(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment
Although sea-ice extent in the Bellingshausen-Amundsen (BA) seas sector of the Antarctic has shown significant decline over several decades, there is not enough data to draw any conclusion on sea-ice thickness and its change for the BA sector, or for the entire Southern Ocean. This paper presents ou...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.842546 2024-09-15T17:48:06+00:00 (Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment Xie, Hongjie Ackley, Stephen F Yi, D Zwally, H Jay Wagner, P Weissling, Blake P Lewis, M Ye, K MEDIAN LATITUDE: -70.397200 * MEDIAN LONGITUDE: -91.946060 * SOUTH-BOUND LATITUDE: -70.635000 * WEST-BOUND LONGITUDE: -94.459100 * NORTH-BOUND LATITUDE: -70.245000 * EAST-BOUND LONGITUDE: -90.071000 * DATE/TIME START: 2007-09-25T18:35:00 * DATE/TIME END: 2007-10-01T00:00:00 2011 text/tab-separated-values, 30 data points https://doi.pangaea.de/10.1594/PANGAEA.842546 https://doi.org/10.1594/PANGAEA.842546 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.842546 https://doi.org/10.1594/PANGAEA.842546 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Xie, Hongjie; Ackley, Stephen F; Yi, D; Zwally, H Jay; Wagner, P; Weissling, Blake P; Lewis, M; Ye, K (2011): Sea-ice thickness distribution of the Bellingshausen Sea from surface measurements and ICESat altimetry. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1039-1051, https://doi.org/10.1016/j.dsr2.2010.10.038 Bellingshausen Sea Event label Freeboard ICE Ice station International Polar Year (2007-2008) IPY Latitude of event Longitude of event Nathaniel B. Palmer NBP0709 Number of measurements Sea ice thickness SIMBA SIMBA_Brussels SIMBA_Fabra SIMBA_Station-1 SIMBA_Station-2 SIMBA_Station-3 Snow thickness dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.84254610.1016/j.dsr2.2010.10.038 2024-07-24T02:31:33Z Although sea-ice extent in the Bellingshausen-Amundsen (BA) seas sector of the Antarctic has shown significant decline over several decades, there is not enough data to draw any conclusion on sea-ice thickness and its change for the BA sector, or for the entire Southern Ocean. This paper presents our results of snow and ice thickness distributions from the SIMBA 2007 experiment in the Bellingshausen Sea, using four different methods (ASPeCt ship observations, downward-looking camera imaging, ship-based electromagnetic induction (EM) sounding, and in situ measurements using ice drills). A snow freeboard and ice thickness model generated from in situ measurements was then applied to contemporaneous ICESat (satellite laser altimetry) measured freeboard to derive ice thickness at the ICESat footprint scale. Errors from in situ measurements and from ICESat freeboard estimations were incorporated into the model, so a thorough evaluation of the model and uncertainty of the ice thickness estimation from ICESat are possible. Our results indicate that ICESat derived snow freeboard and ice thickness distributions (asymmetrical unimodal tailing to right) for first-year ice (0.29 ± 0.14 m for mean snow freeboard and 1.06 ± 0.40 m for mean ice thickness), multi-year ice (0.48 ± 0.26 and 1.59 ± 0.75 m, respectively), and all ice together (0.42 ± 0.24 and 1.38 ± 0.70 m, respectively) for the study area seem reasonable compared with those values from the in situ measurements, ASPeCt observations, and EM measurements. The EM measurements can act as an appropriate supplement for ASPeCt observations taken hourly from the ship's bridge and provide reasonable ice and snow distributions under homogeneous ice conditions. Our proposed approaches: (1) of using empirical equations relating snow freeboard to ice thickness based on in situ measurements and (2) of using isostatic equations that replace snow depth with snow freeboard (or empirical equations that convert freeboard to snow depth), are efficient and important ways to derive ice ... Dataset Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-94.459100,-90.071000,-70.245000,-70.635000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Bellingshausen Sea Event label Freeboard ICE Ice station International Polar Year (2007-2008) IPY Latitude of event Longitude of event Nathaniel B. Palmer NBP0709 Number of measurements Sea ice thickness SIMBA SIMBA_Brussels SIMBA_Fabra SIMBA_Station-1 SIMBA_Station-2 SIMBA_Station-3 Snow thickness |
spellingShingle |
