Dataset
EOCIS: Antarctica Ice Sheet Surface Elevation Change, v1.0
Abstract
This dataset contains Rates of Surface Elevation Change for the Antarctic Ice Sheet produced within the Earth Observation Climate Information Service (EOCIS) project.
Surface elevation change is provided as a 5x5 km grid over the land ice for the Antarctic Ice Sheet (excluding peripheral ice caps and glaciers) and includes drainage basins (Rignot et al., 2016), delivered as NetCDF files.
For future updates to this dataset, see the EOCIS CPOM page in the related documents section.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): http://creativecommons.org/licenses/by/4.0/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
This dataset was produced by the Centre for Polar Observation and Modelling in the context of the Earth Observation Climate Information Service project. |
| Data Quality: |
The spatial and temporal sampling of the data product is limited by the orbital characteristics of the satellite missions used to determine them. A data gap will occur at the poles for the earlier satellite missions, ERS-1, ERS-2 and Envisat (1992-2010), as they have a latitudinal limit of 81°. The pole hole reduces for CryoSat-2 (2010-present) with a latitudinal limit of 88°. It is also to be expected that the older missions will have higher uncertainties because they were ocean focused missions not designed to monitor ice sheets. CryoSat-2 was the first Cryosphere-specific mission.
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| File Format: |
NetCDF
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Process overview
| Title | Derivation of the EOCIS: Ice Sheet Surface Elevation, v1.0 |
| Abstract | Time-series calculated from radar altimetry measurements from ERS-1, ERS-2, ENVISAT (FDR4ALT v1), and CryoSat-2 (CryoTEMPO Baseline-C), using the method from Shepherd et al, doi:10.1029/2019GL082182. For more information on the EOCIS Ice Surface Elevation project see the documentation. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- var_id: x
- units: meters
- standard_name: projection_x_coordinate
- long_name: Cartesian x-coordinate - easting, of centre of each grid cell
- var_id: y
- units: meters
- standard_name: projection_y_coordinate
- long_name: Cartesian y-coordinate - northing, of centre of each grid cell
- var_id: basin_id
- long_name: Glacialogical basin identification number
- units: years
- var_id: end_time
- long_name: end time
- units: years
- var_id: cell_start_times
- long_name: first time in grid cell
- var_id: grid_projection
- units: years
- var_id: cell_end_times
- long_name: last time in grid cell
- units: years
- var_id: cell_time_lengths
- long_name: period covered by grid cell
- units: years
- var_id: start_time
- long_name: start time
- units: m/yr
- var_id: sec
- long_name: surface elevation change
- var_id: surface_type
- long_name: surface type from mask
- units: m/yr
- var_id: sec_uncertainty
- long_name: uncertainty in surface elevation change
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: lat
- long_name: latitude coordinate
- units: degrees_east
- standard_name: longitude
- var_id: lon
- long_name: longitude coordinate
Temporal Range
1991-07-30T00:00:00
2024-06-30T00:00:00
Geographic Extent
-60.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |