the national marine information database.
marine science community is actively participating in the calibration of Alsat-2 senors