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GEOPHYSICAL RESEARCH LETTERS,
VOL. 33,
L09609,
5 PP., 2006
doi:10.1029/2005GL024974
Summer transport estimates of the Kamchatka Current derived as a variational inverse of hydrophysical and surface drifter data
International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, Alaska, USA
Pacific Marine Environmental Laboratory, Seattle, Washington, USA
Il'ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Science, Vladivostok, Russia
Department of Marine Science, University of Southern Mississippi, Stennis Space Center, Mississippi, USA
Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan
The quasistationary summer Bering Sea circulation is reconstructed as a variational inverse of the hydrographic and atmospheric climatologies, transport estimates through the Bering Strait, and surface drifter data. Our results indicate the splitting of the Kamchatka Current in the vicinity of the Shirshov Ridge. This branching is in agreement with independent ARGO drifter observations. It was also found, that transport of the Kamchatka Current gradually increases downstream from 14 Sv in the Olyutorsky Gulf to 24 Sv in the Kamchatka Strait, which is twice higher than previous estimates.
Received 23 October 2005; accepted 30 December 2005; published 12 May 2006.
Citation: (2006), Summer transport estimates of the Kamchatka Current derived as a variational inverse of hydrophysical and surface drifter data, Geophys. Res. Lett., 33, L09609, doi:10.1029/2005GL024974.
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