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Maximum entropy spectral analysis of the Duero Basin
Author(s) -
Leite Solange Mendonça,
Peixoto José Pinto
Publication year - 1995
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3370150408
Subject(s) - hydrography , maximum entropy method , climatology , environmental science , structural basin , spectral analysis , precipitation , spectral line , principle of maximum entropy , maximum entropy spectral estimation , atmospheric sciences , meteorology , geology , mathematics , physics , statistics , oceanography , spectroscopy , statistical physics , geomorphology , quantum mechanics , astronomy
Maximum entropy spectral analysis for the estimation of power spectra is used to study monthly and annual spectra of air temperature and precipitation at 63 weather stations in Duero Hydrographic Basin. Annual data are first submitted to the maximum entropy method (MEM) and the resulting power found are analysed. These spectra were then stratified according to the spectral peaks and on this basis several climatic regions were defined for the Duero Basin. The MEM spectral estimates of monthly values clearly show the annual and semi‐annual cycle.