Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012

Progress Code: completed Statement: Please see the Permeability worksheet in the Master_Permeability.xls spreadsheet for individual data points marked bad, as well as notes regarding why they were bad. In general, these data points were marked bad for one of three reasons. The first occurred when th...

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Format: Dataset
Language:unknown
Published: Australian Ocean Data Network
Subjects:
AMD
Online Access:https://researchdata.edu.au/fluid-permeability-measurements-australis-2012/2816526
id ftands:oai:ands.org.au::2816526
record_format openpolar
spelling ftands:oai:ands.org.au::2816526 2023-10-09T21:46:30+02:00 Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012 Spatial: westlimit=119.9257; southlimit=-64.4462; eastlimit=120.2508; northlimit=-64.392 Spatial: westlimit=120.8998; southlimit=-64.9586; eastlimit=121.0287; northlimit=-64.8769 Spatial: westlimit=119.9274; southlimit=-65.2904; eastlimit=120.0815; northlimit=-65.2585 Spatial: westlimit=118.3249; southlimit=-65.2643; eastlimit=119.0013; northlimit=-65.1421 Spatial: westlimit=115.7111; southlimit=-64.8722; eastlimit=116.8338; northlimit=-64.6789 Temporal: From 2012-09-26 to 2012-09-26 https://researchdata.edu.au/fluid-permeability-measurements-australis-2012/2816526 unknown Australian Ocean Data Network https://researchdata.edu.au/fluid-permeability-measurements-australis-2012/2816526 SIPEX_II_Fluid_Permeability Dataset DOI AU/AADC > Australian Antarctic Data Centre, Australia oceans EARTH SCIENCE &gt OCEANS &gt OCEAN TEMPERATURE &gt WATER TEMPERATURE SEA ICE &gt ICE TEMPERATURE SEA ICE CRYOSPHERE &gt Permeability SIPEX CORING DEVICES PRESSURE TRANSDUCERS R/V AA &gt R/V Aurora Australis AMD/AU AMD CEOS ACE/CRC OCEAN &gt SOUTHERN OCEAN CONTINENT &gt ANTARCTICA GEOGRAPHIC REGION &gt POLAR dataset ftands 2023-09-18T22:42:15Z Progress Code: completed Statement: Please see the Permeability worksheet in the Master_Permeability.xls spreadsheet for individual data points marked bad, as well as notes regarding why they were bad. In general, these data points were marked bad for one of three reasons. The first occurred when the sack hole was drilled too deep. Within the bottom few centimetres of ice the ice became too permeable to block the horizontal component of flow and insert the pressure transducer before the hole had filled to freeboard. Inserting the packer and deploying the pressure transducer typically took between 5 and 10 seconds, which on occasion was not fast enough. The second problem we encountered was a bottom slush layer below sites 7 and 8. At the beginning of each day a hole was drilled into the slush layer to verify the fluid flowed in and equalized with the freeboard as quickly as would be expected in the ocean. Additional data analysis, potentially including modelling work, will be required to determine the effect of this slush layer on the values recorded. The third problem occurred due to the rafted nature of floes. On occasion, attempts to auger through the ice for thickness measurement resulted in the discovery of a raft below the ice. In particular this was a problem at site 3. Following the discovery of this problem the presence of rafting became criteria in determining an appropriate worksite. Auger holes were created while scouting for worksites to look for rafting. Potential worksites with rafting were rejected in favour of another area. A 9 cm diameter Kovacs corer was used to drill holes partially through the ice. The core was removed, creating a pressure head in the hole. Packers made of ABS tubing wrapped with foam to create a tight seal were inserted into the holes to block the horizontal component of flow. A "Levelogger", which is a pressure transducer for monitoring well-water, created by Solinst, was then inserted into each hole to record the change in water level over time. Each Levelogger was ... Dataset Antarc* Antarctica aurora australis Sea ice Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean
institution Open Polar
collection Research Data Australia (Australian National Data Service - ANDS)
op_collection_id ftands
language unknown
topic oceans
EARTH SCIENCE &gt
OCEANS &gt
OCEAN TEMPERATURE &gt
WATER TEMPERATURE
SEA ICE &gt
ICE TEMPERATURE
SEA ICE
CRYOSPHERE &gt
Permeability
SIPEX
CORING DEVICES
PRESSURE TRANSDUCERS
R/V AA &gt
R/V Aurora Australis
AMD/AU
AMD
CEOS
ACE/CRC
