Meris Surface Pressure and Cloud Flag: Present Status and Improvements
نویسندگان
چکیده
This paper deals with the verification, consistency analysis and potential improvements of the surface pressure product. Pressure determination is based on the absorption in the Oxygen A band and is very sensitive to the spectral characterisation of MERIS. We describe how, thanks to programmable capability of MERIS, the spectral characterisation of MERIS was done using the pressure retrieval and what is the optimal location for the Oxygen absorption band. Some recommendations are given and exemplified for the improvement of the image quality of the product. The pressure is also used for classification purposes. We show the potential use of the pressure for the detection of thin clouds (cirrus) and/or high altitude dust transport over ocean.
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