Combining Space-based Active and Passive Microwave Observations to Improve Global Snowfall Estimates Norman Wood Colorado State University Fort Collins, Colorado Acknowledgements: John Haynes, CSU CIRA; Peter Rodriguez and David Hudak, EC; Andy Heymsfeld, NCAR; Larry Bliven, NASA GSFC; Gwo-Jong Huang, CSU University of Wisconsin Madison, Wisconsin Tristan L'Ecuyer
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Combining Space-based Active and Passive Microwave ...€¦ · CloudSat Observations CloudSat and CPR Parameters 94 GHz (3.2 mm, W-band) Inclination: 98 degrees Vertical resolution:
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Combining Space-based Active and Passive Microwave Observations to Improve Global Snowfall Estimates
Norman Wood
Colorado State UniversityFort Collins, Colorado
Acknowledgements: John Haynes, CSU CIRA; Peter Rodriguez and David Hudak, EC; Andy Heymsfeld, NCAR; Larry Bliven, NASA
GSFC; Gwo-Jong Huang, CSU
University of WisconsinMadison, Wisconsin
Tristan L'Ecuyer
Outline
Detecting snowfall from CloudSat
CloudSat's radar-only retrieval
Limitations of refectivity observations
a priori information
Retrieval performance characteristics
Constraints from PMW observations
CloudSat Observations
CloudSat and CPR Parameters94 GHz (3.2 mm, W-band)Inclination: 98 degrees
Vertical resolution: 485 mFootprint: 1.7 x 1.4 km
Sensitivity: -28 dBZ
Snow detection: near-surface refectivity, temperature profle, and a melting layer model