报告人：Sergey Popov（俄罗斯圣彼得堡大学 教授）

时间：2025年9月18日（周四）13:30-15:00

地点：测绘馆301会议室

报告简介：

The lecture provides a review of Russian geophysical research in Antarctica, as well as the subglacial lake studies. They are the most impressive geographical objects hidden under thick ice. Recent research revealed two types of lakes. The first one is stable. Their configuration does not change in time. The second type is active lakes. Their volume is changing due to outbursts from time to time. The most important and amazing one to research is Lake Vostok, which was discovered using the remote sensing technique. Russian and US researchers made a major contribution to the studying of the lake area. This research indicates that the surface area of the water body is 15,790 km², with elevation varying from −600 to −150 m. The average depth of Lake Vostok is approximately 400 m, with maximum depths reaching 1,200 m. The estimated volume of the water is around 6,100 km³. The lake contains 11 islands, covering a total area of 365 km², and an additional 56 isolated subglacial water bodies have been discovered around the lake.

报告人简介：

Dr. Sergey Popov is a leading geophysicist of the Department of the Geology and Mineral Resources of the Antarctic, Gramberg All-Russian Scientific Research Institute for Geology and Mineral Resources of the World Ocean, also he is professor of Saint Petersburg State University. For thirty years he has studied Antarctica by radio-echo sounding and GPR, also subglacial lakes, especially Lake Vostok.