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TitleDynamic Meteorology: Data Assimilation Methods [electronic resource] / edited by Lennart Bengtsson, Michael Ghil, Erland Kรคllรฉn
ImprintNew York, NY : Springer New York, 1981
Connect tohttp://dx.doi.org/10.1007/978-1-4612-5970-1
Descript XIV, 330 p. 8 illus. online resource

SUMMARY

One 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 atmosยญ 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 necessยญ 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 assimilaยญ 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


CONTENT

An 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


Chemistry Chemometrics Atmospheric sciences Computational intelligence Chemistry Math. Applications in Chemistry Computational Intelligence Atmospheric Sciences



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