Brief communication: New sonde to unravel the mystery of polar subglacial lakes
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Published:2023-03-06
Issue:3
Volume:17
Page:1089-1095
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
Sun Youhong, Li Bing, Fan Xiaopeng, Li Yuansheng, Li Guopin, Yu Haibin, Li Hongzhi, Wang Dongliang, Zhang Nan, Gong Da, Wang Rusheng, Li Yazhou, Talalay Pavel G.ORCID
Abstract
Abstract. The newly developed RECoverable Autonomous Sonde (RECAS)
allows sampling and analysis of subglacial water while the subglacial lake
remains isolated from the surface. The sonde was successfully tested in East Antarctica during the 2021–2022 field season: it reached the ice-sheet base at a depth of 200.3 m, sampled basal meltwater and measured its pressure, temperature, pH and conductivity and returned to the ice surface. The average downward penetration rate was 1.85 m h−1, and the average upward penetration rate was 2.94 m h−1. The successful test of a self-melting, recoverable probe in Antarctica marks further progress towards the clean exploration of subglacial water bodies.
Funder
Ministry of Science and Technology of the People's Republic of China National Natural Science Foundation of China
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
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