Antarctic Ice Accumulation Histories And Divide Migration

Radar internal layer and ice sheet topography data for two Antarctic sites, along with model results from two studies. The dataset includes histories of divide migration and ice-surface evolution derived using geophysical inverse theory and a 2.5D flowband ice-flow model. Data was provided by AMD_USAPDC and last updated in 2004.

Use Cases

• Reconstruct transient accumulation patterns from multiple deeper internal layers using geophysical inverse theory.
• Model ice-surface evolution and divide migration histories with a 2.5D flowband ice-flow forward model.
• Analyze modern ice-surface velocities and ice-sheet geometry at the Taylor Mouth site.
• Validate inferred accumulation patterns, such as those from Waddington et al. (2007), against model solutions.

Strengths

• Includes both raw data for the inverse problem and the resulting model solutions.
• Contains multiple data types: internal layers, modern velocities, modern geometry, and inferred patterns.

Limitations

• Data is from 2004, potentially missing recent ice sheet changes.
• Specific sample size, row count, and geographic coordinates for the two sites are unknown.

Provenance

Source

NASA Earthdata via AMD_USAPDC.

Collection Method

Collected using radar and modeled with geophysical inverse theory and a 2.5D flowband ice-flow forward model.

Time Range

null

Freshness

2004-12-31

Geography

Two sites in Antarctica, including Taylor Mouth.