Clean access, measurement and sampling of Antarctic subglacial lake environments

Antarctic subglacial lakes are thought to be extreme habitats for microbial life and may contain important records of ice sheet history and climate change within their lake floor sediments. To find whether or not this is true, and to answer the science questions that would follow, direct measurement...

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Published in:Reviews of Geophysics
Main Authors: Siegert, Martin, Clarke, Rachel, Mowlem, Matt, Ross, Neil, Hill, Christopher, Tait, Andrew, Hodgson, Dominic, Parnell, John, Tranter, Martyn, Pearce, David, Bentley, Michael, Cockell, Charles, Tsaloglou, Maria-Nefeli, Smith, Andrew, Woodward, John, Brito, Mario, Waugh, Edward
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union 2012
Subjects:
Online Access:https://nrl.northumbria.ac.uk/id/eprint/7071/
https://doi.org/10.1029/2011RG000361
https://nrl.northumbria.ac.uk/id/eprint/7071/1/2011RG000361.pdf
id ftunivnorthumb:oai:nrl.northumbria.ac.uk:7071
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spelling ftunivnorthumb:oai:nrl.northumbria.ac.uk:7071 2023-05-15T13:34:15+02:00 Clean access, measurement and sampling of Antarctic subglacial lake environments Siegert, Martin Clarke, Rachel Mowlem, Matt Ross, Neil Hill, Christopher Tait, Andrew Hodgson, Dominic Parnell, John Tranter, Martyn Pearce, David Bentley, Michael Cockell, Charles Tsaloglou, Maria-Nefeli Smith, Andrew Woodward, John Brito, Mario Waugh, Edward 2012-01-07 text https://nrl.northumbria.ac.uk/id/eprint/7071/ https://doi.org/10.1029/2011RG000361 https://nrl.northumbria.ac.uk/id/eprint/7071/1/2011RG000361.pdf en eng American Geophysical Union https://nrl.northumbria.ac.uk/id/eprint/7071/1/2011RG000361.pdf Siegert, Martin, Clarke, Rachel, Mowlem, Matt, Ross, Neil, Hill, Christopher, Tait, Andrew, Hodgson, Dominic, Parnell, John, Tranter, Martyn, Pearce, David, Bentley, Michael, Cockell, Charles, Tsaloglou, Maria-Nefeli, Smith, Andrew, Woodward, John, Brito, Mario and Waugh, Edward (2012) Clean access, measurement and sampling of Antarctic subglacial lake environments. Reviews of Geophysics, 50 (1). RG1003. ISSN 0096-1043 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2012 ftunivnorthumb https://doi.org/10.1029/2011RG000361 2022-09-25T05:53:43Z Antarctic subglacial lakes are thought to be extreme habitats for microbial life and may contain important records of ice sheet history and climate change within their lake floor sediments. To find whether or not this is true, and to answer the science questions that would follow, direct measurement and sampling of these environments are required. Ever since the water depth of Vostok Subglacial Lake was shown to be >500 m, attention has been given to how these unique, ancient, and pristine environments may be entered without contamination and adverse disturbance. Several organizations have offered guidelines on the desirable cleanliness and sterility requirements for direct sampling experiments, including the U.S. National Academy of Sciences and the Scientific Committee on Antarctic Research. Here we summarize the scientific protocols and methods being developed for the exploration of Ellsworth Subglacial Lake in West Antarctica, planned for 2012–2013, which we offer as a guide to future subglacial environment research missions. The proposed exploration involves accessing the lake using a hot-water drill and deploying a sampling probe and sediment corer to allow sample collection. We focus here on how this can be undertaken with minimal environmental impact while maximizing scientific return without compromising the environment for future experiments. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Scientific Committee on Antarctic Research West Antarctica Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Ellsworth Subglacial Lake ENVELOPE(-90.500,-90.500,-79.000,-79.000) Vostok Subglacial Lake ENVELOPE(106.000,106.000,-77.500,-77.500) West Antarctica Reviews of Geophysics 50 1
institution Open Polar
collection Northumbria University, Newcastle: Northumbria Research Link (NRL)
op_collection_id ftunivnorthumb
language English
topic F800 Physical and Terrestrial Geographical and Environmental Sciences
spellingShingle F800 Physical and Terrestrial Geographical and Environmental Sciences
