Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 2, pp. 207-217
Assessment of mesoscale dynamics in the Norwegian Sea from remote sensing and hydrological survey data
A.A. Romanov
1 , A.A. Romanov
1 1 Russian Space Systems JSC, Moscow, Russia
Accepted: 20.02.2019
DOI: 10.21046/2070-7401-2019-16-2-207-217
A series of special surveys of ocean surface mesoscale dynamics was conducted on the basis of hydrological and remote sensing data in the framework of a complex experiment conducted in the Norwegian Sea in 1997. New information supplementing the results of the experiment was derived from TOPEX/Poseidon satellite altimetry data. According to the analysis of hydrological survey data on a micropolygon and satellite data on polygons #2 and #3, certain surface structures were revealed that could be recognized both in satellite altimetry height anomaly distribution and in synthetic aperture radar images. Complex assessment of vortex dynamics in polygon #2 taking into account decadal, monthly and seasonal distributions of sea surface height anomaly, suggests a quasistationary character of the observed structures. Analysis of the remote and contact measurements of ocean surface layer at polygon #3 allowed investigating the properties of vortexes registered by satellite altimetry data that were well manifested in physical parameter distributions at the depth of 20 meters and much less so in surface distributions of temperature and salinity.
Keywords: satellite altimetry, SAR, sea surface temperature, hydrology, mesoscale structures, remote sensing, Norwegian Sea’97 experiment results
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