Accession Number:

ADA532497

Title:

Moist and Boundary Layer Physics

Descriptive Note:

Annual rept.

Corporate Author:

NAVAL RESEARCH LAB MONTEREY CA

Personal Author(s):

Report Date:

1998-09-30

Pagination or Media Count:

5.0

Abstract:

Improve the understanding of cloud and boundary layer processes within the littoral through the use of the Coupled OceanAtmosphere Mesoscale Prediction System COAMPS and relevant observations. Improve the moist and boundary layer physics schemes used in COAMPS based on knowledge gained through extensive testing and verification of high-resolution 1-20 km horizontal grid spacing numerical simulations in the littoral. Develop scientific knowledge on the dynamics of boundary layer processes and stratiform, coastal orographic, and meso-convective cloud systems. Evaluate the impact of these processes on regional-scale forecasts and weapon and sensor systems used by the Fleet. Evaluate model biases in moisture, precipitation, and cloud coverage forecasts in regions of complex coastal orography using case study analyses and real-time forecasts of observed events. Use explicit cloud simulations to test and make improvements in the computationally efficient bulk microphysical and cumulus parameterization schemes currently used in high-resolution 1-20 km horizontal grid spacing COAMPS forecasts. Complete term-by-term analyses of the boundary layer forcing terms in COAMPS and assess model biases in boundary layer structure such as predicted boundary layer depth, vertical stability and moisture profiles, and EMEO characteristics. Improve boundary layer physics schemes used in COAMPS based on testing and model verification with relevant observational and numerical data bases.

Subject Categories:

  • Meteorology
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE