Ground truth measurements of sea ice and overlying snow were collected at multiple sites around Ross Island, Antarctica. The SCIOPS fieldwork team measured seven main physical parameters, including thickness, temperature, density, salinity, and surface roughness. These in-situ measurements are intended for verifying theoretical models of microwave scattering, with supporting SAR imagery from October 2005.
Use Cases
- Modeling microwave backscatter by correlating SAR image intensity with measured sea ice brine volume and crystal size.
- Analyzing the influence of snow cover on radar signals by using snow thickness, density, and surface roughness measurements.
- Validating theoretical scattering models by comparing predicted returns against ground truth data for parameters like sea ice temperature and salinity.
- Studying spatial variability in sea ice properties by analyzing measurements linked to GPS coordinates from sites like Cape Evans and Turtle Rock.
Strengths
- Includes seven distinct, physically-measured parameter groups per site, such as thickness, temperature, and salinity.
- Covers multiple geographically distinct locations around Ross Island, including Scott Base and Cape Royds.
Limitations
- The exact sample size (number of measurement rows) is unknown, limiting statistical analysis.
- Data is from a specific timeframe (circa 2005), which may not represent current sea ice conditions.
- The relationship to the single-date Radarsat SAR image (Oct 27, 2005) may limit temporal analysis.
Provenance
- Source
- SCIOPS organization, collected via fieldwork.
- Collection Method
- In-situ ground measurements and sample collection at selected field sites, with GPS coordinates recorded.
- Time Range
- Fieldwork circa 2005, with supporting SAR image from October 27, 2005.
- Freshness
- null
- Geography
- Ross Island, Antarctica, including sites at Scott Base, McMurdo runway, Willy's Field, Turtle Rock, Cape Evans, and Cape Royds.