BOTTOM TEMPERATURE MONITORING IN LAKE BAIKAL
A.D. Duchkov, S.A. Kazantsev, A.A. Duchkov
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Submarine methane vents; bottom temperature monitoring; autonomous temperature recorder; mathematical modeling of heat transfer; South Baikal basin; Lake Baikal
Pages: 371-377
Subsection: GEOPHYSICS
Abstract
We report results of bottom temperature monitoring of 2003-2004 in the deepwater South Baikal basin (Lake Baikal) near active gas-fluid methane vents at lake depths of 1020 and 1350 m. Sediments and water temperatures were measured using an autonomous temperature recorder designed at the Institute of Geophysics (Novosibirsk). Experiments implied short-duration recording and pioneering continuous 350 day-long monitoring near the Staryi vent. Measurements within a 1 m thick layer above and below the bottom showed notable variations in water (up to 0.07
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