ERS SAR AND ENVISAT ASAR OBSERVATIONS OF OCEANIC DYNAMIC PHENOMENA IN THE SOUTHWESTERN OKHOTSK SEA
A combined use of SAR (ERS-1, ERS-2 and Envisat), visible and thermal infrared (NOAA AVHRR) and microwave radiometric (Aqua AMSR-E) images as well as the results of modeling were integrated to associate the SAR backscatter patterns observed in warm and cold seasons to physical and biological forcing...
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.380.768 http://earth.esa.int/workshops/salzburg04/papers_posters/2C2_mitnik_83.pdf |
| Summary: | A combined use of SAR (ERS-1, ERS-2 and Envisat), visible and thermal infrared (NOAA AVHRR) and microwave radiometric (Aqua AMSR-E) images as well as the results of modeling were integrated to associate the SAR backscatter patterns observed in warm and cold seasons to physical and biological forcing processes between southern Sakhalin and northern Hokkaido-Kuril Islands. The Soya Warm Current front, a cold belt adjoining to the current from the north and synoptic-scale eddies propagating southeastward parallel to Hokkaido coast as well as spiral eddies in the Aniva Bay were studied in details. Spiral ice eddies the size of about 90 km with the spirals which in turn consist of 5-7 elliptical eddies the size of 7-10 km were found on ASAR images. The large-scale features of the ice eddies were also detected on AMSR-E images. The use of the multi-sensor synergetic approach improves and deepens interpretation of the SAR signatures. 1. |
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