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Overview

Impact Assessment of Potential Hurricane Imaging Radiometer (HIRAD) Tropical Cyclone Observations from Aircraft and Satellite Platforms

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Overview

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  1. Impact Assessment of Potential Hurricane Imaging Radiometer (HIRAD) Tropical Cyclone Observations from Aircraft and Satellite Platforms Robbie Hood, Robert Atlas, M.C. Bailey, Peter Black, Shuyi Chen, Christopher Hennon, Mark James, James Johnson, Linwood Jones, Timothy Miller, Christopher Ruf, David Simmons, Karen Stephens, and Eric Uhlhorn

  2. Univ. of Michigan NASA Univ. of Alabama/Huntsville NOAA Univ. of Central Florida Overview HIRAD Description HIRAD Design Team C-band (4-7 GHz) frequencies Synthetic thinned array radiometer (STAR) Pushbroom imager Single polarization for ocean wind speed Dual polarization for ocean vector wind HIRAD Development Timeline

  3. Sensitivity of WindSat 6.8 GHz Based on 2006 H*Wind analysis of Hurricanes Dennis, Katrina, Rita

  4. Technical Overview • Utilization of NASA Earth Science Office Technologies • Synthetic thinned aperture radiometer • Digital correlation in field programmable gate array • Radio Frequency Interference mitigation • Sensor Web information technology Engineering conceptwith aircraft fixtures

  5. Observing Systems Simulation Experiment Results presented by Tim Miller at AMS Annual Meeting (Jan 08) and AMS Hurricane Conference (Apr 08) HURRICANE FRANCIS NATURE RUN =20 mm/hr SIMULATED DATA FROM NATURE RUN With SFMR With HIRAD (11 km) Double-headed arrow indicates HIRAD swath width

  6. Aircraft OSSE using H*Wind Nature Run in H*Wind Simulated without HIRAD 121 109 117 Simulated with HIRAD at 20 km Simulated with HIRAD at 3 km 125 82 109

  7. Satellite OSSE using H*Wind Nature Run in H*Wind Simulated without HIRAD 121 109 117 Simulated with HIRAD at 350 km 125 82 109

  8. Preliminary Mission Study Example of sensor swath coverage of an Atlantic hurricane (yellow symbol) over a typical 24-hour period. XOVWM swath is red and HIRAD swath is blue. Performance Characteristics for HIRAD

  9. HIRAD Technology Investment Roadmap Satellite Demonstration of Improved Hurricane Ocean Surface Vector Winds and Rain Rate Unmanned Aerial Vehicle Demonstration (optional) Aircraft Demonstration Technology Transfer Operational Reconnaissance Hurricane Aircraft (optional) Technology Brassboard Demonstration in Laboratory

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