Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica
Ice cores provide some of the best-dated and most comprehensive proxy records, as they yield a vast and growing array of proxy indicators. Selecting a site for ice core drilling is nonetheless challenging, as the assessment of potential new sites needs to consider a variety of factors. Here, we demo...
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Format: | Article in Journal/Newspaper |
Language: | English |
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2016
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Online Access: | http://hdl.handle.net/2152/41007 https://doi.org/10.15781/T29882P2D https://doi.org/10.5194/cp-12-595-2016 |
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ftunivtexas:oai:repositories.lib.utexas.edu:2152/41007 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
The University of Texas at Austin: Texas ScholarWorks |
op_collection_id |
ftunivtexas |
language |
English |
topic |
lambert glacier basin surface mass-balance multi-decadal variability snow accumulation rates southern annular mode wilhelm-ii-land law dome climate variability sheet enso geosciences multidisciplinary meteorology & atmospheric sciences |
spellingShingle |
lambert glacier basin surface mass-balance multi-decadal variability snow accumulation rates southern annular mode wilhelm-ii-land law dome climate variability sheet enso geosciences multidisciplinary meteorology & atmospheric sciences Vance, Tessa R. Roberts, Jason L. Moy, Andrew D. Curran, Mark A. J. Tozer, Carly R. Gallant, Ailie J. E. Abram, Nerilie J. van Ommen, Tas D. Young, Duncan A. Grima, Cyril Blankenship, Don D. Siegert, Martin J. Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
topic_facet |
lambert glacier basin surface mass-balance multi-decadal variability snow accumulation rates southern annular mode wilhelm-ii-land law dome climate variability sheet enso geosciences multidisciplinary meteorology & atmospheric sciences |
description |
Ice cores provide some of the best-dated and most comprehensive proxy records, as they yield a vast and growing array of proxy indicators. Selecting a site for ice core drilling is nonetheless challenging, as the assessment of potential new sites needs to consider a variety of factors. Here, we demonstrate a systematic approach to site selection for a new East Antarctic high-resolution ice core record. Specifically, seven criteria are considered: (1) 2000-year-old ice at 300 m depth; (2) above 1000 m elevation; (3) a minimum accumulation rate of 250 mm years(-1) IE (ice equivalent); (4) minimal surface reworking to preserve the deposited climate signal; (5) a site with minimal displacement or elevation change in ice at 300 m depth; (6) a strong teleconnection to midlatitude climate; and (7) an appropriately complementary relationship to the existing Law Dome record (a high-resolution record in East Antarctica). Once assessment of these physical characteristics identified promising regions, logistical considerations (for site access and ice core retrieval) were briefly considered. We use Antarctic surface mass balance syntheses, along with ground-truthing of satellite data by airborne radar surveys to produce all-of-Antarctica maps of surface roughness, age at specified depth, elevation and displacement change, and surface air temperature correlations to pinpoint promising locations. We also use the European Centre for Medium-Range Weather Forecast ERA 20th Century reanalysis (ERA-20C) to ensure that a site complementary to the Law Dome record is selected. We find three promising sites in the Indian Ocean sector of East Antarctica in the coastal zone from Enderby Land to the In-grid Christensen Coast (50-100 degrees E). Although we focus on East Antarctica for a new ice core site, the methodology is more generally applicable, and we include key parameters for all of Antarctica which may be useful for ice core site selection elsewhere and/or for other purposes. UK Natural Environment Research Council NE/D003733/1 NSF ANT-0733025 Jackson School of Geosciences G. Unger Vetlesen Foundation Australian Antarctic Division ASAC 3103, 4077, 4346 Australian Government's Cooperative Research Centres Programme through the Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC) PAGES WCRP Polar Climate Predictability Initiative (PCPI) Research Program Geological Sciences |
author2 |
Young, Duncan A. Grima, Cyril Blankenship, Don D. |
format |
Article in Journal/Newspaper |
author |
Vance, Tessa R. Roberts, Jason L. Moy, Andrew D. Curran, Mark A. J. Tozer, Carly R. Gallant, Ailie J. E. Abram, Nerilie J. van Ommen, Tas D. Young, Duncan A. Grima, Cyril Blankenship, Don D. Siegert, Martin J. |
author_facet |
Vance, Tessa R. Roberts, Jason L. Moy, Andrew D. Curran, Mark A. J. Tozer, Carly R. Gallant, Ailie J. E. Abram, Nerilie J. van Ommen, Tas D. Young, Duncan A. Grima, Cyril Blankenship, Don D. Siegert, Martin J. |
author_sort |
Vance, Tessa R. |
title |
Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
title_short |
Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
title_full |
Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
title_fullStr |
Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
title_full_unstemmed |
Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica |
title_sort |
optimal site selection for a high-resolution ice core record in east antarctica |
publishDate |
2016 |
url |
http://hdl.handle.net/2152/41007 https://doi.org/10.15781/T29882P2D https://doi.org/10.5194/cp-12-595-2016 |
long_lat |
