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Some experiments in the objective analysis of contour charts
Author(s) -
Corby G. A.
Publication year - 1961
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708737105
Subject(s) - interpolation (computer graphics) , geostrophic wind , series (stratigraphy) , contour line , meteorology , fault (geology) , environmental science , climatology , computer science , geology , statistics , mathematics , artificial intelligence , geography , seismology , motion (physics) , paleontology
The quality of a series of objective analyses of synoptic charts has been examined and it has been found that statistically the discrepancies from manual analyses are of the same order as the variations which arise amongst conventional analyses by different individuals. A systematic fault in the computed analyses of surface maps (viz. an underestimation of the depth of intense depressions over the ocean) was found to be due to the use of the geostrophic approximation and to other limitations of the interpolation system. Modifications designed to overcome this shortcoming have raised the standard of the analysis of depressions to that of the analyses as a whole.