14 December 1998 Atmospheric water vapor over the Mediterranean Sea: using a physical model and satellite microwave data
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Abstract
Knowledge of water cycle in the atmosphere is very useful for several climatological and meteorological applications. This work presents a forward model of atmospheric emission in clear sky conditions, over Mediterranean sea. Solving a polarized radiative transfer scheme, brightness temperatures at the top of atmosphere were calculated. By fitting such temperatures against those measured by he SSM/I microwave radiometer effective vertical profiles of atmospheric water vapor were retrieved. Eventually, total precipitable water values were estimated. These values were compared with those obtained through statistical well-known algorithms from SSM/I brightness temperatures. The reported procedure was applied on a dataset, made up of Mediterranean scenes acquired during summer. The present work showed the feasibility of obtaining total precipitable water estimates as accurate as statistical ones; moreover, this approach provides information about the effective vertical atmospheric temperature, pressure and water vapor profiles, that allows this procedure to be more flexible and reliable, both form a spatial and a temporal point of view. Therefore, we characterized the presented research, calibrating our procedure for the Mediterranean area: a relative poor region, as far as field observation are concerned.
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Stefano Nativi, Stefano Migliorini, Dino Giuli, "Atmospheric water vapor over the Mediterranean Sea: using a physical model and satellite microwave data", Proc. SPIE 3495, Satellite Remote Sensing of Clouds and the Atmosphere III, (14 December 1998); doi: 10.1117/12.332677; https://doi.org/10.1117/12.332677
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