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. 5, pp. 260-268

The relationship between low-frequency variability of the heat advection and of the sea level in the NW Pacific ocean

T.V. Belonenko 
Saint Petersburg State University, 199178, St. Petersburg, 33/35 10th Line
This article discusses why the Rossby waves are not confined to isopleths of altimetry observations of the sea level, but also present in satellite observations of the sea surface temperature and of the chlorophyll-a concentration. A hypothesis is stated and checked about advective transport of the water characteristics by longitudinal currents of Rossby waves. It is shown that characteristics of the Rossby waves propagating to west are likewise the features of the longitudinal component of the current velocity and of the features of the wave disturbances in the temperature field. Then estimates of the wave disturbances in the temperature field may be treated as the wave disturbances in the current velocity field or that of the sea level height. We consider the low-frequency variability of the sea level in the NW Pacific ocean according to satellite altimetry data. Analyzed data are the ADT and the SLA for a period 14.10.1992 till 17.10.2007 at increments of 1/3 º of the latitude and longitude and the time step 7 days. The study area extends over 30-60˚N and 135-200˚E. The resulting estimates of the sea level variability scales are also the estimates of the low-frequency temperature variability.
Keywords: Rossby waves, water temperature, heat advection, Kuroshio, the sea level, the NW Pacific ocean, isopleths
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