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## Objective Analysis of the Structure of Three-Dimensional Atmospheric Fronts

A computational method for diagnosing threedimensional atmospheric fronts from temperature,

wind, and geopotential fields on a threedimensional regular grid is proposed. The criterion, which serves for

the diagnosis of atmospheric fronts, is discussed. The weights of the input information about the mentioned

fields are optimized based on the maximal difference between the correlation functions for (a) pairs of parti

cles separated by the front and (b) pairs from one synoptic mass. These weights were different for different

baric levels. The correlation functions and the optimization of weights were estimated on the basis of the

archive of fields of the NCEP objective analysis on the halfdegree latitude–longitude grid and data from

aerological observations. The results of numerical experiments on the construction of atmospheric fronts are

presented. Applying the described method to fields predicted for a term of up to 36 h showed that errors in

the prognostic models introduce a relatively weak distortion into the geometry of atmospheric fronts.