Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009. Issue.6. Vol.1. P. 386-391
Semi-annual period in sea level fluctuations
Факультет географии и геоэкологии СПбГУ, 199178 Санкт-Петербург, В.О., 10 линия, д. 33/35
The paper presents the results of a study of semi-annual oscillations in sea level according to the
altimeter measurements in the north-western Pacific Ocean. Analyzed altimeter information (satellite
data from Jason-1, T / P, ENVISAT, GFO-1, ERS1 / 2, GEOSAT), obtained from AVISO (Archiving,
Validation and Interpretation of Satellite Oceanographic data - http://www.aviso.oceanobs.com /). It was
the dominance of annual and semi-annual low-frequency waves in the sea level perturbations. In the
analysis of zonal and meridional wavelet isopleths, there have been display systems of westward
propagating waves. Results show spatial-temporal distribution of semi-annual periodicity in geographical
terms.
Keywords: sea level, Pacific Ocean, interannual variability, semi-annual fluctuations, altimetry, wavelet
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