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The representation of the annual temperature variation over central and northern Europe by a two‐term harmonic form
Author(s) -
Craddock J. M.
Publication year - 1956
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.49708235304
Subject(s) - residual , variance (accounting) , variation (astronomy) , term (time) , harmonic , harmonics , climatology , mathematics , total variation , representation (politics) , atmospheric sciences , harmonic analysis , environmental science , statistics , physics , geology , mathematical analysis , astrophysics , accounting , algorithm , quantum mechanics , voltage , politics , political science , law , business
Abstract A harmonic analysis is made of the annual temperature variation at 42 stations spread over central and northern Europe, using in each case 5‐day mean temperatures averaged over a considerable number of years. It is found that the first two harmonics account for nearly all the annual variance, the residual variance being usually less than 0.4 per cent of the total. Most of this residual variance seems to be random in origin, but a small part may be due to systematic departures from the two‐term harmonic form.