Thursday, 27 January 2011
Washington State Convention Center
Gravity waves were detected in the region of inversion caps in the late mornings with a Doppler wind lidar during JU2003. The gravity waves were due to the strong shear of the LLJ and the thin layer of stable temperature stratification below the disappearing jet according the radiosonde wind and temperature profiles. The effect of wave motion at LLJ level and the near ground turbulent momentum and heat transport is investigated in this study. Near ground air motions were analyzed using the sonic anemometer data situated in the urban and suburban areas. The time series were separated into three parts, the mean, the wave, and turbulence, using a multi-resolution wavelet analysis technique. Vertical momentum and heat fluxes from wave and turbulent motions were computed from time series.
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