Ocean-ice data from an Antarctic ice shelf water plume flowing beneath land-fast sea ice
Data from a measurement campaign examining the oceanic connection between an ice shelf cavity and sea ice. Here we present data from the ocean boundary-layer in an Ice Shelf Water outflow region from the Ross/McMurdo Ice Shelves. From a fast ice field camp during the Spring of 2015, we captured the kinematics of free-floating relatively large (in some cases 10s of mm in scale) ice crystals that were advecting and then settling upwards in a depositional layer on the sea ice underside (SIPL, sub-ice platelet layer). Simultaneously, we measured the background oceanic temperature, salinity, currents and turbulence structure. At the camp location the total water depth was 536 m, with the uppermost 50 m of the water column being in-situ super-cooled. Tidal flow speeds had an amplitude of around 0.1 m s-1 with dissipation rates in the under-ice boundary layer measured to be up to e=10-6 W kg-1. Acoustic sampling (200 kHz) identified backscatter from large, individually identifiable suspended crystals associated with crystal sizes larger than normally described as frazil. Crystal sizes in the SIPL were also measured.
RELATED PUBLICATION: https://doi.org/10.3389/fmars.2023.1103740
GET DATA: https://doi.org/10.17882/90432
Simple
Identification info
- Date (Creation)
- 2023-08-17T12:26:01
- Date (Publication)
- 2015-10-01T00:00:00
- Citation identifier
- https://doi.org/10.17882/90432
- Presentation form
- Status
- Completed
- Point of contact - Custodian, Owner, etc
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Role Organisation Individual Electronic mail address Author Stevens, Craig. craig.stevens@niwa.co.nz Co-author Robinson, Natalie. natalie.robinson@niwa.co.nz Co-author O'Connor, Gabby. Co-author Grant, Brett. Publisher SEANOE
- Spatial representation type
- Topic category
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- Oceans
Extent
Temporal extent
- Time period
- 2015-10-21T00:00:00 2015-11-04T12:00:00
- Keywords
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- ICE SHELF WATER PLUME
- UNDER ICE BOUNDARY LAYER
- TURBULENT BOUNDARY LAYER
- FAST ICE
- SHEAR MICROSTRUCTURE
- SUB-ICE PLATELET LAYER
- FRAZIL ICE
- INSTALLATION
- K131A
- GCMD Earth Science and Earth Science Services Keywords
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- TURBIDITY
- CRYOSPHERE
- OCEAN TEMPERATURE
- OCEAN CURRENTS
- OCEAN SALINITY
- TURBULENCE
- GCMD Platform/Sources Keywords
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- Ice Shelf
- MOORINGS
- GCMD Locations Keywords
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- ANTARCTICA
- MCMURDO SOUND
- Resource constraints
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Legal constraints Access constraints Use constraints Constraint application scope This data set conforms to the CC BY Attribution License (https://creativecommons.org/licenses/by/4.0/) License License Dataset
- Language
- English
- Character encoding
- UTF8
- Supplemental Information
- Any additional comments about this dataset
Distribution Information
- Distribution format
-
- Metadata constraints
-
Legal constraints Access constraints Use constraints Constraint application scope This data set conforms to the CC BY Attribution License (https://creativecommons.org/licenses/by/4.0/) License License Metadata
Metadata
- Metadata identifier
- urn:uuid/5ae9058a-467a-4b2a-9f2d-6c611dd80cd3
- Language
- English
- Character encoding
- anyValidURI
- Metadata Contact
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Role Organisation Individual Electronic mail address Point of contact National Institute of Water and Atmospheric Research (NIWA) craig.stevens@niwa.co.nz
Type of resource
- Resource scope
- Dataset
- Metadata linkage
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Name Linkage (URL) Protocol Function Description https://www.seanoe.org/data/00792/90432/ Complete Metadata
- Date info (Revision)
- 2024-06-06T21:08:20
- Date info (Creation)
- 2023-08-17T00:24:05
Metadata standard
- Format name
- ISO 19115-1
- Edition
- 2018