NASA 2012 GR GBMF Project: Airborne Gravity Measurements Over Greenland and Antarctica

NASA's 2012_GR_GBMF Project contains airborne gravity measurements collected over Greenland and Antarctica. The data was gathered using the Sander Geophysics AIRGrav system. It is hosted on AWS Open Data and requires an Earthdata Login account for access.

Use Cases

• Modeling ice sheet mass changes based on gravity anomaly data.
• Studying solid Earth structure and isostatic adjustment under polar ice sheets.
• Calibrating and validating satellite gravity missions (e.g., GRACE) with airborne measurements.
• Mapping subglacial topography and bedrock features from gravity data.

Strengths

• Data is collected using the specialized Sander Geophysics AIRGrav airborne gravity system.
• Covers two critical polar regions: Greenland and Antarctica.
• Available under a permissive CC-BY-4.0 license.
• Accessible via AWS Open Data for scalable cloud processing.

Limitations

• Row count, file size, and last update date are unknown, limiting suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection.

Provenance

Source

NASA

Collection Method

Airborne measurements from the Sander Geophysics AIRGrav system.

Time Range

Project year is 2012, but specific temporal coverage is unknown.

Freshness

Last updated date is unknown; freshness unverified.

Geography

Greenland and Antarctica.