Dataset
ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity data for the Upernavik region for 1992 - 2010, v1.1 (April 2016 release)
Abstract
This dataset contains a time series of ice velocities for the Upernavik glacier in Greenland between 1992 and 2010. This dataset has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.
This dataset consists of a time series of Ice velocity maps which have been generated from SAR data from the ERS-1 and ERS-2, ENVISAT and the ALOS satellites. The data are supplied on a 500m polar stereographic grid. The ice velocity product contain the horizontal components, vN and vE, of the total velocity vector, which is derived from radar measurements assuming surface parallel flow. The used digital elevation model of the surface is also supplied. The North and East velocities at any grid points are given in a local geographic north-east coordinates system (and not in the used grid map projection system).
Details
| Previous Info: |
2016-11-29 Please note - a more recent version of this product is now available. Both datasets have accidentally been labelled v1.1, but t… Show More 2016-11-29 Please note - a more recent version of this product is now available. Both datasets have accidentally been labelled v1.1, but the later product should be used instead. The later product was released on the Greenland Ice Sheets download page in June 2016, but the earlier superceded product remained available through the CCI Open Data Portal and the CEDA archive until 29th November 2016. Please now use the later v1.1 product. Show Less |
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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: http://licences.ceda.ac.uk/image/data_access_condition/esacci_icesheets_greenland_terms_and_conditions.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were processed by the ESA CCI Greenland Ice Sheet project team and supplied to CEDA in the context of the ESA CCI Open Data Portal Project. |
| File Format: |
Data are NetCDF-4 formatted
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Process overview
- var_id: crs
- units: m/day
- var_id: land_ice_surface_east_velocity
- units: m/day
- var_id: land_ice_surface_east_velocity_std
- units: m/day
- var_id: land_ice_surface_north_velocity
- units: m/day
- var_id: land_ice_surface_north_velocity_std
- var_id: time_bnds
- units: m
- standard_name: height
- var_id: alt
- long_name: vertical distance above the surface
- units: m
- var_id: x
- standard_name: projection_x_coordinate
- long_name: x coordinate of projection
- units: m
- var_id: y
- standard_name: projection_y_coordinate
- long_name: y coordinate of projection
Co-ordinate Variables
- standard_name: time
- var_id: time
- long_name: Midpoint time of acquisitons used
Temporal Range
1992-01-02T00:00:00
2010-08-21T23:00:00
Geographic Extent
90.0000° |
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-80.0000° |
-10.0000° |
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60.0000° |