IceBridge Raw GPS Navigation Data for Antarctic Surveys

Antarctic GPS readings were collected using the Trimble Trimflite differential GPS Navigation System for the ICECAP project. The dataset includes latitude, longitude, track, ground speed, PDOP, GPS height, easting, northing, and time. Data collection was funded by the NSF, NERC, and NASA Operation IceBridge.

Use Cases

• Mapping aircraft flight paths and ground tracks over Antarctica using latitude, longitude, and track columns.
• Analyzing positional accuracy and measurement quality for geophysical surveys via the Positional Dilution of Precision (PDOP) metric.
• Calculating aircraft velocity and movement patterns for time-series analysis using ground speed and time columns.
• Referencing precise location data in a projected coordinate system using the easting and northing columns.

Strengths

• Data originates from a major, multi-agency scientific project (ICECAP) funded by NSF, NERC, and NASA.
• Provides high-precision differential GPS measurements including PDOP for accuracy assessment.
• Dataset is hosted on multiple authoritative platforms (nasa_earthdata, datagov), indicating established use.

Limitations

• Critical metadata such as row count, file size, and a complete column list are unavailable across all sources.
• Conflicting last updated dates exist between sources (2010-12-30 and 2026-03-13), creating uncertainty about data currency.
• License is ambiguously specified as 'other-license-specified' without clear terms for reuse.

Provenance

Source

Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project.

Collection Method

Collected using the Trimble Trimflite differential GPS Navigation System on aircraft.

Freshness

2026-03-13

Geography

Antarctica