Exploring Antarctic subglacial lakes with RECoverable Autonomous Sonde(RECAS):Design and first field tests

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外文摘要：Conducting scientific drilling on subglacial lakes and obtaining samples of subglacial lake water holds great significance in unraveling the formation and evolution of Antarctic subglacial lakes and early Earth's life forms.Despite various approaches to access and directly sample subglacial water and sediments,clean access and exploration of subglacial lakes remain challenging.To address this concern,Jilin University has developed the RECoverable Autonomous Sonde(RECAS)prototype.This tech-nology enables sampling and in-situ detection of subglacial lake water while being isolated from the surface,thus minimizing the risk of pollution.Laboratory tests,including downward and upward drilling,long-running,remote-control,and cold-environ-ment assessments,were conducted to validate the sonde's principle and functionality.During the 38th Chinese National Antarctic Research Expedition,CHINARE(2021-2022 season),the RECAS prototype underwent testing on the flank region of Dålk glacier,10 km from Zhongshan Station in Antarctica.Three boreholes with depths of 200.3,183.2,and 133.5 m were successfully drilled,with the refrozen meltwater sealing the boreholes during the process.Approximately 600 mL of melted water samples were collected from each hole.Throughout the drilling tests,all systems of the RECAS prototype performed within the expected ranges.

外文关键词：

subglacial lakethermal drillingwater samplingAntarcticautonomous sonde

作者：

SUN YouHong、PAVEL Talalay、LI YuanSheng、YU HaiBin、WANG DongLiang、LI GuoPing、XU LiPing、GONG Da、WANG JiXin、WANG JianHua、WANG Ting、ZHANG Nan、WANG ZhiGang、CHEN YanJi、LIU YunChen、LI YaZhou、PENG ShiLin、SHI JianGuang、AN ChunLei、GE Qun、XU Jing、NI XiaoKang、CUI QiFeng、JIANG Qiang、MIKHAIL Sysoev、Yang Yang、WANG RuSheng、WEI XianZhe、WANG Yu、ZHU TianXin、DENG ZhiPeng、ALEXEY Markov、LI Bing、FAN XiaoPeng

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作者单位：

Polar Research Center,Jilin University,Changchun 130000,China

School of Engineering and Technology,China University of Geosciences,Beijing 100083,China

Polar Research Institute of China,Shanghai 200120,China

College of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310018,China

Aerospace System Engineering Shanghai,Shanghai 201109,China

Nanjing Institute of Astronomical Optics & Technology,National Astronomical Observatories,Chinese Academy of Sciences,Nanjing 210000,China

National Ocean Technology Center,Tianjin 300000,China

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基金：

National Key Research and Development Project of the Ministry of Science and Technology of ChinaNational Key Research and Development Project of the Ministry of Science and Technology of ChinaNational Natural ScienceFoundation of ChinaCHINARE forfield operations in Antarctica

项目编号：

2016YFC14003022023YFC281260241941005

出版年：

2024

DOI：

10.1007/s11431-023-2620-3

中国科学:技术科学(英文版)

中国科学院

中国科学:技术科学(英文版)

CSTPCDEI

影响因子：1.056

ISSN：1674-7321

年,卷(期)：2024.67(6)