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An Experiment with the Wind Law in the NMC Objective Analysis Program

Glenn E. Rasch

出版	U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service, National Meteorological Center, 1977
URL	http://books.google.com.hk/books?id=G_CrAQAACAAJ&hl=&source=gbs_api

註釋

"When the next generation of polar orbiting weather satellites, the TIROS N series, becomes operational, the number of remote soundings available to the NMC objective analysis program will increase by nearly an order of magnitude. The number of soundings will be increased because the TIROS N sounder will be capable of retrieving soundings through clouds and over land. Sounders currently in operation do not have such capability. Since remote sensors aboard TIROS N will produce atmospheric mass observations but no wind observations, the wind law of the objective analysis procedure will become increasingly important. Studies have shown that corrections made to the mass field are rapidly "forgotten" by large scale NWP models unless corresponding corrections are made to the motion field. Unless the analysis procedure used can correct the wind field in such a way as to effect a reasonable balance between mass and motion fields, ingestion of large numbers of remote soundings may be futile or perhaps even harmful"--Introduction.