Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment)
The Sea Ice Mass Balance in the Antarctic (SIMBA) experiment was conducted from the RVIB N.B. Palmer in September and October 2007 in the Bellingshausen Sea in an area recently experiencing considerable changes in both climate and sea ice cover. Snow and ice properties were observed at 3 short-term...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.815856 2024-09-15T17:48:05+00:00 Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) Lewis, Michael J Tison, Jean-Louis Weissling, Blake P Delille, Bruno Ackley, Stephen F Brabant, F Xie, Hongjie MEDIAN LATITUDE: -70.327622 * MEDIAN LONGITUDE: -92.006600 * SOUTH-BOUND LATITUDE: -70.635000 * WEST-BOUND LONGITUDE: -94.706000 * NORTH-BOUND LATITUDE: -69.995000 * EAST-BOUND LONGITUDE: -90.071000 * DATE/TIME START: 2007-09-25T18:35:00 * DATE/TIME END: 2007-10-22T00:00:00 2011 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.815856 https://doi.org/10.1594/PANGAEA.815856 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.815856 https://doi.org/10.1594/PANGAEA.815856 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Lewis, Michael J; Tison, Jean-Louis; Weissling, Blake P; Delille, Bruno; Ackley, Stephen F; Brabant, F; Xie, Hongjie (2011): Sea ice and snow cover characteristics during the winter–spring transition in the Bellingshausen Sea: An overview of SIMBA 2007. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1019-1038, https://doi.org/10.1016/j.dsr2.2010.10.027 International Polar Year (2007-2008) IPY dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81585610.1016/j.dsr2.2010.10.027 2024-07-24T02:31:21Z The Sea Ice Mass Balance in the Antarctic (SIMBA) experiment was conducted from the RVIB N.B. Palmer in September and October 2007 in the Bellingshausen Sea in an area recently experiencing considerable changes in both climate and sea ice cover. Snow and ice properties were observed at 3 short-term stations and a 27-day drift station (Ice Station Belgica, ISB) during the winter-spring transition. Repeat measurements were performed on sea ice and snow cover at 5 ISB sites, each having different physical characteristics, with mean ice (snow) thicknesses varying from 0.6 m (0.1 m) to 2.3 m (0.7 m). Ice cores retrieved every five days from 2 sites and measured for physical, biological, and chemical properties. Three ice mass-balance buoys (IMBs) provided continuous records of snow and ice thickness and temperature. Meteorological conditions changed from warm fronts with high winds and precipitation followed by cold and calm periods through four cycles during ISB. The snow cover regulated temperature flux and controlled the physical regime in which sea ice morphology changed. Level thin ice areas had little snow accumulation and experienced greater thermal fluctuations resulting in brine salinity and volume changes, and winter maximum thermodynamic growth of ~0.6 m in this region. Flooding and snow-ice formation occurred during cold spells in ice and snow of intermediate thickness. In contrast, little snow-ice formed in flooded areas with thicker ice and snow cover, instead nearly isothermal, highly permeable ice persisted. In spring, short-lived cold air episodes did not effectively penetrate the sea ice nor overcome the effect of ocean heat flux, thus favoring net ice thinning from bottom melt over ice thickening from snow-ice growth, in all cases. These warm ice conditions were consistent with regional remote sensing observations of earlier ice breakup and a shorter sea ice season, more recently observed in the Bellingshausen Sea. Other/Unknown Material Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-94.706000,-90.071000,-69.995000,-70.635000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Lewis, Michael J Tison, Jean-Louis Weissling, Blake P Delille, Bruno Ackley, Stephen F Brabant, F Xie, Hongjie Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
The Sea Ice Mass Balance in the Antarctic (SIMBA) experiment was conducted from the RVIB N.B. Palmer in September and October 2007 in the Bellingshausen Sea in an area recently experiencing considerable changes in both climate and sea ice cover. Snow and ice properties were observed at 3 short-term stations and a 27-day drift station (Ice Station Belgica, ISB) during the winter-spring transition. Repeat measurements were performed on sea ice and snow cover at 5 ISB sites, each having different physical characteristics, with mean ice (snow) thicknesses varying from 0.6 m (0.1 m) to 2.3 m (0.7 m). Ice cores retrieved every five days from 2 sites and measured for physical, biological, and chemical properties. Three ice mass-balance buoys (IMBs) provided continuous records of snow and ice thickness and temperature. Meteorological conditions changed from warm fronts with high winds and precipitation followed by cold and calm periods through four cycles during ISB. The snow cover regulated temperature flux and controlled the physical regime in which sea ice morphology changed. Level thin ice areas had little snow accumulation and experienced greater thermal fluctuations resulting in brine salinity and volume changes, and winter maximum thermodynamic growth of ~0.6 m in this region. Flooding and snow-ice formation occurred during cold spells in ice and snow of intermediate thickness. In contrast, little snow-ice formed in flooded areas with thicker ice and snow cover, instead nearly isothermal, highly permeable ice persisted. In spring, short-lived cold air episodes did not effectively penetrate the sea ice nor overcome the effect of ocean heat flux, thus favoring net ice thinning from bottom melt over ice thickening from snow-ice growth, in all cases. These warm ice conditions were consistent with regional remote sensing observations of earlier ice breakup and a shorter sea ice season, more recently observed in the Bellingshausen Sea. |
format |
Other/Unknown Material |
author |
Lewis, Michael J Tison, Jean-Louis Weissling, Blake P Delille, Bruno Ackley, Stephen F Brabant, F Xie, Hongjie |
author_facet |
Lewis, Michael J Tison, Jean-Louis Weissling, Blake P Delille, Bruno Ackley, Stephen F Brabant, F Xie, Hongjie |
author_sort |
Lewis, Michael J |
title |
Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
title_short |
Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
title_full |
Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
title_fullStr |
Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
title_full_unstemmed |
Ice and snow measurements during Nathaniel B. Palmer cruise NBP0709 (SIMBA experiment) |
title_sort |
ice and snow measurements during nathaniel b. palmer cruise nbp0709 (simba experiment) |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.815856 https://doi.org/10.1594/PANGAEA.815856 |
op_coverage |
MEDIAN LATITUDE: -70.327622 * MEDIAN LONGITUDE: -92.006600 * SOUTH-BOUND LATITUDE: -70.635000 * WEST-BOUND LONGITUDE: -94.706000 * NORTH-BOUND LATITUDE: -69.995000 * EAST-BOUND LONGITUDE: -90.071000 * DATE/TIME START: 2007-09-25T18:35:00 * DATE/TIME END: 2007-10-22T00:00:00 |
long_lat |
ENVELOPE(-94.706000,-90.071000,-69.995000,-70.635000) |
genre |
Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice |
genre_facet |
Antarc* Antarctic Bellingshausen Sea International Polar Year IPY Sea ice |
op_source |
Supplement to: Lewis, Michael J; Tison, Jean-Louis; Weissling, Blake P; Delille, Bruno; Ackley, Stephen F; Brabant, F; Xie, Hongjie (2011): Sea ice and snow cover characteristics during the winter–spring transition in the Bellingshausen Sea: An overview of SIMBA 2007. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1019-1038, https://doi.org/10.1016/j.dsr2.2010.10.027 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.815856 https://doi.org/10.1594/PANGAEA.815856 |
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.81585610.1016/j.dsr2.2010.10.027 |
_version_ |
1810289054851268608 |