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.




Antarctica, ice shelf water plume, under ice boundary layer, turbulent boundary layer, frazil, fast ice, ice shelf, supercooled, shear microstructure


-77.623147N, -78.108054S, 167.637496E, 165.066696W






EK60.sav – ASCII files with timestamp in first line

Echo-data folder


Ascii cnv format with header information embedded.

Ctd-data folder

Mooring timeseries

Various ascii files

Mooring-data folder

Platelet data


Platelet-data folder

VMP turbulence

Ascii processed files (raw files available on request). .dat files are dissipation rate estimations, P.dat are temperature and conductivity profiles.

VMP-data folder


CTD, microstructure, crystal size, acho sounder data
1 GoTEXTQuality controlled data
How to cite
Stevens Craig, Robinson Natalie, O'connor Gabby, Grant Brett (2015). Ocean-ice data from an Antarctic ice shelf water plume flowing beneath land-fast sea ice. SEANOE. https://doi.org/10.17882/90432

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