From the late 1980s the Borne of Meteorology ha been able to monitor tropical cyclone intensity using NOAA (National Oceanographic and Atmospheric Administration) TOVS (TIROS Operational Vertical Sounder) observations received at satellite groundstatioas In Dwain, Melbourne and Perth. These observations pro-vide near-continuous coverage of the tropical oceans surrounding mainland Australia. Ironical cyclones in both the Indian Ocean and Coral Sea basins have been analysed using the Bureau's operational TOTS processing system. Both MSU(microwave sounding unit) and stratospheric MRS (high resolution infested sounder) observations have been employed In estimate the upper-level temperature fields around the tropical cyclones. This note shows that the t()VS retrieval system can define upper-level tropospheric temperature anomaly fields, which then can be related to storm central pressure and maximum wind speed. Thegroand-troth data used in this study generally consisted of operational estimates of storm intensity. Based on these data, temperature anomaly and storm intensity were related in a way that results in regression runes which may be used for operational purposes. This note also briefly examines the capacity of the next generation operational polar-orbiting NOAA sounder, the advanced TOVS (ATOVS) which includes the advanced microwave sounding unit (AMSU) to monitor tropical cyclones. It appears that this sounder has the potential to pros ide an Improved capacity for analysis of these temperature anomalies and hence tropical cyclone intensity.
Marshall et al. (Sun,) studied this question.
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