OCEAN &gt
SOUTHERN OCEAN
CONTINENT &gt
ANTARCTICA
GEOGRAPHIC REGION &gt
POLAR
spellingShingle oceans
EARTH SCIENCE &gt
OCEANS &gt
OCEAN TEMPERATURE &gt
WATER TEMPERATURE
SEA ICE &gt
ICE TEMPERATURE
SEA ICE
CRYOSPHERE &gt
Permeability
SIPEX
CORING DEVICES
PRESSURE TRANSDUCERS
R/V AA &gt
R/V Aurora Australis
AMD/AU
AMD
CEOS
ACE/CRC
OCEAN &gt
SOUTHERN OCEAN
CONTINENT &gt
ANTARCTICA
GEOGRAPHIC REGION &gt
POLAR
Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
topic_facet oceans
EARTH SCIENCE &gt
OCEANS &gt
OCEAN TEMPERATURE &gt
WATER TEMPERATURE
SEA ICE &gt
ICE TEMPERATURE
SEA ICE
CRYOSPHERE &gt
Permeability
SIPEX
CORING DEVICES
PRESSURE TRANSDUCERS
R/V AA &gt
R/V Aurora Australis
AMD/AU
AMD
CEOS
ACE/CRC
OCEAN &gt
SOUTHERN OCEAN
CONTINENT &gt
ANTARCTICA
GEOGRAPHIC REGION &gt
POLAR
description Progress Code: completed Statement: Please see the Permeability worksheet in the Master_Permeability.xls spreadsheet for individual data points marked bad, as well as notes regarding why they were bad. In general, these data points were marked bad for one of three reasons. The first occurred when the sack hole was drilled too deep. Within the bottom few centimetres of ice the ice became too permeable to block the horizontal component of flow and insert the pressure transducer before the hole had filled to freeboard. Inserting the packer and deploying the pressure transducer typically took between 5 and 10 seconds, which on occasion was not fast enough. The second problem we encountered was a bottom slush layer below sites 7 and 8. At the beginning of each day a hole was drilled into the slush layer to verify the fluid flowed in and equalized with the freeboard as quickly as would be expected in the ocean. Additional data analysis, potentially including modelling work, will be required to determine the effect of this slush layer on the values recorded. The third problem occurred due to the rafted nature of floes. On occasion, attempts to auger through the ice for thickness measurement resulted in the discovery of a raft below the ice. In particular this was a problem at site 3. Following the discovery of this problem the presence of rafting became criteria in determining an appropriate worksite. Auger holes were created while scouting for worksites to look for rafting. Potential worksites with rafting were rejected in favour of another area. A 9 cm diameter Kovacs corer was used to drill holes partially through the ice. The core was removed, creating a pressure head in the hole. Packers made of ABS tubing wrapped with foam to create a tight seal were inserted into the holes to block the horizontal component of flow. A "Levelogger", which is a pressure transducer for monitoring well-water, created by Solinst, was then inserted into each hole to record the change in water level over time. Each Levelogger was ...
format Dataset
title Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
title_short Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
title_full Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
title_fullStr Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
title_full_unstemmed Fluid permeability measurements taken on vertical component of sea ice during the SIPEX II voyage of the Aurora Australis, 2012
title_sort fluid permeability measurements taken on vertical component of sea ice during the sipex ii voyage of the aurora australis, 2012
publisher Australian Ocean Data Network
url https://researchdata.edu.au/fluid-permeability-measurements-australis-2012/2816526
op_coverage Spatial: westlimit=119.9257; southlimit=-64.4462; eastlimit=120.2508; northlimit=-64.392
Spatial: westlimit=120.8998; southlimit=-64.9586; eastlimit=121.0287; northlimit=-64.8769
Spatial: westlimit=119.9274; southlimit=-65.2904; eastlimit=120.0815; northlimit=-65.2585
Spatial: westlimit=118.3249; southlimit=-65.2643; eastlimit=119.0013; northlimit=-65.1421
Spatial: westlimit=115.7111; southlimit=-64.8722; eastlimit=116.8338; northlimit=-64.6789
Temporal: From 2012-09-26 to 2012-09-26
geographic Southern Ocean
geographic_facet Southern Ocean
genre Antarc*
Antarctica
aurora australis
Sea ice
Southern Ocean
genre_facet Antarc*
Antarctica
aurora australis
Sea ice
Southern Ocean
op_source AU/AADC > Australian Antarctic Data Centre, Australia
op_relation https://researchdata.edu.au/fluid-permeability-measurements-australis-2012/2816526
SIPEX_II_Fluid_Permeability
Dataset DOI
_version_ 1779322208441597952