Siegert, Martin
Clarke, Rachel
Mowlem, Matt
Ross, Neil
Hill, Christopher
Tait, Andrew
Hodgson, Dominic
Parnell, John
Tranter, Martyn
Pearce, David
Bentley, Michael
Cockell, Charles
Tsaloglou, Maria-Nefeli
Smith, Andrew
Woodward, John
Brito, Mario
Waugh, Edward
Clean access, measurement and sampling of Antarctic subglacial lake environments
topic_facet F800 Physical and Terrestrial Geographical and Environmental Sciences
description Antarctic subglacial lakes are thought to be extreme habitats for microbial life and may contain important records of ice sheet history and climate change within their lake floor sediments. To find whether or not this is true, and to answer the science questions that would follow, direct measurement and sampling of these environments are required. Ever since the water depth of Vostok Subglacial Lake was shown to be >500 m, attention has been given to how these unique, ancient, and pristine environments may be entered without contamination and adverse disturbance. Several organizations have offered guidelines on the desirable cleanliness and sterility requirements for direct sampling experiments, including the U.S. National Academy of Sciences and the Scientific Committee on Antarctic Research. Here we summarize the scientific protocols and methods being developed for the exploration of Ellsworth Subglacial Lake in West Antarctica, planned for 2012–2013, which we offer as a guide to future subglacial environment research missions. The proposed exploration involves accessing the lake using a hot-water drill and deploying a sampling probe and sediment corer to allow sample collection. We focus here on how this can be undertaken with minimal environmental impact while maximizing scientific return without compromising the environment for future experiments.
format Article in Journal/Newspaper
author Siegert, Martin
Clarke, Rachel
Mowlem, Matt
Ross, Neil
Hill, Christopher
Tait, Andrew
Hodgson, Dominic
Parnell, John
Tranter, Martyn
Pearce, David
Bentley, Michael
Cockell, Charles
Tsaloglou, Maria-Nefeli
Smith, Andrew
Woodward, John
Brito, Mario
Waugh, Edward
author_facet Siegert, Martin
Clarke, Rachel
Mowlem, Matt
Ross, Neil
Hill, Christopher
Tait, Andrew
Hodgson, Dominic
Parnell, John
Tranter, Martyn
Pearce, David
Bentley, Michael
Cockell, Charles
Tsaloglou, Maria-Nefeli
Smith, Andrew
Woodward, John
Brito, Mario
Waugh, Edward
author_sort Siegert, Martin
title Clean access, measurement and sampling of Antarctic subglacial lake environments
title_short Clean access, measurement and sampling of Antarctic subglacial lake environments
title_full Clean access, measurement and sampling of Antarctic subglacial lake environments
title_fullStr Clean access, measurement and sampling of Antarctic subglacial lake environments
title_full_unstemmed Clean access, measurement and sampling of Antarctic subglacial lake environments
title_sort clean access, measurement and sampling of antarctic subglacial lake environments
publisher American Geophysical Union
publishDate 2012
url https://nrl.northumbria.ac.uk/id/eprint/7071/
https://doi.org/10.1029/2011RG000361
https://nrl.northumbria.ac.uk/id/eprint/7071/1/2011RG000361.pdf
long_lat ENVELOPE(-90.500,-90.500,-79.000,-79.000)
ENVELOPE(106.000,106.000,-77.500,-77.500)
geographic Antarctic
Ellsworth Subglacial Lake
Vostok Subglacial Lake
West Antarctica
geographic_facet Antarctic
Ellsworth Subglacial Lake
Vostok Subglacial Lake
West Antarctica
genre Antarc*
Antarctic
Antarctica
Ice Sheet
Scientific Committee on Antarctic Research
West Antarctica
genre_facet Antarc*
Antarctic
Antarctica
Ice Sheet
Scientific Committee on Antarctic Research
West Antarctica
op_relation https://nrl.northumbria.ac.uk/id/eprint/7071/1/2011RG000361.pdf
Siegert, Martin, Clarke, Rachel, Mowlem, Matt, Ross, Neil, Hill, Christopher, Tait, Andrew, Hodgson, Dominic, Parnell, John, Tranter, Martyn, Pearce, David, Bentley, Michael, Cockell, Charles, Tsaloglou, Maria-Nefeli, Smith, Andrew, Woodward, John, Brito, Mario and Waugh, Edward (2012) Clean access, measurement and sampling of Antarctic subglacial lake environments. Reviews of Geophysics, 50 (1). RG1003. ISSN 0096-1043
op_doi https://doi.org/10.1029/2011RG000361
container_title Reviews of Geophysics
container_volume 50
container_issue 1
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