Recent changes in the new medium-range forecast (MRF) model

Caplan, Peter

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Recent changes in the new medium-range forecast (MRF) model

1985
By Caplan, Peter
Series: Office note (National Centers for Environmental Prediction (U.S.)) 307

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Personal Author:

Caplan, Peter
Corporate Authors:

National Meteorological Center (U.S.) ; National Centers for Environmental Prediction (U.S.)
NOAA Program & Office:

NWS (National Weather Service) ; NCEP (National Centers for Environmental Prediction)
Description:

"On January 26, 1985, two modifications to the daily experimental runs of the new medium-range spectral model were simultaneously implemented; one was the use of "silhouette" mountains, the other a small correction of some aspects of the treatment of water vapor, to be referred to here as the virtual temperature correction. In addition to some before-and-after statistics, we will describe two cases of 120-hour forecasts in which parallel runs were made with and without modifications, so that comparisons are possible. In a run on January 9, we tested the new mountains only, while on January 24 both the mountains and the virtual temperature correction were tested"--first page, paragraph 1.
Keywords:

Numerical Analysis Numerical Weather Forecasting Weather Forecasting Numerical Analysis Numerical Weather Forecasting Weather Forecasting
Series:

Office note (National Centers for Environmental Prediction (U.S.)) 307
Document Type:

Office Note
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

urn:sha-512:6e2ebdc6afdcf68782159116043dd4f811162acc8a1e1630b705cd620849381bc0d20c00c0c12f5eb94f54d1c061eb26fd477dc69817d296463e720d7309e694
Download URL:

https://repository.library.noaa.gov/view/noaa/23558/noaa_23558_DS1.pdf
File Type:

[PDF - 1.84 MB ]

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