Accession Number : ADA268071


Title :   Further Development and Testing of a Second-Order Bulk Boundary Layer Model


Descriptive Note : Master's thesis,


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH


Personal Author(s) : Krasner, Richard D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a268071.pdf


Report Date : 03 May 1993


Pagination or Media Count : 140


Abstract : A one-layer bulk boundary layer model is developed. The model predicts the mixed layer values of the potential temperature, mixing ratio, and u- and v-momentum. The model also predicts the depth of the boundary layer and the vertically integrated turbulence kinetic energy (TKE). The TKE is determined using a second-order closure that relates the rate of dissipation to the TKE. The fractional area covered by rising motion sigma and the entrainment rate (E) are diagnostically determined. The model is used to study the clear convective boundary layer (CBL) using data from the Wangara, Australia boundary layer experiment. The Wangara data is also used as an observation base to validate model results. A further study is accomplished by simulating the planetary boundary layer (PBL) over an ocean surface. This study is designed to find the steady-state solutions of the prognostic variable


Descriptors :   *BOUNDARY LAYER , *ATMOSPHERIC MOTION , *MIXED LAYER(MARINE) , *CLIMATE , CLOUDS , ATMOSPHERIC TEMPERATURE , DISSIPATION , AUSTRALIA , ENTRAINMENT , ATMOSPHERE MODELS , MASS TRANSFER , KINETIC ENERGY , DEPTH , TURBULENCE , CONVECTION , THESES


Subject Categories : Meteorology
      Physical and Dynamic Oceanography


Distribution Statement : APPROVED FOR PUBLIC RELEASE