Session 7B.6 Real-time implementation of tropical cyclone-specific radar data processing algorithms

Saturday, 21 July 2001: 5:15 PM
Colin J. McAdie, NOAA/NWS/TPC, Miami, FL; and P. R. Harasti, P. Dodge, W. C. Lee, S. Murillo, and F. Marks

Presentation PDF (1.6 MB)

In order to better depict the tropical cyclone wind field in the operational environment, the NOAA/Tropical Prediction Center has sought techniques using Doppler radar data in real-time. A cooperative effort with AOML/Hurricane Research Division and NCAR has resulted in significant progress both in developing a methodology whereby radar imagery is used as a proxy for full resolution digital data, and in developing analysis techniques using the proxy data. This methodology will be described. Specific examples are given using the Ground-based velocity track display algorithm, which gives an estimate of the total wind from the single-Doppler velocities, and the Principal Component Analysis center-finding technique, both using data collected during Hurricane Debby, 22 August, 2000. Results are validated against aircraft reconnaissance winds. This work represents a step towards building a complementary suite of algorithms which describes the tropical cyclone wind field.
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