ENVELOPE(47.867,47.867,-67.967,-67.967) ENVELOPE(112.833,112.833,-66.733,-66.733) ENVELOPE(67.490,67.490,-73.065,-73.065) ENVELOPE(90.000,90.000,-67.000,-67.000) |
geographic |
Antarctic The Antarctic East Antarctica Indian Christensen Law Dome Lambert Glacier Wilhelm II Land |
geographic_facet |
Antarctic The Antarctic East Antarctica Indian Christensen Law Dome Lambert Glacier Wilhelm II Land |
genre |
Antarc* Antarctic Antarctic Climate and Ecosystems Cooperative Research Centre Antarctica Australian Antarctic Division East Antarctica Enderby Land ice core Lambert Glacier Wilhelm II Land |
genre_facet |
Antarc* Antarctic Antarctic Climate and Ecosystems Cooperative Research Centre Antarctica Australian Antarctic Division East Antarctica Enderby Land ice core Lambert Glacier Wilhelm II Land |
op_relation |
Climate of the Past doi:10.15781/T29882P2D Vance, Tessa R., Jason L. Roberts, Andrew D. Moy, Mark AJ Curran, Carly R. Tozer, Ailie JE Gallant, Nerilie J. Abram et al. "Optimal site selection for a high-resolution ice core record in East Antarctica." Climate of the Past 12, no. 3 (Mar., 2016): 595. 1814-9324 http://hdl.handle.net/2152/41007 doi:10.5194/cp-12-595-2016 |
op_rights |
Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. Open |
op_doi |
https://doi.org/10.15781/T29882P2D https://doi.org/10.5194/cp-12-595-2016 |
_version_ |
1766200694492102656 |
spelling |
ftunivtexas:oai:repositories.lib.utexas.edu:2152/41007 2023-05-15T13:44:21+02:00 Optimal Site Selection for a High-Resolution Ice Core Record in East Antarctica Vance, Tessa R. Roberts, Jason L. Moy, Andrew D. Curran, Mark A. J. Tozer, Carly R. Gallant, Ailie J. E. Abram, Nerilie J. van Ommen, Tas D. Young, Duncan A. Grima, Cyril Blankenship, Don D. Siegert, Martin J. Young, Duncan A. Grima, Cyril Blankenship, Don D. 2016-03 application/pdf http://hdl.handle.net/2152/41007 https://doi.org/10.15781/T29882P2D https://doi.org/10.5194/cp-12-595-2016 English eng Climate of the Past doi:10.15781/T29882P2D Vance, Tessa R., Jason L. Roberts, Andrew D. Moy, Mark AJ Curran, Carly R. Tozer, Ailie JE Gallant, Nerilie J. Abram et al. "Optimal site selection for a high-resolution ice core record in East Antarctica." Climate of the Past 12, no. 3 (Mar., 2016): 595. 1814-9324 http://hdl.handle.net/2152/41007 doi:10.5194/cp-12-595-2016 Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. Open lambert glacier basin surface mass-balance multi-decadal variability snow accumulation rates southern annular mode wilhelm-ii-land law dome climate variability sheet enso geosciences multidisciplinary meteorology & atmospheric sciences Article 2016 ftunivtexas https://doi.org/10.15781/T29882P2D https://doi.org/10.5194/cp-12-595-2016 2020-12-23T22:03:21Z Ice cores provide some of the best-dated and most comprehensive proxy records, as they yield a vast and growing array of proxy indicators. Selecting a site for ice core drilling is nonetheless challenging, as the assessment of potential new sites needs to consider a variety of factors. Here, we demonstrate a systematic approach to site selection for a new East Antarctic high-resolution ice core record. Specifically, seven criteria are considered: (1) 2000-year-old ice at 300 m depth; (2) above 1000 m elevation; (3) a minimum accumulation rate of 250 mm years(-1) IE (ice equivalent); (4) minimal surface reworking to preserve the deposited climate signal; (5) a site with minimal displacement or elevation change in ice at 300 m depth; (6) a strong teleconnection to midlatitude climate; and (7) an appropriately complementary relationship to the existing Law Dome record (a high-resolution record in East Antarctica). Once assessment of these physical characteristics identified promising regions, logistical considerations (for site access and ice core retrieval) were briefly considered. We use Antarctic surface mass balance syntheses, along with ground-truthing of satellite data by airborne radar surveys to produce all-of-Antarctica maps of surface roughness, age at specified depth, elevation and displacement change, and surface air temperature correlations to pinpoint promising locations. We also use the European Centre for Medium-Range Weather Forecast ERA 20th Century reanalysis (ERA-20C) to ensure that a site complementary to the Law Dome record is selected. We find three promising sites in the Indian Ocean sector of East Antarctica in the coastal zone from Enderby Land to the In-grid Christensen Coast (50-100 degrees E). Although we focus on East Antarctica for a new ice core site, the methodology is more generally applicable, and we include key parameters for all of Antarctica which may be useful for ice core site selection elsewhere and/or for other purposes. UK Natural Environment Research Council NE/D003733/1 NSF ANT-0733025 Jackson School of Geosciences G. Unger Vetlesen Foundation Australian Antarctic Division ASAC 3103, 4077, 4346 Australian Government's Cooperative Research Centres Programme through the Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC) PAGES WCRP Polar Climate Predictability Initiative (PCPI) Research Program Geological Sciences Article in Journal/Newspaper Antarc* Antarctic Antarctic Climate and Ecosystems Cooperative Research Centre Antarctica Australian Antarctic Division East Antarctica Enderby Land ice core Lambert Glacier Wilhelm II Land The University of Texas at Austin: Texas ScholarWorks Antarctic The Antarctic East Antarctica Indian Christensen ENVELOPE(47.867,47.867,-67.967,-67.967) Law Dome ENVELOPE(112.833,112.833,-66.733,-66.733) Lambert Glacier ENVELOPE(67.490,67.490,-73.065,-73.065) Wilhelm II Land ENVELOPE(90.000,90.000,-67.000,-67.000) |