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Verification of MIRS Cloud Retrievals with CLOUDSAT - Phase I

Verification of MIRS Cloud Retrievals with CLOUDSAT - Phase I. F. Iturbide-Sanchez, K. Garrett, W. Chen and S.-A. Boukabara. MIRS. TRMM. ECMWF. CLOUDSAT. External Data Products To Use For Validation of MIRS Hydrometeor Products. CLWC/CIWC and Rain Rate. CLWC/CIWC. CLWC/CIWC.

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Verification of MIRS Cloud Retrievals with CLOUDSAT - Phase I

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  1. Verification of MIRS Cloud Retrievals with CLOUDSAT - Phase I F. Iturbide-Sanchez, K. Garrett, W. Chen and S.-A. Boukabara

  2. MIRS TRMM ECMWF CLOUDSAT External Data Products To Use For Validation of MIRS Hydrometeor Products CLWC/CIWC and Rain Rate CLWC/CIWC CLWC/CIWC

  3. CLOUDSAT Overview The Cloud Profile Radar (CPR) is the primary CloudSat instrument. The CPR is a 94-GHz nadir-looking radar which measures the power backscattered by clouds as a function of distance from the radar. Footprint match : ~1 km Profile data available every 0.2 s approx. Retrieved products of interest: CLWC and CIWC CloudSat uses ECMWF data for CLWC and CIWC retrievals. A Fortran 90-based CloudSat reader was implemented.

  4. NOAA 18 CLOUDSAT 00:44:53 GMT 00:44:47 GMT CLOUDSAT and NOAA-18 Collocation Collocation was performed from Jun-10-2008 to Jun-16-2008. Distance and time threshold were set to 0.6 degrees and 30 min respectively. Two days, Jun-11-2008 and Jun-15-2008, showed a good number of collocation points.

  5. Comments and Future Work The current collocation program has to be modified to support the CloudSat footprint match resolution. For better inter-comparison, the time threshold is planned to be reduced to 10 minutes. Distance threshold will probably be changed from degrees to kilometers. Daily statistic comparisons between CloudSat and MIRS Hydrometeor products is in progress.

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