Abstract
Abstract Atmospheric and surface parameters retrieved from observations by satellites in the TIROS-N/NOAA series provide valuable information for meteorological investigations in the data-sparse polar regions. A pattern-recognition method for processing these observations, the Improved Initialization Inversion (3I) system, has been developed at Laboratoire de Meteorologie Dynamique (LMD). This technique has been applied to several satellite passes, and the capability of the TIROS-N Operational Vertical Sounder (TOVS) to provide a description of mesoscale atmospheric phenomena has been demonstrated. In addition, the Special Sensor Microwave/Imager (SSM/I) launched in June 1987 on a satellite in the United States Defense Meteorological Satellite Program (DMSP) allows a new insight into the mesoscale structures of cyclones over the ocean by providing estimates of atmospheric water vapor, cloud water and surface winds. TOVS and SSM/I-inferred parameters are presented and discussed for several cases, including polar lows, and the mutual contribution of these two types of satellite data is shown.
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