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Antarctica sea-ice thickness distributions derived from surface elevation compared to measured thickness values
| Content Provider | CiteSeerX |
|---|---|
| Author | Ackley, Stephen Ozsoy-Cicek, Burcu Xie, Hongjie |
| Abstract | Previous attempts to analyze IceSAT elevation data for Anttarctic sea ice thickness have had to rely on a separate, lower resolution satellite estimate of snow depth. Our technique, relying on the unique and high correlation of Snow Elevation and Snow Depth over the large proportion of the Antarctic sea ice cover, means instead that the IceSAT elevation measurement alone can be converted into Ice Thickness with potentially much lower errors than using other assumptions about snow depth. Because of the correlation, the elevation is also a strong predictor of the snow depth, making computations of snow depth distributions over Antarctic sea ice also possible. RMS error values in this method are small and can also be quantified based on the comparison to field data available from the cruise profiles analyzed here. Submarines, utilizing sonar, were originally used to find ice thickness in the Arctic and have shown the recent decline in sea ice thickness in the Arctic attributed to global warming. For the Antarctic, sea ice thickness, without submarine traverses, is unavailable on the regional or circumpolar scales. The ICEsat |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Snow Depth Antarctica Sea-ice Thickness Distribution Surface Elevation Thickness Value Ice Thickness Sea Ice Thickness Recent Decline Field Data High Correlation Rms Error Value Circumpolar Scale Resolution Satellite Estimate Global Warming Antarctic Sea Ice Cover Submarine Traverse Anttarctic Sea Ice Thickness Strong Predictor Large Proportion Icesat Elevation Measurement Snow Elevation Snow Depth Distribution Previous Attempt Antarctic Sea Ice Icesat Elevation Data |
| Content Type | Text |
