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EBookClubs

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Book Objective Numerical Prediction Out to Six Days Using the Primitive Equation Model A Test Case

Download or read book Objective Numerical Prediction Out to Six Days Using the Primitive Equation Model A Test Case written by A. James Wagner and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book The LFM Model 1976

Download or read book The LFM Model 1976 written by Joseph P. Gerrity and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NOAA Technical Memorandum NWS NMC

Download or read book NOAA Technical Memorandum NWS NMC written by and published by . This book was released on 1973 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NOAA Technical Memorandum NWS TDL

Download or read book NOAA Technical Memorandum NWS TDL written by United States. National Weather Service and published by . This book was released on 1972 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Noise Analysis of a Limited area Fine mesh Prediction Model

Download or read book Noise Analysis of a Limited area Fine mesh Prediction Model written by Joseph P. Gerrity and published by . This book was released on 1970 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Book Saturation Thickness Tables for the Dry Adiabatic Pseudo adiabatic and Standard Atmospheres

Download or read book Saturation Thickness Tables for the Dry Adiabatic Pseudo adiabatic and Standard Atmospheres written by Jerrold A. LaRue and published by . This book was released on 1966 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The requirements for a complete moisture parameter include not only measure of the degree of saturation but also a measure of the quantity of water vapor. "Saturation Thickness" meets these two requirements when the thickness of the layer is also considered. The saturation thickness is defined as a hypothetical thickness required to produce saturation, given the moisture quantity and lapse rate of the layer. Tables of saturation thickness are given for the moist and dry adiabatic, and U.S. Standard Atmosphere lapse rate over a temperature range at 1000 mb of -400C to +400C. The 1000-500 mb layer has been divided into the three layer intervals corresponding to the standard radiosonde levels. The tables should obviate the efforts of other investigators to derive this information. The significance of errors arising from assumptions and computational approximations is investigated in the Appendix.

Book Decomposition of a Wind Field on the Sphere

Download or read book Decomposition of a Wind Field on the Sphere written by Clifford H. Dey and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Recent Studies of Computational Stability

Download or read book Recent Studies of Computational Stability written by Joseph P. Gerrity and published by . This book was released on 1970 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations of the computational stability of finite difference formulations of the equations governing shallow water, non-linear gravitational oscillations are reported. The investigations consist of empirical analyses of the results of numerical integration of the quasi-two-dimensional and fully two-dimensional versions of the equations. the results obtained in the quasi-two-dimensional experiments suggested the formulation of filters for use in approximating the non-linear terms. By filtering certain high frequency non-linear interactions, it is found possible to archive relatively well-behaved long term integrations. A number of efforts to extend this result to the fully two-dimensional equations are indicated. One procedure was found to be practically successful, but is finally rejected on the basis of the instability of its linear counterpart. The paper concludes a critique of possible extensions of the investigation.

Book Toward Developing a Quality Control System for Rawinsonde Reports

Download or read book Toward Developing a Quality Control System for Rawinsonde Reports written by Frederick G. Finger and published by . This book was released on 1973 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Results of investigations indicate that many of the problems that prevent rawinsonde data from reaching the user can be rectified by proper quality control procedure. Methods have been developed to test the effectiveness of quality control, and these have resulted in significant improvements in data usage in NMC. Typically, data utilization from U.S. moving ships in the Pacific was increased from 35% to 95% in less than 3 years; from the NWS Pacific Region, data procurement and use more than doubled between 1968 and 1972; and improvements in data from conterminous U.S. stations could be projected to indicate an increase of 5,000 additional observations being processed annually at NMC. Data quality can be improved and sustained only while active monitoring and deficiency notification programs are in operation. When such programs are terminated, data quality deteriorates to original levels. An effective program to adequately control data quality must involve integrated functions at data sources, communications centers, processing centers, and, most importantly, headquarters elements." --p.1.

Book Tropical Cyclone Activity over the North Indian Ocean

Download or read book Tropical Cyclone Activity over the North Indian Ocean written by M. Mohapatra and published by Springer. This book was released on 2016-11-24 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals primarily with understanding, monitoring and prediction of Tropical Cyclones (TCs) over the North Indian Ocean (NIO). There is special emphasis on TC genesis, intensification, movement and associated adverse weather like heavy rainfall and gale winds. It highlights the current state of research on TCs over the NIO and recent improvements in early warning systems due to advances in observational, analytical and numerical weather prediction techniques. The chapters in the book are authored by leading experts from research and operational environments.The chapters presented in the book intend to stimulate thinking and hence further research in the field of TCs, especially over the NIO region. They provide high quality reference material for all experts working in the field of TC related disaster management. This book is relevant to TC forecasters and researchers, managers, policy makers, graduate and undergraduate students.