Determining Large Scale Tendency Terms for the Navy Over-Water Local Atmospheric Prediction System (NOWLAPS)

Abstract

A manual method for calculating large scale tendency (LST) terms for the Navy Over-Water local Atmospheric Prediction System (NOWLAPS) is adapted from an automated, central-site method utilizing forecast fields from the Navy Operational Global Atmospheric Prediction System (NOGAPS). This report descrives the design and use of the LST terms, and compares NOWLAPS predictions for an oceanic weather station ship to those of the Navy Operational Local Atmospheric Prediction System (NOLAPS) and persistence. NOWLAPS, a one-dimensional planetary layer (PBL)model, is designed primarily for shipboard use and was adapted to the Hewlett-Packard 9845 computer under a previous contract. Although it can be run as a single-station PBL forecast model, NOWLAPS can not be a competitive forecast tool until horizontal advection is included or parameterized. Keywords: Marine atomospjere models; Boundary layer modeling.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1987
Accession Number
ADA180538

Entities

People

  • Lanning Penn
  • Philip Ardanuy

Tags

Communities of Interest

  • Cyber
  • Weapons Technologies

DTIC Thesaurus Topics

  • Advection
  • Atmospheric Sciences
  • Boundary Layer
  • Computers
  • Contracts
  • Layers
  • Meteorology
  • Moisture Content
  • Navy
  • Research Facilities
  • Sea Surface Temperature
  • Stations
  • Surface Temperature
  • Uss Carl Vinson
  • Uss Constellation
  • Vapor Pressure
  • Weather Stations

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Computer Science.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers