Extended Abstract (432K)12A.6
Tropical Cyclone Intensity Estimation Using The NOAA-KLM Advanced Microwave Sounding Unit (AMSU): Part II: A Multi-Channel Approach
Brian Kabat, Univ. of Wisconsin/CIMSS, Madison, WI; and C. S. Velden and K. F. Brueske
Operational testing and evaluation of the current CIMSS AMSU Tropical Cyclone Intensity Estimation Algorithm (Brueske and Velden, 2001) has shown tremendous skill over the past two years utilizing the 54.9 GHz channel to detect the upper tropospheric warm anomaly associated with TC's. During the 2001 TC season the 55.5 GHz channel was examined to determine its relationship to the warm anomaly and possible contribution toward improving the current single-channel algorithm. In this paper, the authors discuss the benefits of exploiting the unique features of this channel in analyzing the strength of the warm anomaly and how the 55.5 GHz signature may be particularly valuable during periods of intense convection and precipitation contamination. In addition, the authors examine possible techniques and operational implications of monitoring sub-tropical and extra-tropical transition of TC's using this channel. Plans are currently underway to transition toward a multi-channel TC intensity estimation algorithm for evaluation during the 2002 season.
Session 12A, Tropical Cyclone Observations and Structure I (Parallel with Sessions 12B, 12C, and 12D)
Thursday, 2 May 2002, 8:30 AM-10:30 AM
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