Objective Numerical Prediction Out to Six Days Using the Primitive Equation Model-A Test Case PDF Download
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Author: A. James Wagner Publisher: ISBN: Category : Condensation (Meteorology) Languages : en Pages : 36
Book Description
This report is a brief summary of the results of a test case study using the primitive equations to make numerical predictions out to six days after the initial time. Daily and select 5-day mean chart of 500-, 700-, and 1000-mb height and 1000 to 500- and 1000 to 700-mb thickness, along with their departures from normal, where produced directly from the model. For comparison, the barotropic 500-mb forecast heights were also obtained, and both primitive and barotropic forecasts were compared with the observed heights and thicknesses.
Author: A. James Wagner Publisher: ISBN: Category : Condensation (Meteorology) Languages : en Pages : 36
Book Description
This report is a brief summary of the results of a test case study using the primitive equations to make numerical predictions out to six days after the initial time. Daily and select 5-day mean chart of 500-, 700-, and 1000-mb height and 1000 to 500- and 1000 to 700-mb thickness, along with their departures from normal, where produced directly from the model. For comparison, the barotropic 500-mb forecast heights were also obtained, and both primitive and barotropic forecasts were compared with the observed heights and thicknesses.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 538
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Joseph P. Gerrity Publisher: ISBN: Category : Differential equations, Nonlinear Languages : en Pages : 92
Book Description
"A diagnostic study of the mechanism responsible for producing high wavenumber oscillations (noise)in the numerical solution of the nonlinear equations governing a free surface, barotropic, atmospheric model is reported. The oscillations are identified as predominantly the result of the lattice of the difference equations and the boundary conditions employed to specified the solution. The analytic methods employed involved the use of space and time sections of the numerical solutions to provide a set of hypotheses. These are tested utilizing a one-dimensional linear analog of the model equations. The solution of the linear equations is obtained analytically, by the method of characteristics, and numerically. Several possibilities for removing the noise are suggested. Some improvement is demonstrated when the suggested methods are used in the linear one-dimensional analog.
Author: Philip F. Clapp Publisher: ISBN: Category : Cloud forecasting Languages : en Pages : 38
Book Description
Northern Hemisphere fields of mean cloudiness were constructed using TIROS nephanalyses for the late-fall seasons (Oct. to Dec.) of 3 years, 1962-64. These may be useful in studies of cloud climatology and year-to-year variations of the earth-atmosphere heat budget; and for designing and testing cloud-modeling procedures in numerical experiments. Shortcomings were revealed in the present subjective nephanalysis documentation which hopefully will soon be corrected by the promising work now going on in digitizing the video pictures.
Author: A. James Wagner
Author: A. James Wagner
Author: Takashi Nitta
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Author: Joseph P. Gerrity
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Author: Ronald D. McPherson
Author: Joseph P. Gerrity
Author: Paul D. Polger
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Author: Philip F. Clapp