Published May 7, 2024
| Version v1
Dataset
Open
Data accompanying manuscript: 'Antarctic subglacial topography mapped from space reveals complex mesoscale landscape dynamics'
Description
This upload contains the data which accompanies the manuscript: 'Antarctic subglacial topography mapped from space reveals complex mesoscale landscape dynamics'.
Metrics calculated for each of the 4269 50 km by 50 km regions
| Filename (IFPA) | Filename (Bedmachine) | Filename (Bedmap3) | Description |
| x_ifpa.nc y_ifpa.nc |
X and Y coordinates | ||
| mean_ifpa.nc or ifpa_mean.nc | bedmach_mean.nc | Mean elevation (m) | |
|
ifpa_count.nc |
bedmach_count.nc bedmach_count_max_20.nc bedmach_count_max_100.nc bedmach_count_max_250.nc |
The number of hills with a 50 m prominence within a 5 km neighbourhood |
|
| ifpa_b1_5km.nc ifpa_b1_thickness.nc |
bedmach_b1_5km.nc bedmach_b1_thickness.nc |
The fourier fractal dimension for wavelengths greater than 5 km or the ice thickness respectively | |
| ifpa_std_deslope.nc i_std_l.nc |
bedmach_std_deslope.nc b_std_l.nc |
The standard deviation: - with the best fit slope removed - of some long wavelength components of the fourier spectrum |
|
| ifpa_wav_max_power.nc | bedmach_wav_max_power.nc | The wavelength in the Fourier spectrum with the maximum power | |
| ifpa_rms_slope.nc i_rms_slope_h.nc |
bedmach_rms_slope.nc b_rms_slope_h.nc |
The RMS slope of: - the bed elevation - some short wavelength components of the fourier spectrum |
|
| ifpa_rms_curvature.nc | bedmach_rms_curvature.nc | The RMS curvature of the bed elevation | |
| source.nc | The method used to calculate the bed topography (Bedmachine only) | ||
| mean_nearest.nc | The mean distance from each IFPA grid point to the nearest Bedmap3 data point | ||
| bedmap3_count.nc | The number of Bedmap3 data points within the region |
Datasets required for plotting
| Filename | Description |
| Groundingline_Antarctica_v2.shp | Antarctic grounding line |
| ECR_features.shp | Outline of significant features within the example regions chosen |
| IFPA_bed.nc | IFPA bed topography map for Antarctica |
Files
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(14.8 GB)
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md5:f99021d3148fd250e9db2776b6ebf73a
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md5:3c06447c804b5927b675d87e56b5059b
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Additional details
Funding
- University of Edinburgh, E4 DTP NE/S007407/1
- Natural Environment Research Council
- International Thwaites Glacier Collaboration (GHOST) NE/S006672
- Natural Environment Research Council
- International Thwaites Glacier Collaboration (GHOST) PLR 1738934
- National Science Foundation