Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Retrieval algorithm for surface emissivity at AMSU-A window channel frequencies from AMSU-A data

This algorithm retrieves the surface emissivity at window channels of the Advanced Microwave Sounding Unit (AMSU) radiometers in polar regions. The instruments are on the new generation satellites of National Oceanic and Atmospheric administration (NOAA-15, 16, 17).

The method assumes hypothetical surfaces with emissivities 0 and 1 and simulates brightness temperatures at the top of the atmosphere using atmospheric profiles, e.g., from the European Centre for Medium Range Weather Forecasts (ECMWF), as input for a radiative transfer model. Surface emissivity can then be calculated from simulated brightness temperatures and satellite-measured brightness temperatures.

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University of Bremen, Institute of Environmental Physics
Otto-Hahn-Allee 1
28359 Bremen
Germany
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