Record Details
A nonlocal mixing formulation for the atmospheric boundary layer
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | A nonlocal mixing formulation for the atmospheric boundary layer |
| Names |
Frech, Michael C.
(creator) Mahrt, Larry (advisor) |
| Date Issued | 1993-12-17 (iso8601) |
| Note | Graduation date: 1994 |
| Abstract | A two-scale approach for the turbulent mixing of momentum in an unstable stratified boundary layer is proposed in an attempt to eliminate existing inconsistencies between parameterized mixing of heat and momentum. The parameterization of the large eddy stress is suitable for simple boundary layer models where computational efficiency is important. We test the proposed formulation in a simple boundary layer model and compare predicted momentum profiles with Lidar mean momentum profiles from FIFE 1989. We examine the sensitivity of the proposed mixing scheme to baroclinicity. While the proposed two-scale approach is able to better predict observed conditions of well mixed momentum profiles, the complexity of momentum transport in baroclinic conditions is not well approximated. |
| Genre | Thesis/Dissertation |
| Topic | Planetary boundary layer -- Mathematical models |
| Identifier | http://hdl.handle.net/1957/28776 |
