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A new Space Weather Observatory in Tamanrasset

A new Space Weather Observatory in Tamanrasset. Dr T. Abdelatif Solar Physics Division. Centre de recherches en Astronomie, Astrophysique et Géophysique. CRAAG Centre de Recherche Astronomie Astrophysique et Géophysique.

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A new Space Weather Observatory in Tamanrasset

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  1. A new Space Weather Observatory in Tamanrasset Dr T. Abdelatif Solar Physics Division Centre de recherches en Astronomie, Astrophysique et Géophysique

  2. CRAAG Centre de Recherche Astronomie Astrophysique et Géophysique • Created in 1980 fusion of two institutions: the Algiers Observatory (1892) and the IMPGA (1930) • Three main areas of research • Seismology • Geophysics • Astrophysics

  3. Astrophysics CRAAG • Stellar and High Energy Astrophysics Division • Asterosismology • High energy Astrophysics • Stellar variability • Data Analysis • Solar Physics Division • Solar Activity studies • Heliosismology • Ionospheric research • High angular solar resolution

  4. Algiers Observatory

  5. Algiers Observatory (Historic) • 1846 : First observations in Astronomy started in Kouba (Algiers) • 1886 : Construction of the Observatory in Bouzareah: Highest point in Algiers • It is one of the first Observatory in the African continent • Four instruments : • La lunette méridienne de Gautier • La Lunette Coudé de Loewy • L’Astrographe de Gautier • Le télescope de Foucault

  6. AlgiersObservatory

  7. SpaceWeather in Algeria • Thru the ISWI (International Space Weather Initiative) the CRAAG participate to several research programs: • AMBER: One magnetic station in Medea (100 km south of Algiers) • AWESOME: One VLF station near Algiers • INTERMAGNET: One magnetic station in Tamanrasset (1900 Km south of Algiers) • GPS_Africa: one GPS station International GNSS Service in Tamanrasset • Tamanrasset host also a longue range seismic station thru the GEOSCOPE program

  8. Research Unit In Tamanrasset

  9. Scientific Needs Complete ignorance of ionospheric condition in southern Algerian Very few data Proximity to the equatorial electrojet Inside GNSS January 2009

  10. New Space Weather station in Tamanrasset • We have decide to install different instruments to follow up the activity of the sun as well as the ionosphere: • Flare patrol telescope • Radio spectrometer • Digital Ionosonde • TEC and scintillation Monitor • VLF receiver • These instruments will complete the other instruments already in place. • The data will be completed with satellite data • .

  11. Flare Patrol Telescope • Similar to the FMT Hida Observatory in Japan (1992 in Peru in 2009 • Multiple refractors to observe the full disk sun at different wavelengths around H-alpha absorption line and in different modes • 1 arsec resolution with high rate of acquisition. • Synoptic observations and  the three-dimensional velocity field of moving features.

  12. Flare Patrol Telescope Specifications:

  13. CDD Cameras • Resolution 4 MPix 12bit • A frame rate of 7 frames/sec: • Frame selection  • Record a flare event

  14. Others instruments Radio spectrometer: diagnostics of solar activity, such as solar flares and CMEs, instrument type CALISTO Digital Ionosonde: with 4 receivers: capability to mesure ionospheric dopler drift. TEC and scintillation Monitor measure of the TEC and the scintillation of the GPS signal VLF receiver: measurement of the D layer of the Ionosphere.

  15. Déplacement du limbe et de la zone d’analyse au cours de l’année Camera CCD  Zones d’analyse des mouvements du limbe Angle de séparation n Misolfa

  16. Altitude

  17. Tamanrasset Research Unit

  18. City of Tamanrasset -CRAAG

  19. Source NOAA (1961-1990)

  20. New site Assekrem 2.728 m 80 km from Tam

  21. Assekrem

  22. Thankyou

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