141,450 km² of fast ice was mapped for East Antarctica in November 1997, increasing to 152,216 km² in November 1999. The dataset contains outer boundary maps created by applying an image correlation technique to RADARSAT ScanSAR data to distinguish stationary fast ice from moving pack ice. It was produced by the Australian Antarctic Data Centre (AU_AADC) for ASAC project 3024, with data from 1997 and 1999.
Use Cases
- Analyze changes in fast-ice area and boundaries between 1997 and 1999 for a longitudinal range of ~86°E-150.6°E.
- Classify fast-ice surface roughness characteristics using the calibrated radar backscatter data.
- Validate ice-ocean or climate models by comparing simulated fast-ice extent to the observed outer boundary maps.
- Study the correlation between stationary ice regions and adjacent moving pack ice using the underlying image correlation method.
Strengths
- Provides quantified fast-ice area for two years: 141,450 km² (1997) and 152,216 km² (1999).
- Offers the first detailed maps of fast ice for the East Antarctic region (75°E-170°E).
- Includes data on two distinct fast-ice classes based on surface roughness.
Limitations
- Limited temporal coverage with only two snapshots from November 1997 and November 1999.
- Spatial coverage is partial, with complete area calculations only for the overlapping range ~86°E-150.6°E.
- Unknown sample size, row count, and specific file formats for the boundary data.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC), ASAC project 3024.
- Collection Method
- Image correlation technique applied to RADARSAT ScanSAR images.
- Time Range
- November 1997, November 1999.
- Freshness
- null
- Geography
- East Antarctica, 75°E-170°E.