Rock Glacier Inventory of the South Shetland Islands

Eight active rock glaciers and seven protalus ramparts were documented across the South Shetland Islands, specifically on King George and Livingston Islands. This dataset, compiled by researchers and hosted by NASA, provides a record of these periglacial features in maritime Antarctica. The study notes these formations are located in recently deglaciated marginal zones, primarily below 70 meters above sea level.

Use Cases

• Analyzing the spatial distribution of rock glaciers relative to deglaciated zones and the Median Equilibrium Line Altitude (MELA).
• Studying indicators of recent activity diminution, such as blurred fronts, mass movements, and lichen colonization.
• Comparing the prevalence of rock glaciers in the periphery of Antarctica versus the continental interior.
• Investigating the climatic parameters, like a saturated active layer in summer, that facilitate periglacial processes in the region.
• Mapping specific rock glacier locations on peninsulas and capes, including references to sites on Fildes Peninsula and Admiralty Bay.

Strengths

• Documents a specific inventory of 8 active rock glaciers and 7 protalus ramparts, providing a concrete count for the study area.
• Includes detailed geomorphological observations on location, altitude (between 300 m asl and sea level), and signs of activity change.
• Synthesizes findings from multiple prior studies, indicating a consolidation of research on this topic in the South Shetland Islands.

Limitations

• Core dataset attributes like row count, column names, and file size are unknown across all platform sources.
• There is a conflict in the 'last updated' date, with one source listing 1997-12-31 and another listing 2026-03 12.
• The specific data collection methodology and the exact format of the underlying geospatial data are not detailed.

Provenance

Source

National Aeronautics and Space Administration (NASA).

Collection Method

Field investigation and synthesis of prior research, as indicated by citations to studies from 1981 to 1996 and an in-preparation work.

Time Range

Study period references research from at least 1981 to 1996, with indications of ongoing work.

Freshness

2026 -03-12 22:28:35.670131 (from datagov, though conflicts with an older date from nasa_earthdata)

Geography

South Shetland Islands, Antarctic Peninsula, specifically King George Island and Livingston Island, including peninsulas and capes.