Data

Meltrate of basal ice shelves at difference inclination

Australian Antarctic Data Centre
GAYEN, BISAKHDATTA ; MONDAL, MAINAK
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.4225/15/5b022497c7b72&rft.title=Meltrate of basal ice shelves at difference inclination&rft.identifier=10.4225/15/5b022497c7b72&rft.publisher=Australian Antarctic Data Centre&rft.description=Direct Numerical Simulation (DNS) was used to study the effect of sloping the ice-shelves on the dissolution/melt rate at the ice-ocean interface. The simulations were done on the HPC Raijin at NCI, Canberra over March 2015 to June 2017. Numerical experiments were carried out over a range of slope angle (5 degrees – 90 degrees) of the ice-shelves measured from the horizon. Turbulent flow field is simulated over the domain length of 1.8 m, (for slope angle greater than or equal to 50 degrees) and 20 m (for slope angle less than or equal to 20 degrees) respectively; the flow-field is laminar otherwise. A constant ambient temperature 2.3 degrees C and salinity 35 psu is maintained throughout the simulations. The DNS successfully resolved all possible turbulence length scales and relative contributions of diffusive and turbulent heat transfer into the ice wall is measured. Data available: Excel file Meltrate_vs_slopeangle_lam_turb.xlsx contains both simulated laminar and turbulent dissolution/melt rate as a function of slope angle along with their analytical values based on laminar and turbulent scaling theory respectively.&rft.creator=GAYEN, BISAKHDATTA &rft.creator=MONDAL, MAINAK &rft.date=2018&rft.coverage=northlimit=-60; southlimit=-90; westlimit=-180; eastLimit=180; projection=WGS84&rft.coverage=northlimit=-60; southlimit=-90; westlimit=-180; eastLimit=180; projection=WGS84&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4422_Slope_Meltrate when using these data.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=oceans&rft_subject=ICE SHEETS&rft_subject=EARTH SCIENCE&rft_subject=CRYOSPHERE&rft_subject=GLACIERS/ICE SHEETS&rft_subject=EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS > ICE SHEET MEASUREMENTS&rft_subject=SALINITY&rft_subject=SEA ICE&rft_subject=SNOW/ICE TEMPERATURE&rft_subject=SNOW/ICE&rft_subject=DIRECT NUMERICAL SIMULATION&rft_subject=DNS&rft_subject=SLOPE ANGLE&rft_subject=MELT RATE&rft_subject=Computer > Computer&rft_subject=MODELS&rft_subject=EARTH SCIENCE SERVICES&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA&rft_subject=OCEAN > SOUTHERN OCEAN&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4422_Slope_Meltrate when using these data.

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Brief description

Direct Numerical Simulation (DNS) was used to study the effect of sloping the ice-shelves on the dissolution/melt rate at the ice-ocean interface. The simulations were done on the HPC Raijin at NCI, Canberra over March 2015 to June 2017.

Numerical experiments were carried out over a range of slope angle (5 degrees – 90 degrees) of the ice-shelves measured from the horizon. Turbulent flow field is simulated over the domain length of 1.8 m, (for slope angle greater than or equal to 50 degrees) and 20 m (for slope angle less than or equal to 20 degrees) respectively; the flow-field is laminar otherwise. A constant ambient temperature 2.3 degrees C and salinity 35 psu is maintained throughout the simulations.

The DNS successfully resolved all possible turbulence length scales and relative contributions of diffusive and turbulent heat transfer into the ice wall is measured.

Data available:

Excel file Meltrate_vs_slopeangle_lam_turb.xlsx contains both simulated laminar and turbulent dissolution/melt rate as a function of slope angle along with their analytical values based on laminar and turbulent scaling theory respectively.

Issued: 2018-05-21

Data time period: 2015-03-01 to 2017-06-30

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180,-60 180,-86 0,-86 -180,-86 -180,-60 0,-60 180,-60

0,-75

text: northlimit=-60; southlimit=-90; westlimit=-180; eastLimit=180; projection=WGS84

Subjects
CONTINENT > ANTARCTICA | CRYOSPHERE | Computer > Computer | DIRECT NUMERICAL SIMULATION | DNS | EARTH SCIENCE | EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS > ICE SHEET MEASUREMENTS | EARTH SCIENCE SERVICES | GEOGRAPHIC REGION > POLAR | GLACIERS/ICE SHEETS | ICE SHEETS | MELT RATE | MODELS | OCEAN > SOUTHERN OCEAN | SALINITY | SEA ICE | SLOPE ANGLE | SNOW/ICE | SNOW/ICE TEMPERATURE | climatologyMeteorologyAtmosphere | oceans |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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