Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017
The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November of 2017. Thirty-metre cross-profiles were established at each site, and snow depths were measured at 0.5 m intervals along the transect lines with a MagnaProb...
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Format: | Dataset |
Language: | English |
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PANGAEA
2021
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.933076 https://doi.org/10.1594/PANGAEA.933076 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933076 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctica Date/Time of event Deep South National Science Challenge: Targeted observations and process-informed modeling of Antarctic sea ice Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2017_1 McMurdo-2017_11 McMurdo-2017_2 McMurdo-2017_20 McMurdo-2017_21 McMurdo-2017_22 McMurdo-2017_23 McMurdo-2017_24 McMurdo-2017_3 McMurdo-2017_4 McMurdo-2017_5 McMurdo-2017_6 McMurdo-2017_7 McMurdo-2017_70 McMurdo-2017_71 McMurdo-2017_72 McMurdo-2017_73 McMurdo-2017_74 McMurdo-2017_75 McMurdo-2017_76 McMurdo-2017_77 McMurdo-2017_EM31_1 McMurdo-2017_EM31_2 McMurdo Sound PIPERS Polynyas ice production and seasonal evolution in the Ross Sea Sea ice thickness Snow layer Snow thickness Sub-ice platelet layer Sub-ice platelet-layer thickness TOPOMASI |
spellingShingle |
Antarctica Date/Time of event Deep South National Science Challenge: Targeted observations and process-informed modeling of Antarctic sea ice Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2017_1 McMurdo-2017_11 McMurdo-2017_2 McMurdo-2017_20 McMurdo-2017_21 McMurdo-2017_22 McMurdo-2017_23 McMurdo-2017_24 McMurdo-2017_3 McMurdo-2017_4 McMurdo-2017_5 McMurdo-2017_6 McMurdo-2017_7 McMurdo-2017_70 McMurdo-2017_71 McMurdo-2017_72 McMurdo-2017_73 McMurdo-2017_74 McMurdo-2017_75 McMurdo-2017_76 McMurdo-2017_77 McMurdo-2017_EM31_1 McMurdo-2017_EM31_2 McMurdo Sound PIPERS Polynyas ice production and seasonal evolution in the Ross Sea Sea ice thickness Snow layer Snow thickness Sub-ice platelet layer Sub-ice platelet-layer thickness TOPOMASI Langhorne, Patricia J Leonard, Gregory H Brett, Gemma Marie Rack, Wolfgang Haas, Christian Fraser, Eamon Xie, Hongjie Bault, Jennifer Gao, Yongli Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
topic_facet |
Antarctica Date/Time of event Deep South National Science Challenge: Targeted observations and process-informed modeling of Antarctic sea ice Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2017_1 McMurdo-2017_11 McMurdo-2017_2 McMurdo-2017_20 McMurdo-2017_21 McMurdo-2017_22 McMurdo-2017_23 McMurdo-2017_24 McMurdo-2017_3 McMurdo-2017_4 McMurdo-2017_5 McMurdo-2017_6 McMurdo-2017_7 McMurdo-2017_70 McMurdo-2017_71 McMurdo-2017_72 McMurdo-2017_73 McMurdo-2017_74 McMurdo-2017_75 McMurdo-2017_76 McMurdo-2017_77 McMurdo-2017_EM31_1 McMurdo-2017_EM31_2 McMurdo Sound PIPERS Polynyas ice production and seasonal evolution in the Ross Sea Sea ice thickness Snow layer Snow thickness Sub-ice platelet layer Sub-ice platelet-layer thickness TOPOMASI |
description |
The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November of 2017. Thirty-metre cross-profiles were established at each site, and snow depths were measured at 0.5 m intervals along the transect lines with a MagnaProbe. A mean snow depth for each site was derived from these 120 measurements. Freeboard, sea ice thickness and sub-ice platelet layer thickness were recorded at five locations at each site - at the central crossing point and at the end points of each transect. The mean of these was then calculated and taken as representative of the site. Ice thicknesses were measured by using a tape measure with a brass T-anchor attached at the zero mark. This was deployed vertically through the drill-hole and allowed to rotate to a horizontal alignment when exiting the bottom of the drill-hole at the ice-ocean interface. From this position the anchor is slowly pulled upwards until some resistance is met and the first measurement is taken. This resistance is taken to mark the sub-ice platelet layer/ocean interface. The tape measure is then pulled harder, forcing the bar to pass through the sub-ice platelet layer until it sits flush against the sea ice/sub-ice platelet layer interface where a second measurement is taken. Measurement sites were about 10 km apart. |
