27th Conference on Hurricanes and Tropical Meteorology


High Resolution Airborne Radar Measurements of Hurricane Isabel

Robert F. Contreras, University of Massachusetts, Amherst, MA; and D. Esteban Fernandez, P. S. Chang, and P. G. Black

The Imaging Wind and Rain Airborne Profiler (IWRAP) is a dual-frequency, conically-scanning Doppler radar that measures high resolution profiles of rain's effective reflectivity Ze and Doppler velocity, as well as surface wind vectors via scatterometry. IWRAP was flown aboard a NOAA WP-3D aircraft during the 2003, 2004, and 2005 hurricane seasons as part of the ONR's Coupled Boundary Layers Air-Sea Transfer (CBLAST) experiment, NASA's Ocean Vector Winds research, and the NOAA/NESDIS Ocean Winds and Rain experiments. We will start with a description of IWRAP and its capabilities. Following this we will introduce a new dataset available to the CBLAST community. We will finish with high resolution radar observations of Hurricane Isabel with an emphasis on the 3-D structure of the storm, especially in the atmospheric boundary layer (ABL). In particular, IWRAP will be shown to be effective at resolving linear boundary layer structures.

extended abstract  Extended Abstract (440K)

wrf recording  Recorded presentation

Session 10C, Special Session: CBLAST Hurricane III
Wednesday, 26 April 2006, 3:30 PM-5:45 PM, Regency Grand BR 1-3

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