A calibrated surface roughness estimate for Antarctica derived from MODIS satellite imagery. The 125-meter resolution MODIS Mosaic of Antarctica was calibrated against nadir laser altimetry data from Operation IceBridge and ICECAP projects. The dataset was last updated by AU_AADC in June 2019.
Use Cases
- Validate satellite-derived surface roughness models based on the calibration against laser altimeter data.
- Analyze spatial patterns of Antarctic surface roughness based on the 125-meter resolution MODIS mosaic.
- Study ice sheet topography and dynamics using the combined satellite and laser altimetry data.
- Assess the accuracy of remote sensing products for polar regions based on the described calibration process.
Strengths
- Derived from a 125-meter resolution satellite mosaic, suggesting a detailed spatial scale.
- Calibrated against direct laser altimetry measurements from Operation IceBridge and ICECAP, likely improving accuracy.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Last updated 2019-06-30 23:59:59.999000; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- AU_AADC
- Collection Method
- Calculated from MODIS Mosaic of Antarctica and calibrated against ICECAP and Operation IceBridge laser altimetry.
- Freshness
- Last updated 2019-06-30 23:59:59.999000.
- Geography
- Antarctica