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OverviewOne of the main reasons we cannot tell what the weather will be tomorrow is that we do not know accurately enough what the weather is today. Mathematically speaking, numerical weather prediction (NWP) is an initial-value problem for a system of nonlinear partial differential equations in which the necessary initial values are known only incompletely and inaccurately. Data at the initial time of a numerical forecast can be supplemented, however, by observations of the atmos phere over a time interval preceding it. New observing systems, in particular polar-orbiting and geostationary satellites, which are providing observations continuously in time, make is absolutely necess ary to find new and more satisfactory methods of assimilating meteorological observations - for the dual purpose of defining atmospheric states and of issuing forecasts from the states thus defined. FUndamental progress in this area has been made in recent years and this book attempts to give a review and some suggestions for further improvements in the field of meteorological data assimila tion methods. The European Centre for Medium Range Weather Forecasts (ECMWF) every year organises seminars for the benefit of meteorologists and geophysicists of the ECMWF Member states. The 1980 Seminar was devoted to data assimilation methods, and this book contains selected lectures from that seminar. The purpose of the seminar was twofold: it was intended to give a basic introduction to the subject, as well as an overview of the latest developments in the field. Full Product DetailsAuthor: L. Bengtsson , M. Ghil , E. KällenPublisher: Springer-Verlag New York Inc. Imprint: Springer-Verlag New York Inc. Edition: Softcover reprint of the original 1st ed. 1981 Volume: 36 Dimensions: Width: 15.50cm , Height: 1.80cm , Length: 23.50cm Weight: 1.070kg ISBN: 9780387906324ISBN 10: 0387906320 Pages: 330 Publication Date: 09 November 1981 Audience: Professional and scholarly , Professional & Vocational Format: Paperback Publisher's Status: Active Availability: Awaiting stock  The supplier is currently out of stock of this item. It will be ordered for you and placed on backorder. Once it does come back in stock, we will ship it out for you. Table of ContentsAn Overview of Meteorological Data Assimilation.- A Review of Methods for Objective Analysis.- Normal Mode Initialization.- Assimilation of Asynoptic Data and the Initialization Problem.- Applications of Estimation Theory to Numerical Weather Prediction.- Convergence of Assimilation Procedures.- Some Climatological and Energy Budget Calculations Using the FGGE III-b Analyses During January 1979.- Appendix Provisional Report on Calculation of Spatial Covariance and Autocorrelation of the Pressure Field.- A. Eliassen.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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