Bellingshausen Sea Event label Freeboard ICE Ice station International Polar Year (2007-2008) IPY Latitude of event Longitude of event Nathaniel B. Palmer NBP0709 Number of measurements Sea ice thickness SIMBA SIMBA_Brussels SIMBA_Fabra SIMBA_Station-1 SIMBA_Station-2 SIMBA_Station-3 Snow thickness Xie, Hongjie Ackley, Stephen F Yi, D Zwally, H Jay Wagner, P Weissling, Blake P Lewis, M Ye, K (Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
topic_facet |
Bellingshausen Sea Event label Freeboard ICE Ice station International Polar Year (2007-2008) IPY Latitude of event Longitude of event Nathaniel B. Palmer NBP0709 Number of measurements Sea ice thickness SIMBA SIMBA_Brussels SIMBA_Fabra SIMBA_Station-1 SIMBA_Station-2 SIMBA_Station-3 Snow thickness |
description |
Although sea-ice extent in the Bellingshausen-Amundsen (BA) seas sector of the Antarctic has shown significant decline over several decades, there is not enough data to draw any conclusion on sea-ice thickness and its change for the BA sector, or for the entire Southern Ocean. This paper presents our results of snow and ice thickness distributions from the SIMBA 2007 experiment in the Bellingshausen Sea, using four different methods (ASPeCt ship observations, downward-looking camera imaging, ship-based electromagnetic induction (EM) sounding, and in situ measurements using ice drills). A snow freeboard and ice thickness model generated from in situ measurements was then applied to contemporaneous ICESat (satellite laser altimetry) measured freeboard to derive ice thickness at the ICESat footprint scale. Errors from in situ measurements and from ICESat freeboard estimations were incorporated into the model, so a thorough evaluation of the model and uncertainty of the ice thickness estimation from ICESat are possible. Our results indicate that ICESat derived snow freeboard and ice thickness distributions (asymmetrical unimodal tailing to right) for first-year ice (0.29 ± 0.14 m for mean snow freeboard and 1.06 ± 0.40 m for mean ice thickness), multi-year ice (0.48 ± 0.26 and 1.59 ± 0.75 m, respectively), and all ice together (0.42 ± 0.24 and 1.38 ± 0.70 m, respectively) for the study area seem reasonable compared with those values from the in situ measurements, ASPeCt observations, and EM measurements. The EM measurements can act as an appropriate supplement for ASPeCt observations taken hourly from the ship's bridge and provide reasonable ice and snow distributions under homogeneous ice conditions. Our proposed approaches: (1) of using empirical equations relating snow freeboard to ice thickness based on in situ measurements and (2) of using isostatic equations that replace snow depth with snow freeboard (or empirical equations that convert freeboard to snow depth), are efficient and important ways to derive ice ... |
format |
Dataset |
author |
Xie, Hongjie Ackley, Stephen F Yi, D Zwally, H Jay Wagner, P Weissling, Blake P Lewis, M Ye, K |
author_facet |
Xie, Hongjie Ackley, Stephen F Yi, D Zwally, H Jay Wagner, P Weissling, Blake P Lewis, M Ye, K |
author_sort |
Xie, Hongjie |
title |
(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
title_short |
(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
title_full |
(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
title_fullStr |
(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
title_full_unstemmed |
(Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment |
title_sort |
(table 3) details of field-based ice and snow profile measurements from the simba 2007 experiment |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.842546 https://doi.org/10.1594/PANGAEA.842546 |
op_coverage |
MEDIAN LATITUDE: -70.397200 * MEDIAN LONGITUDE: -91.946060 * SOUTH-BOUND LATITUDE: -70.635000 * WEST-BOUND LONGITUDE: -94.459100 * NORTH-BOUND LATITUDE: -70.245000 * EAST-BOUND LONGITUDE: -90.071000 * DATE/TIME START: 2007-09-25T18:35:00 * DATE/TIME END: 2007-10-01T00:00:00 |
long_lat |
ENVELOPE(-94.459100,-90.071000,-70.245000,-70.635000) |
genre |
Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice Southern Ocean |
op_source |
Supplement to: Xie, Hongjie; Ackley, Stephen F; Yi, D; Zwally, H Jay; Wagner, P; Weissling, Blake P; Lewis, M; Ye, K (2011): Sea-ice thickness distribution of the Bellingshausen Sea from surface measurements and ICESat altimetry. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1039-1051, https://doi.org/10.1016/j.dsr2.2010.10.038 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.842546 https://doi.org/10.1594/PANGAEA.842546 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.84254610.1016/j.dsr2.2010.10.038 |
_version_ |
1810289146070040576 |