Three GPS networks measured three-dimensional deformation across active crevasses on the Amery Ice Shelf. Data collection occurred over a 12-day period from January 17 to 28, 2007. The project was conducted by the Australian Antarctic Data Centre (AU_AADC).
Use Cases
- Model fracture mechanics using GPS-derived three-dimensional deformation data across crevasses.
- Validate satellite-based synthetic aperture radar (SAR) imagery with in-situ GPS strain measurements.
- Analyze temporal strain evolution from time-series GPS data collected over a 12-day period.
- Study shear margin dynamics by examining deformation data from networks positioned in quadrilateral shapes.
- Correlate fracture processes with climate variability using combined GPS, seismic, and airborne radar datasets.
Strengths
- Data combines in-situ GPS, seismic, and satellite measurements for multi-instrument validation.
- Three distinct GPS networks provide spatial coverage across the shear margin.
- Measurements target active fracture zones, capturing direct deformation processes.
Limitations
- Limited temporal coverage from a single 12-day campaign in January 2007.
- Small spatial scope focused on the eastern side of the Amery Ice Shelf near Gillock Is.
- Unknown sample size and data completeness for the GPS records.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC), ASAC Project 2581.
- Collection Method
- Combination of in-situ GPS and seismic measurements with satellite optical/radar imagery and airborne ice radar.
- Time Range
- 2007-01 17 to 2007-01-28.
- Freshness
- null
- Geography
- Eastern shear margin of the Amery Ice Shelf, Antarctica, north of Gillock Is.