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A theoretical note on some errors in estimating the curvatures of air trajectories and streamlines
Author(s) -
Hogben G. L.
Publication year - 1946
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.49707231410
Subject(s) - isobar , streamlines, streaklines, and pathlines , curvature , isobaric process , distortion (music) , mechanics , physics , classical mechanics , geometry , mathematics , thermodynamics , nuclear physics , amplifier , nucleon , optoelectronics , cmos
Abstract This note discusses the theoretical aspects of the errors in measuring curvature due (a) to taking streamlines as trajectories (b) to taking isobars as streamlines (c) to combining these errors by taking isobars as trajectories.It is shown that, in addition to a scale factor error associated with movement of the isobaric and streamline systems (this has already been noted by other writers), there are errors associated with (i) The difluence of the isobars and streamlines (ii) The rate of distortion of the systems (iii) The angle between isobar and wind.By choosing the right place in the isobar and streamline fields some or all of these errors may be avoided. Otherwise any one of them may be significant.