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Restitution des propriétés des aérosols et validation

Abstract : Aerosols affect the radiation budget and cloud processes. Aerosol properties can be measured at ground level with good accuracy only at local scale. Satellites allow for monitoring the highly variable aerosol fields at a reasonable spatial and temporal resolution. Two instruments and their aerosol retrieval algorithms are used. These algorithms allow for the retrieval of aerosol optical depth over both ocean and land: one was applied to the AATSR data to retrieve aerosol optical depth in the visible domain while the other was designed to retrieve aerosol optical properties from OMI in the UV range. These algorithms have been developed and tested over North Western Europe and the Amazon Basin. The case studies presented a collocation between high aerosol optical depth values and heavily industrialized areas and downwind from the local sources large spatial gradients of the aerosol concentration. Results compare well with both ground based measurements and other spaceborne instruments.
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Submitted on : Monday, September 10, 2012 - 2:48:32 PM
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  • HAL Id : tel-00730509, version 1



Lyana Curier. Restitution des propriétés des aérosols et validation. Océan, Atmosphère. Université Blaise Pascal - Clermont-Ferrand II, 2008. Français. ⟨NNT : 2008CLF21848⟩. ⟨tel-00730509⟩



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