J9.1 Statistics of Atmospheric Boundary Layer Winds and Turbulence from Ship Based Doppler Lidar Measurements made during DYNAMO

Wednesday, 11 July 2012: 3:30 PM
Essex Center/South (Westin Copley Place)
W. Alan Brewer, NOAA/ESRL, Boulder, CO; and C. W. Fairall and S. P. de Szoeke

Using the NOAA High Resolution Doppler Lidar (HRDL), we made continuous measurements of the marine atmospheric boundary layer wind field during the DYNAMO field experiment from the RV Revelle. These motion-stabilized, scanning measurements of radial wind were used to calculate profiles of atmospheric turbulence from within a few meters of the ocean surface up through cloud base or the top of the aerosol layer every 20 minutes. Statistics of these turbulent profiles are presented as a function of different convective regimes. In addition, low-level scanning data are used to study the temporal and spatial evolution of precipitation-driven outflows, and their vertical extent.
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