Санкт-Петербургский государственный университет
Россия
GEOFEM
Россия
УДК 55 Геология. Геологические и геофизические науки
УДК 550.34 Сейсмология
УДК 550.383 Главное магнитное поле Земли
ГРНТИ 37.01 Общие вопросы геофизики
ГРНТИ 37.15 Геомагнетизм и высокие слои атмосферы
ГРНТИ 37.25 Океанология
ГРНТИ 37.31 Физика Земли
ГРНТИ 38.01 Общие вопросы геологии
ГРНТИ 36.00 ГЕОДЕЗИЯ. КАРТОГРАФИЯ
ГРНТИ 37.00 ГЕОФИЗИКА
ГРНТИ 38.00 ГЕОЛОГИЯ
ГРНТИ 39.00 ГЕОГРАФИЯ
ГРНТИ 52.00 ГОРНОЕ ДЕЛО
ОКСО 05.00.00 Науки о Земле
ББК 26 Науки о Земле
ТБК 63 Науки о Земле. Экология
BISAC SCI SCIENCE
The new Surface Water and Ocean Topography (SWOT) mission, featuring unprecedented resolution and precision, represents a new era in satellite altimetry and exploration of ocean eddy dynamics. This paper provides a specific test case for the inter-comparison of eddy fields in the open ocean and the Marginal Ice Zone in the Fram Strait, utilizing Synthetic Aperture Radar (SAR) data and a complementary Level 3 product from the SWOT altimetry mission. We identified and matched 7 occurrences of open ocean eddies from both data sources. A crucial and anticipated finding is that the SSHA fields demonstrate clear capability in resolving small (up to 10 km) submesoscale eddies. The comparison of the SAR and backscattering coefficient from the SWOT unsmoothed fields for the Marginal Ice Zone region revealed a generally good agreement between both data types and can be used by the researchers as complementary data sources.
SWOT, Sentinel-1, SAR, submesoscale-mesoscale eddies, Fram Strait
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