Abstract:
These files are gridded topography, rates of surface elevation change, and errors as 500m and 1km posting determined from surface elevation measured by swath processing of data acquired by the interferometric radar altimeter CryoSat-2. The gridded products cover the Antarctic Ice Sheet between 2011 and 2016. These data have been processed by the University of Edinburgh and are made publicly available as part of a European Space Agency funded project involving the University of Edinburgh, isardSat UK, University of Leeds-CPOM, ENVEO. Gridded elevation and elevation change over the CryoSat-2 LRM sector of the Antarctic Ice Sheet are provided by CPOM.
Keywords:
Altimetry, Antarctic Ice Sheet, Climate, CryoSat-2, Elevation, Elevation change
Gourmelen, N., & Weissgerber, F. (2019). Swath-derived elevation and elevation change from CryoSat-2 over the Antarctic ice Sheet, 2011-2016 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/cdf7e028-0274-4db7-a2ec-180220b1dd71
| Access Constraints: | No restrictions apply. |
|---|---|
| Use Constraints: | This data is supplied under Open Government Licence v3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2019-12-20 |
|---|---|
| Dataset Progress: | Planned |
| Dataset Language: | English |
| ISO Topic Categories: |
|
| Parameters: |
|
| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Noel Gourmelen |
| Role(s) | Technical Contact, Investigator |
| Organisation | University of Edinburgh |
| Name | Flora Weissgerber |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of Edinburgh |
| Name | Maria Jose Escorihuela |
| Role(s) | Investigator |
| Organisation | isardSat |
| Name | Monica Roca |
| Role(s) | Investigator |
| Organisation | isardSat |
| Name | Anna Hogg |
| Role(s) | Investigator |
| Organisation | University of Leeds |
| Name | Jan Wuite |
| Role(s) | Investigator |
| Organisation | ENVEO |
| Name | Tom Nagler |
| Role(s) | Investigator |
| Organisation | ENVEO |
| Name | Mark Drinkwater |
| Role(s) | Investigator |
| Organisation | European Space Agency |
| Parent Dataset: | N/A |
| Reference: | Gourmelen, N, Escorihuela, M, Shepherd, A, Foresta, L, Muir, A, Garcia-Mondejar, A, Roca, M, Baker, S & Drinkwater, MR 2017, 'CryoSat-2 swath interferometric altimetry for mapping ice elevation and elevation change' Advances in Space Research. DOI: 10.1016/j.asr.2017.11.014 | |
|---|---|---|
| Quality: | Validation against operation ice bridge airborne laser altimeter returns a mean difference of 0.8 m, a median difference of 0.3 m, a standard deviation of 75.4 m and a median absolute deviation of 2.8 m. | |
| Lineage: | The gridded product have been generated from swath processing of CryoSat data, gridded using a regression accounting for time-dependant surface elevation change. The methodology is described in details in: Gourmelen, N, Escorihuela, M, Shepherd, A, Foresta, L, Muir, A, Garcia-Mondejar, A, Roca, M, Baker, S & Drinkwater, MR 2017, 'CryoSat-2 swath interferometric altimetry for mapping ice elevation and elevation change' Advances in Space Research. DOI: 10.1016/j.asr.2017.11.014 |
|
| Temporal Coverage: | |
|---|---|
| Start Date | 2011-01-01 |
| End Date | 2016-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -88 |
| Northernmost | -60 |
| Longitude | |
| Westernmost | -180 |
| Easternmost | 180 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Antarctic Ice Sheet |
| Data Collection: | CryoSat-2 spaceborne interferometric radar altimeter. |
|---|
| Data Storage: | Data are distributed as 6 geotiff files. |
|---|