Accession Number:

ADA295701

Title:

Lagrangian Stochastic Modeling of Dispersion in the Planetary Boundary Layer.

Descriptive Note:

Final rept. 15 May 90-4 Apr 95,

Corporate Author:

COLORADO UNIV AT BOULDER

Personal Author(s):

Report Date:

1995-04-04

Pagination or Media Count:

14.0

Abstract:

An existing Lagrangian stochastic model for dispersion in the convective boundary layer CBL was extended in two main ways. First, a model for the mean field dispersion in a rapidly-evolving CBL was developed and calculations of the crosswind-integrated concentration CWIC were carried out for a range of conditions. Second, a Lagrangian model for the CWIC and the mean and root-mean-square concentrations was developed that uses the velocity fields from large-eddy simulations as input. Calculations of the CWIC fields were made for three source heights and showed good agreement with the convection tank measurements of Willis and Deardorff. AN

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE