Study of Atmospheric Turbidity in a Northern Tropical Region Using Models and Measurements of Global Solar Radiation

Autor: Abdanour Irbah, Fatima Chouireb, Julien Delanoë, Mohamed Mimouni, Mohamed Zaiani, Djelloul Djafer, Dimitris Kaskaoutis, Sabrina Belaid Boualit, Constantino Listowski

Publikováno v: Remote Sensing, Vol 13, Iss 2271, p 2271 (2021)
Remote Sensing
Remote Sensing, MDPI, 2021, 13, pp.2271. ⟨10.3390/rs13122271⟩
Remote Sensing; Volume 13; Issue 12; Pages: 2271

Radiative transfer in the Earth’s atmosphere under clear-sky conditions strongly depends on turbidity due to aerosols and hydrometeors. It is therefore important to know its temporal radiative properties for a given site when the objective is to op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1d10ac12cbbe786a442c473564206de
https://doi.org/10.3390/rs13122271

A New Solar Spectrum from 656 to 3088 nm

Autor: Slimane Bekki, Mustapha Meftah, David Bolsée, Gaël Cessateur, Dominique Sluse, Alain Sarkissian, Alain Hauchecorne, Abdanour Irbah, Nuno Pereira, Luc Damé, Djelloul Djafer

Publikováno v: Solar Physics
Solar Physics, Springer Verlag, 2017, 292 (art. 101), ⟨10.1007/s11207-017-1115-2⟩
Solar Physics, 2017, 292 (art. 101), ⟨10.1007/s11207-017-1115-2⟩

The solar spectrum is a key parameter for different scientific disciplines such as solar physics, climate research, and atmospheric physics. The SOLar SPECtrometer (SOLSPEC) instrument of the Solar Monitoring Observatory (SOLAR) payload onboard the I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9571d0309bf319d50433d2bc2dc4fb80
https://hal-insu.archives-ouvertes.fr/insu-01571600

Variations of Solar Oblateness with the 22 yr Magnetic Cycle Explain Apparently Inconsistent Measurements

Autor: Abdanour Irbah, Luc Damé, Djelloul Djafer, R. Mecheri

Publikováno v: The Astrophysical Journal. 875:L26

The solar oblateness results from distortion processes due to several phenomena inside the Sun but also induced by the centrifugal potential of the surface rotation. This fundamental parameter is therefore of great scientific interest, but its measur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e4b6a46c0428566a0a4a2fb6a803cc8
https://doi.org/10.3847/2041-8213/ab16e2

How mission requirements affect observations: case of the PICARD mission

Autor: Djelloul Djafer, Alain Hauchecorne, Abdanour Irbah, Luc Damé, Mustapha Meftah

Publikováno v: Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Jun 2016, Edinburgh, United Kingdom. pp.99044G, ⟨10.1117/12.2232028⟩

International audience; The scientific objectives of a space mission translate into instrumental developments and satellites operations to observe the astronomical objects of interest. The payload in its space environment is however subject to import

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47f16ff324769b9a0ae38ffa219c2fb8
https://hal-insu.archives-ouvertes.fr/insu-01345786

Identification of Sunspots on Full-Disk Solar Images Using Wavelet Analysis

Autor: Djelloul Djafer, Mustapha Meftah, Abdanour Irbah

Publikováno v: Solar Physics
Solar Physics, Springer Verlag, 2012, 281 (2), pp.863-875. ⟨10.1007/s11207-012-0109-3⟩
Solar Physics, 2012, 281 (2), pp.863-875. ⟨10.1007/s11207-012-0109-3⟩

International audience; A new method to detect sunspots on full-disk solar images, recorded in an optical wide spectral band and in the line of Ca ii K1, is presented. It is based on the compact wavelet transform and a process that automatically iden

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e34f5dd69877544c0c8db9b5883627d8
https://doi.org/10.1007/s11207-012-0109-3