Showing papers on "Meteorological reanalysis published in 1981"
Book•
09 Nov 1981
TL;DR: Eliassen et al. as discussed by the authors presented a review of methods for objective analysis of meteorological data, including normal mode initialization, asynoptic data and the initialization problem, and applied estimation theory to numerical weather prediction.
Abstract: 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.
148 citations
01 Jan 1981
TL;DR: The process of numerical weather prediction is classically viewed as an initial value problem whereby the governing equations of geophysical fluid dynamics are integrated forward from fully determined initial values of the meteorological fields at some initial time as discussed by the authors.
Abstract: The process of numerical weather prediction is classically viewed as an initial value problem whereby the governing equations of geophysical fluid dynamics are integrated forward from fully determined initial values of the meteorological fields at some initial time. Given the mathematical properties of the equations of motion applied to geophysical fluids and the complexity of energetic processes in the atmosphere, solving this “initial value problem” is by itself a tremendous task: many a numerical and physical “modeler” is currently engrossed in it. Still, providing the ultimate scheme for integrating the discretized equations of atmospheric dynamics would only be half the answer. For one must also attend to the problem of determining, from observations of the real atmosphere, the initial values of the many time-dependent quantities which define the state of a discrete, numerical, atmospheric model.
5 citations