format |
Dataset |
author |
Langhorne, Patricia J Leonard, Gregory H Brett, Gemma Marie Rack, Wolfgang Haas, Christian Fraser, Eamon Xie, Hongjie Bault, Jennifer Gao, Yongli |
author_facet |
Langhorne, Patricia J Leonard, Gregory H Brett, Gemma Marie Rack, Wolfgang Haas, Christian Fraser, Eamon Xie, Hongjie Bault, Jennifer Gao, Yongli |
author_sort |
Langhorne, Patricia J |
title |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
title_short |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
title_full |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
title_fullStr |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
title_full_unstemmed |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 |
title_sort |
drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in mcmurdo sound - november 2017 |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.933076 https://doi.org/10.1594/PANGAEA.933076 |
op_coverage |
MEDIAN LATITUDE: -77.627268 * MEDIAN LONGITUDE: 165.041891 * SOUTH-BOUND LATITUDE: -77.842300 * WEST-BOUND LONGITUDE: 163.802970 * NORTH-BOUND LATITUDE: -77.181894 * EAST-BOUND LONGITUDE: 166.400000 * DATE/TIME START: 2017-11-02T00:00:00 * DATE/TIME END: 2017-11-21T00:00:00 |
long_lat |
ENVELOPE(163.802970,166.400000,-77.181894,-77.842300) |
geographic |
Antarctic McMurdo Sound Ross Sea |
geographic_facet |
Antarctic McMurdo Sound Ross Sea |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica McMurdo Sound Ross Sea Sea ice The Cryosphere The Cryosphere Discussions |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica McMurdo Sound Ross Sea Sea ice The Cryosphere The Cryosphere Discussions |
op_relation |
Brett, Gemma Marie; Irvin, Anne; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J; Leonard, Gregory H (2020): Variability in the Distribution of Fast Ice and the Sub‐ice Platelet Layer Near McMurdo Ice Shelf. Journal of Geophysical Research: Oceans, 125(3), e2019JC015678, https://doi.org/10.1029/2019JC015678 Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J (in review): Winter growth and tidal variability of the sub-ice platelet layer observed with electromagnetic induction soundings. The Cryosphere Discussions, https://doi.org/10.5194/tc-2021-61 Brett, Gemma Marie; Price, Daniel; Rack, Wolfgang; Langhorne, Patricia J (2021): Satellite altimetry detection of ice-shelf-influenced fast ice. The Cryosphere, 15(8), 4099-4115, https://doi.org/10.5194/tc-15-4099-2021 Haas, Christian; Langhorne, Patricia J; Rack, Wolfgang; Leonard, Gregory H; Brett, Gemma Marie; Price, Daniel; Beckers, Justin F (2021): Airborne mapping of the sub-ice platelet layer under fast ice in McMurdo Sound, Antarctica. The Cryosphere, 15(1), 247-264, https://doi.org/10.5194/tc-15-247-2021 Hoppmann, Mario; Richter, Maren E; Smith, Inga J; Jendersie, Stefan; Langhorne, Patricia J; Thomas, David N; Dieckmann, Gerhard S (2020): Platelet ice, the Southern Ocean's hidden ice: a review. Annals of Glaciology, 61(83), 341-368, https://doi.org/10.1017/aog.2020.54 https://doi.pangaea.de/10.1594/PANGAEA.933076 https://doi.org/10.1594/PANGAEA.933076 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.93307610.1029/2019JC01567810.5194/tc-2021-6110.5194/tc-15-4099-202110.5194/tc-15-247-202110.1017/aog.2020.54 |
_version_ |
1811635649694924800 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933076 2024-09-30T14:22:49+00:00 Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November 2017 Langhorne, Patricia J Leonard, Gregory H Brett, Gemma Marie Rack, Wolfgang Haas, Christian Fraser, Eamon Xie, Hongjie Bault, Jennifer Gao, Yongli MEDIAN LATITUDE: -77.627268 * MEDIAN LONGITUDE: 165.041891 * SOUTH-BOUND LATITUDE: -77.842300 * WEST-BOUND LONGITUDE: 163.802970 * NORTH-BOUND LATITUDE: -77.181894 * EAST-BOUND LONGITUDE: 166.400000 * DATE/TIME START: 2017-11-02T00:00:00 * DATE/TIME END: 2017-11-21T00:00:00 2021 text/tab-separated-values, 115 data points https://doi.pangaea.de/10.1594/PANGAEA.933076 https://doi.org/10.1594/PANGAEA.933076 en eng PANGAEA Brett, Gemma Marie; Irvin, Anne; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J; Leonard, Gregory H (2020): Variability in the Distribution of Fast Ice and the Sub‐ice Platelet Layer Near McMurdo Ice Shelf. Journal of Geophysical Research: Oceans, 125(3), e2019JC015678, https://doi.org/10.1029/2019JC015678 Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J (in review): Winter growth and tidal variability of the sub-ice platelet layer observed with electromagnetic induction soundings. The Cryosphere Discussions, https://doi.org/10.5194/tc-2021-61 Brett, Gemma Marie; Price, Daniel; Rack, Wolfgang; Langhorne, Patricia J (2021): Satellite altimetry detection of ice-shelf-influenced fast ice. The Cryosphere, 15(8), 4099-4115, https://doi.org/10.5194/tc-15-4099-2021 Haas, Christian; Langhorne, Patricia J; Rack, Wolfgang; Leonard, Gregory H; Brett, Gemma Marie; Price, Daniel; Beckers, Justin F (2021): Airborne mapping of the sub-ice platelet layer under fast ice in McMurdo Sound, Antarctica. The Cryosphere, 15(1), 247-264, https://doi.org/10.5194/tc-15-247-2021 Hoppmann, Mario; Richter, Maren E; Smith, Inga J; Jendersie, Stefan; Langhorne, Patricia J; Thomas, David N; Dieckmann, Gerhard S (2020): Platelet ice, the Southern Ocean's hidden ice: a review. Annals of Glaciology, 61(83), 341-368, https://doi.org/10.1017/aog.2020.54 https://doi.pangaea.de/10.1594/PANGAEA.933076 https://doi.org/10.1594/PANGAEA.933076 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Antarctica Date/Time of event Deep South National Science Challenge: Targeted observations and process-informed modeling of Antarctic sea ice Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2017_1 McMurdo-2017_11 McMurdo-2017_2 McMurdo-2017_20 McMurdo-2017_21 McMurdo-2017_22 McMurdo-2017_23 McMurdo-2017_24 McMurdo-2017_3 McMurdo-2017_4 McMurdo-2017_5 McMurdo-2017_6 McMurdo-2017_7 McMurdo-2017_70 McMurdo-2017_71 McMurdo-2017_72 McMurdo-2017_73 McMurdo-2017_74 McMurdo-2017_75 McMurdo-2017_76 McMurdo-2017_77 McMurdo-2017_EM31_1 McMurdo-2017_EM31_2 McMurdo Sound PIPERS Polynyas ice production and seasonal evolution in the Ross Sea Sea ice thickness Snow layer Snow thickness Sub-ice platelet layer Sub-ice platelet-layer thickness TOPOMASI dataset 2021 ftpangaea https://doi.org/10.1594/PANGAEA.93307610.1029/2019JC01567810.5194/tc-2021-6110.5194/tc-15-4099-202110.5194/tc-15-247-202110.1017/aog.2020.54 2024-09-03T23:52:03Z The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November of 2017. Thirty-metre cross-profiles were established at each site, and snow depths were measured at 0.5 m intervals along the transect lines with a MagnaProbe. A mean snow depth for each site was derived from these 120 measurements. Freeboard, sea ice thickness and sub-ice platelet layer thickness were recorded at five locations at each site - at the central crossing point and at the end points of each transect. The mean of these was then calculated and taken as representative of the site. Ice thicknesses were measured by using a tape measure with a brass T-anchor attached at the zero mark. This was deployed vertically through the drill-hole and allowed to rotate to a horizontal alignment when exiting the bottom of the drill-hole at the ice-ocean interface. From this position the anchor is slowly pulled upwards until some resistance is met and the first measurement is taken. This resistance is taken to mark the sub-ice platelet layer/ocean interface. The tape measure is then pulled harder, forcing the bar to pass through the sub-ice platelet layer until it sits flush against the sea ice/sub-ice platelet layer interface where a second measurement is taken. Measurement sites were about 10 km apart. Dataset Annals of Glaciology Antarc* Antarctic Antarctica McMurdo Sound Ross Sea Sea ice The Cryosphere The Cryosphere Discussions PANGAEA - Data Publisher for Earth & Environmental Science Antarctic McMurdo Sound Ross Sea ENVELOPE(163.802970,166.400000,-77.181894,-77.842300) |