Estimations of atmospheric boundary layer fluxes and other turbulence parameters from Doppler lidar data
- Univ. of Oklahoma, Norman (United States)
- National Oceanic and Atmospheric Administration, Boulder, CO (United States)
This work is part of the First International Satellite Land Surface Climatology Project (ISLSCP) Field Experiment (FIFE), an international land-surface-atmosphere experiment aimed at improving the way climate models represent energy, water, heat, and carbon exchanges, and improving the utilization of satellite based remote sensing to monitor such parameters. Here the authors present results on doppler LIDAR measurements used to measure a range of turbulence parameters in the region of the unstable planetary boundary layer (PBL). The parameters include, averaged velocities, cartesian velocities, variances in velocities, parts of the covariance associated with vertical fluxes of horizontal momentum, and third moments of the vertical velocity. They explain their analysis technique, especially as it relates to error reduction of the averaged turbulence parameters from individual measurements with relatively large errors. The scales studied range from 150m to 12km. With this new diagnostic they address questions about the behavior of the convectively unstable PBL, as well as the stable layer which overlies it.
- OSTI ID:
- 6035756
- Journal Information:
- Journal of Geophysical Research; (United States), Vol. 97:D17; ISSN 0148-0227
- Country of Publication:
- United States
- Language:
- English
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