Phillips Laboratory Global Spectral Numerical Weather Prediction Model
Abstract
This report documents the ten-year (1981-91) development of the Phillips Laboratory Global Spectral Model (PL GSM). Beginning with the National Meteorological Center Model of 1980, the hydrodynamics of the model were recoded and new physical parameterizations were developed for radiation, planetary boundary layer, cumulus convection, and gravity wave drag effects on the large- scale forecast fields. A sequence of tests and parameterization refinements were carried out to arrive ultimately at the current version of the PL GSM, termed PL-91. The report describes its performance with respect to that of the operational AFGWC GSM in a series of six January and June forecasts. The PL-91 version appears to produce better forecasts of virtually all parameters, producing small systematic errors and slower error growth. The model is envisioned to serve as a research tool to develop techniques for global cloud forecasting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 11, 1992
- Accession Number
- ADA267293
Entities
People
- Chien-hsiung Yang
- Donald C. Norquist
- Douglas C. Hahn
- Sam Chang
Organizations
- Phillips Laboratory