Interaction and Cloud Processes in the VOCALS Stratocumulus Region C. W. Fairall(1), D. Wolfe (1), S. Pezoa (1), S. de Szoeke(1), L. Bariteau (1, 2), Efthymios Serpetzoglou (3), Virendra Ghate (3), and Paquita Zuidema (3) Results from NOAA Stratus Cruises 2001-2006
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Observation Systems Air-sea Fluxes, Clouds, Precipitation
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Shipboard Investigation of Air-sea Interaction and Cloud Processes in the VOCALS Stratocumulus Region
C. W. Fairall(1), D. Wolfe (1), S. Pezoa (1),S. de Szoeke(1), L. Bariteau (1, 2), Efthymios Serpetzoglou
Instrument/Variable Oct 01 Nov 03 Dec 04 Oct 05 Oct 06 Flux X X X X X Sonde X X X X X Aerosol X X X X Microwave X X X X X Ceilometer X ~ X X X Cloud radar X X ~ C-band radar X X X Drizzle radar X X X X
96oW 90oW 84oW 78oW 72oW 66oW
32oS
24oS
16oS
8oS
0o
Cloud-Aerosol-Drizzle Connection
Cloud-aerosol Indirect Effect Example from Stratus2005:
Minimum in PBL aerosol concentration corresponds to broken cloud period and much higher transmission of solar flux to ocean.
Broken cloud period was during a POC with drizzling mesoscale cloud features.
Note cloud LWP about the same for solid vs broken clouds.