ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 3, pp. 209-215

Rossby waves observation in the Northwestern Pacific

T.V. Belonenko 
Saint Petersburg State University, 199178, St. Petersburg, 10th Line, 33/35
A combined collection of altimetry data from three satellites - Topex/Poseidon, ERS-1 and ERS-2, covering the time span 14.10.1992 through 31.03.2010, was analyzed in the form of sea level anomalies (SLA set provided by AVISO) over the northwestern Pacific water area. After the seasonal course was filtered out, the data were mapped as sea level isopleths (spatial-temporal sections) which allow determining empirical characteristics of Rossby waves such as length, period and phase speed. For the zonal isopleths along 30°, 35°, 40°, 45°, 50° and 55° N, dispersion curves are graphed and used as a reference at comparison with the obtained empirical characteristics of Rossby waves. From the patterns of isopleths pictured along the Kuril-Kamchatka Deep shelf, we obtain empirical characteristics of topographical Rossby waves, for which the shelf is a waveguide..
Keywords: Rossby waves, isopleths, topographical Rossby waves, sea level anomaly data, Northwestern Pacific, hovmoller diagram
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