2018 data from the NASA Operation IceBridge campaigns contains gravity measurements from the Sander Geophysics AIRGrav system. The set includes acceleration data in three orthogonal directions, latitude, and Eotvos-corrected free air gravity anomaly values. It was produced by the NSIDC_CPRD organization.
Use Cases
- Calculate free air gravity anomalies from the provided Eotvos-corrected values for geophysical surveys.
- Analyze the three orthogonal acceleration data components to study sensor performance and flight path effects.
- Map gravity anomaly variations using latitude and corrected values to infer sub-ice topography or bedrock density.
- Apply the provided free air correction at different filtering scales to assess data smoothing impact on anomaly detection.
Strengths
- Data collected as part of the funded NASA Operation IceBridge campaigns, ensuring a specific scientific context.
- Includes gravity data processed with Eotvos correction and free air correction at multiple filtering scales for analysis flexibility.
Limitations
- Dataset size, row count, and specific geographic coverage are unknown, limiting assessment of scope.
- Data is from 2018 or earlier, potentially lacking recent observations for temporal change analysis.
Provenance
- Source
- NSIDC_CPRD (NASA National Snow and Ice Data Center Distributed Active Archive Center).
- Collection Method
- Collected via the Sander Geophysics AIRGrav airborne gravity system during Operation IceBridge aircraft campaigns.
- Time Range
- Collection dates unknown; data set published/updated in 2018.
- Freshness
- Last updated in November 2018; no update frequency specified.
- Geography
- Presumably over polar regions (Arctic/Antarctic) targeted by Operation IceBridge, but specific bounds unknown.