Some Observations of Vertical Velocity Skewness in the Convective Planetary Boundary Layer.

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

28

Scientific paper

Previously published profiles of vertical velocity (w) skewness observed in the convective atmospheric boundary layer show deficits in the upper part of the layer, relative to large eddy simulations designed to apply to highly convective cloudless planetary boundary layers. Thus, we examine w-skewness profiles from data collected in other experiments. We find that skewness profiles in the three highly convective cases with the fewest and smallest clouds agree better with the large eddy simulation results than other profiles presented here and previously; however the deficit at the top of the boundary layer-though smaller-remains.We hypothesize that the remaining deficit for these three cases results from the presence of 10-km wavelength quasi two-dimensional sinusoidal structures, which have near-zero skewness. The small domain and periodic boundary conditions of a large eddy simulation may not allow such structures to develop fully. Removal of the effects of these structures by counting only flight legs nearly parallel to their axes, for two of the cases, improves agreement between the simulation and observations. We speculate that these structures result from gravity waves interacting with the boundary layer.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Some Observations of Vertical Velocity Skewness in the Convective Planetary Boundary Layer. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Some Observations of Vertical Velocity Skewness in the Convective Planetary Boundary Layer., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Some Observations of Vertical Velocity Skewness in the Convective Planetary Boundary Layer. will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-782258

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.