Thursday, 15 January 2004: 9:15 AM
Modeling Entrainment and Boundary Layer Growth during a Bore Event using Different Turbulence Parameterizations and LES
Room 6A
Poster PDF
(2.7 MB)
During IHOP experiment several bore events were documented
with S-POL radar, FM-CW radar, lidar, Multiple Antenna Profiler (MAPR),
Atmospheric Emitted Radiance Interferometer (AERI)
and measurements by Oklahoma mesonet stations.
A series of MM5 simulations of a gravity current and
bore on early morning of June 4, 2002
reproduced the event with a remarkable
accuracy. Availability of different turbulence parameterizations
in MM5 allows comparison of performance of different turbulence
parameterizations (Burk-Thompson, ETA, QL) as a function of scale.
We concentrate on
study of entrainment and boundary layer growth and compare
turbulent kinetic energy budget terms with LES simulations
using ARPS. Idealized simulations with ARPS and WRF are planned for
the future to gain deeper understanding of the behavior of the
different turbulence schemes.
Supplementary URL: