A note on eastern-boundary intensification of flow in Lake Vostok |
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Institution: | 1. College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing, Jiangsu 210098, China;2. Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China;3. Department of Civil and Environmental Engineering, Jackson State University, Jackson, MS 39217, USA;1. APL/JAMSTEC, Yokohama, Japan;2. IPRC, Univ. of Hawai‘i, Hawai‘i, USA;3. RCAST, Univ. of Tokyo, Tokyo, Japan |
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Abstract: | Based on the predictions of a simple hypothetical model it is proposed that the circulation within Lake Vostok is asymmetric, with a narrow boundary layer along the eastern wall and a diffuse counter-clockwise recirculation in the interior. This differs from a recent work by Wüest and Carmack Ocean Model. 2 (2000) 29], who predicted a symmetric, clockwise circulation in the lake. The predicted boundary-layer intensification is due to variation in the depth of the lake, which creates a dynamically important topographic β effect. The eastward intensification of the flow may have important implications for future studies of the lake's ecosystem. |
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