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.

Download or read book Numerical Weather Prediction Activities Report written by United States. National Weather Service and published by . This book was released on 1977 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Research in Numerical Methods at the National Meterorological Center written by Ronald D. McPherson and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Weather Prediction Activities written by United States. National Weather Service and published by . This book was released on 1971 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book A Study of Non linear Computational Instability for a Two dimensional Model written by Paul D. Polger and published by . This book was released on 1971 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beitr ge Zur Physik Der Atmosph re written by and published by . This book was released on 1983 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Weather Prediction Activities written by National Meteorological Center (U.S.) and published by . This book was released on 1970 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prediction of Convective Activity Using a System of Parasitic nested Numerical Models written by Donald J. Perkey and published by . This book was released on 1976 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: A limited area, three dimensional, moist, primitive equation (PE) model is developed to test the sensitivity of quantitative precipitation forecasts to the initial relative humidity distribution. Special emphasis is placed on the squall-line region. To accomplish the desired goal, time dependent lateral boundaries and a general convective parameterization scheme suitable for mid-latitude systems were developed. The sequential plume convective parameterization scheme presented is designed to have the versatility necessary in mid-latitudes and to be applicable for short-range forecasts. The results indicate that the scheme is able to function in the frontally forced squallline region, in the gently rising altostratus region ahead of the approaching low center, and in the over-riding region ahead of the warm front. Three experiments are discussed.

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.

Download or read book Monthly Weather Review written by and published by . This book was released on 1993 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1970 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ocean Prediction written by and published by . This book was released on 1982 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1986 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970-07 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: