Accession Number:

ADA247134

Title:

An Evaluation of the Navy Atmospheric Boundary Layer Model

Descriptive Note:

Final rept

Corporate Author:

NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB MONTEREY CA

Personal Author(s):

• Vogel, G. N.
• Langland, R. H.

Report Date:

1991-08-01

Pagination or Media Count:

31.0

Abstract:

The results from a test performed to validate the Navy Atmospheric Boundary Layer NABL model are presented. Average statistics indicate that NABL forecast temperature profiles compare favorably with those from a 40 km horizontal resolution version of the Navy Operational Regional Atmospheric Prediction System NORAPS, but that negative dry moisture biases are more severe in the NABL model. Test results indicate that the NABL model is superior to NORAPS for short-range forecasting of elevated trapping layers however, NABLs ability in surface ducting assessment was found to be limited. It is recommended that the NABL model be upgraded to operational status so that its use in refractivity forecasting and in applications programs which profile high resolution boundary layer information may be exploited.

Descriptors:

• *TEST AND EVALUATION
• *WEATHER FORECASTING
• *EARTH ATMOSPHERE
• *BOUNDARY LAYER
• *FORECASTING
• *ATMOSPHERIC TEMPERATURE
• *MODELS
• REFRACTION
• MATHEMATICAL MODELS
• MOISTURE
• BOUNDARY LAYER FLOW
• SHORT RANGE(TIME)
• SURFACES
• MARINE ATMOSPHERES
• PROFILES
• DUCTS
• WIND
• RESOLUTION
• OPERATIONAL READINESS
• RADIOSONDES
• TEMPERATURE
• NUMERICAL METHODS AND PROCEDURES

Subject Categories:

• Meteorology
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE