Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011
The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November and December of 2011. Thirty-metre cross-profiles were established at each site, and snow depths were measured at 0.5 m intervals along the transect lines wit...
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Format: | Dataset |
Language: | English |
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PANGAEA
2021
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Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.933079 https://doi.org/10.1594/PANGAEA.933079 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933079 |
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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 Antarctic sea ice thickness: Harbinger of change in the Southern Ocean AntSeaIce Date/Time of event Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2011_1 McMurdo-2011_10 McMurdo-2011_11 McMurdo-2011_12 McMurdo-2011_13 McMurdo-2011_14 McMurdo-2011_15 McMurdo-2011_16 McMurdo-2011_17 McMurdo-2011_18 McMurdo-2011_19 McMurdo-2011_2 McMurdo-2011_20 McMurdo-2011_21 McMurdo-2011_22 McMurdo-2011_23 McMurdo-2011_24 McMurdo-2011_25 McMurdo-2011_26 McMurdo-2011_27 McMurdo-2011_28 McMurdo-2011_29 McMurdo-2011_3 McMurdo-2011_30 McMurdo-2011_31 McMurdo-2011_32 McMurdo-2011_33 McMurdo-2011_34 McMurdo-2011_35 McMurdo-2011_36 McMurdo-2011_37 McMurdo-2011_38 McMurdo-2011_39 McMurdo-2011_4 McMurdo-2011_40 McMurdo-2011_5 McMurdo-2011_6 McMurdo-2011_7 |
spellingShingle |
Antarctica Antarctic sea ice thickness: Harbinger of change in the Southern Ocean AntSeaIce Date/Time of event Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2011_1 McMurdo-2011_10 McMurdo-2011_11 McMurdo-2011_12 McMurdo-2011_13 McMurdo-2011_14 McMurdo-2011_15 McMurdo-2011_16 McMurdo-2011_17 McMurdo-2011_18 McMurdo-2011_19 McMurdo-2011_2 McMurdo-2011_20 McMurdo-2011_21 McMurdo-2011_22 McMurdo-2011_23 McMurdo-2011_24 McMurdo-2011_25 McMurdo-2011_26 McMurdo-2011_27 McMurdo-2011_28 McMurdo-2011_29 McMurdo-2011_3 McMurdo-2011_30 McMurdo-2011_31 McMurdo-2011_32 McMurdo-2011_33 McMurdo-2011_34 McMurdo-2011_35 McMurdo-2011_36 McMurdo-2011_37 McMurdo-2011_38 McMurdo-2011_39 McMurdo-2011_4 McMurdo-2011_40 McMurdo-2011_5 McMurdo-2011_6 McMurdo-2011_7 Langhorne, Patricia J Leonard, Gregory H Gough, Alexander J Hughes, Kenneth G Haas, Christian Beckers, Justin F Price, Daniel Barnsdale, Kelvin Rack, Wolfgang Brett, Gemma Marie Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 |
topic_facet |
Antarctica Antarctic sea ice thickness: Harbinger of change in the Southern Ocean AntSeaIce Date/Time of event Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2011_1 McMurdo-2011_10 McMurdo-2011_11 McMurdo-2011_12 McMurdo-2011_13 McMurdo-2011_14 McMurdo-2011_15 McMurdo-2011_16 McMurdo-2011_17 McMurdo-2011_18 McMurdo-2011_19 McMurdo-2011_2 McMurdo-2011_20 McMurdo-2011_21 McMurdo-2011_22 McMurdo-2011_23 McMurdo-2011_24 McMurdo-2011_25 McMurdo-2011_26 McMurdo-2011_27 McMurdo-2011_28 McMurdo-2011_29 McMurdo-2011_3 McMurdo-2011_30 McMurdo-2011_31 McMurdo-2011_32 McMurdo-2011_33 McMurdo-2011_34 McMurdo-2011_35 McMurdo-2011_36 McMurdo-2011_37 McMurdo-2011_38 McMurdo-2011_39 McMurdo-2011_4 McMurdo-2011_40 McMurdo-2011_5 McMurdo-2011_6 McMurdo-2011_7 |
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 and December of 2011. 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 metal ruler. 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 5 km apart. |
format |
Dataset |
author |
Langhorne, Patricia J Leonard, Gregory H Gough, Alexander J Hughes, Kenneth G Haas, Christian Beckers, Justin F Price, Daniel Barnsdale, Kelvin Rack, Wolfgang Brett, Gemma Marie |
author_facet |
Langhorne, Patricia J Leonard, Gregory H Gough, Alexander J Hughes, Kenneth G Haas, Christian Beckers, Justin F Price, Daniel Barnsdale, Kelvin Rack, Wolfgang Brett, Gemma Marie |
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/December 2011 |
title_short |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 |
title_full |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 |
title_fullStr |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 |
title_full_unstemmed |
Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 |
title_sort |
drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in mcmurdo sound - november/december 2011 |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.933079 https://doi.org/10.1594/PANGAEA.933079 |
op_coverage |
MEDIAN LATITUDE: -77.760722 * MEDIAN LONGITUDE: 165.648395 * SOUTH-BOUND LATITUDE: -77.873333 * WEST-BOUND LONGITUDE: 164.800000 * NORTH-BOUND LATITUDE: -77.566700 * EAST-BOUND LONGITUDE: 166.500000 * DATE/TIME START: 2011-11-23T00:00:00 * DATE/TIME END: 2011-12-05T00:00:00 |
long_lat |
ENVELOPE(164.800000,166.500000,-77.566700,-77.873333) |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica Antarctica Journal Journal of Glaciology McMurdo Sound Sea ice Southern Ocean The Cryosphere The Cryosphere Discussions |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica Antarctica Journal Journal of Glaciology McMurdo Sound Sea ice Southern Ocean 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 Cheng, Chen; Jenkins, Adrian; Holland, Paul; Wang, Zhaomin; Liu, Chengyan; Xia, Ruibin (2019): Responses of sub-ice platelet layer thickening rate and frazil-ice concentration to variations in ice-shelf water supercooling in McMurdo Sound, Antarctica. The Cryosphere, 13(1), 265-280, https://doi.org/10.5194/tc-13-265-2019 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 Hughes, Kenneth G; Langhorne, Patricia J; Leonard, Gregory H; Stevens, Craig L (2014): Extension of an Ice Shelf Water plume model beneath sea ice with application in McMurdo Sound, Antarctica. Journal of Geophysical Research: Oceans, 119(12), 8662-8687, https://doi.org/10.1002/2013JC009411 Langhorne, Patricia J; Hughes, Kenneth G; Gough, Alexander J; Smith, Inga J; Williams, Michael J M; Robinson, Natalie J; Stevens, Craig L; Rack, Wolfgang; Price, Daniel; Leonard, Gregory H; Mahoney, Andrew R; Haas, Christian; Haskell, Timothy G (2015): Observed platelet ice distributions in Antarctic sea ice: An index for ocean-ice shelf heat flux. Geophysical Research Letters, 42(13), 5442-5451, https://doi.org/10.1002/2015GL064508 Price, Daniel; Beckers, Justin; Ricker, Robert; Kurtz, N T; Rack, Wolfgang; Haas, Christian; Helm, Veit; Hendricks, Stefan; Leonard, Gregory H; Langhorne, Patricia J (2015): Evaluation of CryoSat-2 derived sea-ice freeboard over fast ice in McMurdo Sound, Antarctica. Journal of Glaciology, 61(226), 285-300, https://doi.org/10.3189/2015JoG14J157 Price, Daniel; Soltanzadeh, Iman; Rack, Wolfgang; Dale, Ethan (2019): Snow-driven uncertainty in CryoSat-2-derived Antarctic sea ice thickness – insights from McMurdo Sound. The Cryosphere, 13(4), 1409-1422, https://doi.org/10.5194/tc-13-1409-2019 https://doi.pangaea.de/10.1594/PANGAEA.933079 https://doi.org/10.1594/PANGAEA.933079 |
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.93307910.1029/2019JC01567810.5194/tc-2021-6110.5194/tc-15-4099-202110.5194/tc-13-265-201910.5194/tc-15-247-202110.1017/aog.2020.5410.1002/2013JC00941110.1002/2015GL06450810.3189/2015JoG14J15710.5194/tc-13-1409-2019 |
_version_ |
1810484252797566976 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933079 2024-09-15T17:40:02+00:00 Drill hole measurements of fast ice and sub-ice platelet layer thickness, and snow depth in McMurdo Sound - November/December 2011 Langhorne, Patricia J Leonard, Gregory H Gough, Alexander J Hughes, Kenneth G Haas, Christian Beckers, Justin F Price, Daniel Barnsdale, Kelvin Rack, Wolfgang Brett, Gemma Marie MEDIAN LATITUDE: -77.760722 * MEDIAN LONGITUDE: 165.648395 * SOUTH-BOUND LATITUDE: -77.873333 * WEST-BOUND LONGITUDE: 164.800000 * NORTH-BOUND LATITUDE: -77.566700 * EAST-BOUND LONGITUDE: 166.500000 * DATE/TIME START: 2011-11-23T00:00:00 * DATE/TIME END: 2011-12-05T00:00:00 2021 text/tab-separated-values, 215 data points https://doi.pangaea.de/10.1594/PANGAEA.933079 https://doi.org/10.1594/PANGAEA.933079 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 Cheng, Chen; Jenkins, Adrian; Holland, Paul; Wang, Zhaomin; Liu, Chengyan; Xia, Ruibin (2019): Responses of sub-ice platelet layer thickening rate and frazil-ice concentration to variations in ice-shelf water supercooling in McMurdo Sound, Antarctica. The Cryosphere, 13(1), 265-280, https://doi.org/10.5194/tc-13-265-2019 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 Hughes, Kenneth G; Langhorne, Patricia J; Leonard, Gregory H; Stevens, Craig L (2014): Extension of an Ice Shelf Water plume model beneath sea ice with application in McMurdo Sound, Antarctica. Journal of Geophysical Research: Oceans, 119(12), 8662-8687, https://doi.org/10.1002/2013JC009411 Langhorne, Patricia J; Hughes, Kenneth G; Gough, Alexander J; Smith, Inga J; Williams, Michael J M; Robinson, Natalie J; Stevens, Craig L; Rack, Wolfgang; Price, Daniel; Leonard, Gregory H; Mahoney, Andrew R; Haas, Christian; Haskell, Timothy G (2015): Observed platelet ice distributions in Antarctic sea ice: An index for ocean-ice shelf heat flux. Geophysical Research Letters, 42(13), 5442-5451, https://doi.org/10.1002/2015GL064508 Price, Daniel; Beckers, Justin; Ricker, Robert; Kurtz, N T; Rack, Wolfgang; Haas, Christian; Helm, Veit; Hendricks, Stefan; Leonard, Gregory H; Langhorne, Patricia J (2015): Evaluation of CryoSat-2 derived sea-ice freeboard over fast ice in McMurdo Sound, Antarctica. Journal of Glaciology, 61(226), 285-300, https://doi.org/10.3189/2015JoG14J157 Price, Daniel; Soltanzadeh, Iman; Rack, Wolfgang; Dale, Ethan (2019): Snow-driven uncertainty in CryoSat-2-derived Antarctic sea ice thickness – insights from McMurdo Sound. The Cryosphere, 13(4), 1409-1422, https://doi.org/10.5194/tc-13-1409-2019 https://doi.pangaea.de/10.1594/PANGAEA.933079 https://doi.org/10.1594/PANGAEA.933079 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Antarctica Antarctic sea ice thickness: Harbinger of change in the Southern Ocean AntSeaIce Date/Time of event Event label Fast ice Freeboard ICEDRILL Ice drill Identification Latitude of event Longitude of event McMurdo-2011_1 McMurdo-2011_10 McMurdo-2011_11 McMurdo-2011_12 McMurdo-2011_13 McMurdo-2011_14 McMurdo-2011_15 McMurdo-2011_16 McMurdo-2011_17 McMurdo-2011_18 McMurdo-2011_19 McMurdo-2011_2 McMurdo-2011_20 McMurdo-2011_21 McMurdo-2011_22 McMurdo-2011_23 McMurdo-2011_24 McMurdo-2011_25 McMurdo-2011_26 McMurdo-2011_27 McMurdo-2011_28 McMurdo-2011_29 McMurdo-2011_3 McMurdo-2011_30 McMurdo-2011_31 McMurdo-2011_32 McMurdo-2011_33 McMurdo-2011_34 McMurdo-2011_35 McMurdo-2011_36 McMurdo-2011_37 McMurdo-2011_38 McMurdo-2011_39 McMurdo-2011_4 McMurdo-2011_40 McMurdo-2011_5 McMurdo-2011_6 McMurdo-2011_7 dataset 2021 ftpangaea https://doi.org/10.1594/PANGAEA.93307910.1029/2019JC01567810.5194/tc-2021-6110.5194/tc-15-4099-202110.5194/tc-13-265-201910.5194/tc-15-247-202110.1017/aog.2020.5410.1002/2013JC00941110.1002/2015GL06450810.3189/2015JoG14J15710.5194/tc-13-1409-2019 2024-07-24T02:31:34Z The thicknesses of sea ice and sub-ice platelet layer were measured at regular intervals on fast ice in McMurdo Sound, Antarctica in November and December of 2011. 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 metal ruler. 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 5 km apart. Dataset Annals of Glaciology Antarc* Antarctic Antarctica Antarctica Journal Journal of Glaciology McMurdo Sound Sea ice Southern Ocean The Cryosphere The Cryosphere Discussions PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(164.800000,166.500000,-77.566700,-77.873333) |