Status Report on a Low-Level Atmospheric Turbulence Model for Marine Environment
Abstract
Two major modifications to A.R.A.P.'s program for computing the detailed low-level atmospheric distributions of velocity, temperature, moisture, refractive index, and the turbulent variances of these quantities for marine environments are described. The dimensions of the program have been extended to a two-dimensional, unsteady calculation to permit prediction of shoreline conditions developing in time. Also, a thermal radiation model has been incorporated into the one-dimensional model to permit the radiative flux divergence term to be computed in a fully coupled manner. Sample calculations have been made both to verify that the program behaves in a reasonably physical manner and to exemplify some of the types of boundary layer distributions which may be expected to occur. The coupled thermal radiation model was used to make calculations of the typical diurnal variations in the boundary layer over both land and water. The time variation of the boundary layer's stability is quite different over water than it is over land. This leads to sea-breeze circulations in the coastal planetary boundary layer which are exemplified in calculations using the two-dimensional, unsteady version of the model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1976
- Accession Number
- ADA030856
Entities
People
- D. A. Oliver
- G. G. Williamson
- M. E. Teske
- W. S. Lewellen