Sloping Ice Shelf Melt Boundary Layer Profiles

Direct Numerical Simulation data resolves turbulent flow and heat transfer at the ice-ocean interface for slope angles from 5 to 90 degrees. The dataset contains along-slope velocity, temperature, and salinity profiles from simulations run on the HPC Raijin between March 2015 and June 2017. The work was conducted by the Australian Antarctic Data Centre (AU_AADC).

Use Cases

• Analyze the relationship between slope_angle and along-slope_velocity profiles to understand flow acceleration effects on melt rates.
• Model the transfer of heat and salt by comparing wall_normal_distance profiles for temperature and salinity across different slope configurations.
• Validate turbulence closure schemes in climate models using the resolved diffusive and turbulent heat transfer contributions documented in the simulations.
• Study the transition from laminar to turbulent flow fields as a function of domain_length (1.8 m vs. 20 m) and slope_angle.

Strengths

• Data is derived from high-fidelity Direct Numerical Simulation (DNS) resolving all turbulence length scales.
• Covers a wide experimental range of slope_angle from 5 to 90 degrees.
• Simulations maintained constant ambient conditions of temperature 2.3°C and salinity 35 psu for controlled comparison.

Limitations

• Specific row count, column count, and dataset size are unknown.
• Profile data is only explicitly available for three slope angles (50, 65, and 90 degrees) in the provided file.
• Simulation data is from 2015-2017 and may not reflect current ice-ocean interaction models or observational comparisons.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC) via NASA EarthData.

Collection Method

Data generated via Direct Numerical Simulation (DNS) on the HPC Raijin at NCI, Canberra.

Time Range

Simulation period March 2015 to June 2017.

Freshness

Last updated 2017-06-30; static simulation output.

Geography

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