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Institutions: University of Miami; University of Colorado; NOAA ETL

Ship-Based Measurements of Cloud Microphysics and PBL Properties in Precipitating Trade Cumuli During RICO. Institutions: University of Miami; University of Colorado; NOAA ETL. Investigators: P. Kollias (UM); J. Hare and A. White (CU); C. Fairall, G. Feingold, and R. Hill (ETL).

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Institutions: University of Miami; University of Colorado; NOAA ETL

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  1. Ship-Based Measurements of Cloud Microphysics and PBL Properties in Precipitating Trade Cumuli During RICO Institutions: University of Miami; University of Colorado; NOAA ETL Investigators: P. Kollias (UM); J. Hare and A. White (CU); C. Fairall, G. Feingold, and R. Hill (ETL)

  2. Ship-Based Radars • 915-MHz wind profiler--PBL 3-D winds, inversion height, cloud and precipitation structure • 9.4 GHz Doppler Radar (upward pointing)—Reference reflectivity; Doppler spectra ; Cloud dynamics and precipitation physics • 35 GHz Scanning Doppler cloud radar—Reflectivity and Doppler moments; Cloud mapping and microphysical properties; precipitation mapping • 94-GHz Doppler radar (stabilized/scanning)--High resolution Doppler spectra; cloud and precipitation microphysics

  3. Scanning Doppler Lidar (NOAA ETL) Range resolved radial wind speed and intensity measurement once a second Resolution/Range: ~20 cm s-1 ; 5 km Scanning: Motion compensated hemispheric scanner Measurements: Aerosol distributions and wind motions around and below clouds

  4. Ship-Board Instrumentation

  5. R/V Seward Johnson General Specifications • Length Overall - 204 feet. • Length between Perpendiculars - 183 feet. • Beam Overall - 36 feet. • Fuel Capacity - 60,000 Gal. • Fuel Consumption - 70 gal./hr., normal cruise. • Potable Water - 15,000 gal. with RO Unit (120 gal. hr.). • Accommodations - 40 (including crew). • Speed - 13 knots. • Year Built/Converted - 1984/1994.

  6. R/V Seward Johnson

  7. Ship Operations • Remote Sensing and In Situ -- Continuous • Rawindsondes – 6/day • Coordination with Island-ased Radars—Approx 20 km off shore (daily (?) repositioning) • Scanning for Ka-Band Radar and Doppler Lidar

  8. Statistical Properties of precipitating trade wind cumuli from cloud scale to mesoscale UM (W/X) NOAA/K “cloud entity” swath 10-15o NOAA 915-MHz 500m NOAA/K meso-scale swath 30 km

  9. Coordination with Other RICO Operations • Operations Center • Needs: Ship info for mission planning; Ship positioning and operations • Mode: Internent; Telephone; Radio (?) • Schedule: Before and after planning meetings; regular 6 per day soundings; on-demand • Surface-Based Radars • Needs: Positioning of ship; Ship operations; Met Input for island-based radar operations • Mode: Radio, Internet, Telephone • Schedule: On demand; scheduled times) • Aircraft • Needs: Ship operations and positioning; Observational input for in-flight operations • Mode: Radio • Schedule: On demand

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