Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 4, pp. 181-188
Variability of frontal zones and short-period internal waves in the Barents and Kara Seas from satellite observations during the warm period of 2007
E.I. Svergun
1, 2 , A.V. Zimin
1 , O.A. Atadzhanova
1, 2 , A.A. Konik
1, 2 , E.V. Zubkova
2 , I.E. Kozlov
2, 3 1 P. P. Shirshov Institute of Oceanology RAS, Moscow, Russia
2 Russian State Hydrometeorological University, Saint Petersburg, Russia
3 Marine Hydrophysical Institute RAS, Sevastopol, Russia
Accepted: 28.05.2018
DOI: 10.21046/2070-7401-2018-15-4-181-188
In this work we analyze the influence of frontal zone dynamics on the generation and distribution of short-period internal waves (SIWs) in the Barents and the Kara Seas during an ice-free season based on analysis of satellite data. In the Barents Sea, marginal ice frontal zone and polar front zone are considered. They occupy up to 8 % of the total sea area. As shown, only 5 % of the total number of internal wave manifestations were recorded inside these frontal zones. In July, their number reaches 18 % in the marginal ice frontal zone. In the Kara Sea, estuarine and marginal ice frontal zones are considered, covering areas up to 10 % of the entire sea. On average, 18 % of the total number of SIW manifestations were observed inside frontal zone regions of the Kara Sea. The maximum number of internal waves (33 %) is observed in August in the most dynamic estuarine frontal zone, associated with the Ob and the Yenisei river runoff. Factors that determine the features of the space-time distribution of short-period internal waves in the regions of pronounced frontal dynamics are discussed.
Keywords: internal waves, frontal zones, satellite observations, the Barents Sea, the Kara Sea
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