NASA 2012 AN UTIG Project: Antarctic Gravity Measurements from ICECAP

NASA 2012_AN_UTIG Project data contains vertical acceleration and free air gravity disturbance measurements collected over Antarctica. The data were gathered by the ICECAP project, funded by the NSF and NERC with support from NASA Operation IceBridge. The dataset is hosted on AWS and requires an Earthdata Login account for access.

Use Cases

• Modeling Antarctic crustal structure based on free air gravity disturbances.
• Analyzing ice sheet mass changes using vertical acceleration measurements.
• Studying subglacial geology and bedrock topography from gravity data.
• Calibrating satellite-derived gravity models with in-situ airborne measurements.

Strengths

• Data originates from a major international scientific project (ICECAP) involving NASA, NSF, and NERC.
• Contains two distinct gravity-related measurement types: vertical acceleration and free air gravity disturbances.
• License is CC-BY-4.0, permitting broad reuse with attribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

ICECAP project (NSF, NERC, NASA Operation IceBridge)

Collection Method

Collected using CMG 1A and GT-1A S-019 gravity meters on airborne surveys.

Time Range

unknown

Freshness

unknown

Geography

Antarctica