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NMC Operational Model Monthly Precipitation Verification, December 1981 - November 1983
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1984
[PDF-1.00 MB]
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Description:"The monthly precipitation verification program (see Office Note 256, May 1982) used to monitor the quality of NMC's operational model precipitation forecasts was converted from a station to a model gridpoint network system. Instead of interpolating model forecasts to specific observation stations, average observed rainfall amounts are estimated at model gridpoints. All model gridpoints in the verification area are included. In addition, there is now a consistency between observed and forecast values since they both represent average areal amounts. This makes quantitative precipitation statistics more useful. The verification system is discussed first. Then, statistics for 12-48 hour forecasts from the operational models--Limited-area Fine-mesh (LFM) and Twelve-layer Spectral (SMG)--are presented for the period, December 1981 to November 1983. Finally, model forecast characteristics are discussed"--Introduction.
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Content Notes:Robert Hirano, Joe Johnson.
"July 1984."
"This is an unreviewed manuscript, primarily intended for informal exchange of information among NMC staff members."
System requirements: Adobe Acrobat Reader.
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Rights Information:Public Domain
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Compliance:Library
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