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winds at St. Peter and St. Paul Rocks during the first sequal year
Author(s) -
Garzoli Silvia L.,
Katz Eli Joel
Publication year - 1984
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl011i008p00715
Subject(s) - intertropical convergence zone , geology , spectral analysis , wind stress , amplitude , climatology , meteorology , atmospheric sciences , geography , physics , precipitation , quantum mechanics , spectroscopy
Wind observations were obtained during the first nine months of the SEQUAL field program from a station maintained at St. Peter and St. Paul (SPP) rocks. Winds are very steady from May to November and very unsteady during April when the Intertropical Convergence Zone (ITCZ) crosses the site. Wind stress components are computed and comparison with 1979 data shows that the onset of the winds occurred one month earlier in 1983 but is of similar amplitude. The spectral analysis of the wind shows a significant increase in the variance for periods between 3‐5 days and 10‐15 days.