Dataset
ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity Time series for the Upernavik region, 1992-2010, v1.1 (June 2016 release)
Abstract
This dataset contains a time series of ice velocities for the Upernavik region in Greenland between 1992-2010, and has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.
The data consists of an ice velocity time series derived from intensity-tracking of ERS-1/2, ASAR and PALSAR data acquired between 02-01-1992 and 22-08-2010. It provides components of the ice velocity and the magnitude of the velocity.
The data are provided on a polar stereographic grid (EPSG3413: Latitude of true scale 70N, Reference Longitude 45E). The horizontal velocity is provided in true meters per day, towards the EASTING(x) and NOTHING(y) directions of the grid, and the vertical displacement (z), derived from a digital elevation model, is also provided. Please note that the previous versions of this product provided the horizontal velocities as true East and North velocities.
Both a single NetCDF file (including all measurements and annotation), and separate geotiff files with the velocity components are provided. The product was generated by GEUS. For further information please see the Product User Guide (v2.0).
Please note - this product was released on the Greenland Ice Sheets download page in June 2016, but an earlier product (also accidentally labelled v1.1) was available through the CCI Open Data Portal and the CEDA archive until 29th November 2016. Please now use the later v1.1 product.
Details
Previous Info: |
2016-11-29 Please note - this product was released on the Greenland Ice Sheets download page in June 2016, but an earlier product (also ac… Show More 2016-11-29 Please note - this product was released on the Greenland Ice Sheets download page in June 2016, but an earlier product (also accidentally labelled v1.1) was available through the CCI Open Data Portal and the CEDA archive until 29th November 2016. Please now use this 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(s): https://artefacts.ceda.ac.uk/licences/specific_licences/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 in NetCDF and GeoTiff
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Process overview
- var_id: crs
- units: m/day
- var_id: land_ice_surface_easting_velocity
- units: m/day
- var_id: land_ice_surface_easting_velocity_std
- units: m/day
- var_id: land_ice_surface_northing_velocity
- units: m/day
- var_id: land_ice_surface_northing_velocity_std
- units: m/day
- var_id: land_ice_surface_velocity_magnitude
- units: m/day
- var_id: land_ice_surface_velocity_magnitude_std
- units: m/day
- var_id: land_ice_surface_vertical_velocity
- var_id: time_bnds
- units: m
- var_id: x
- standard_name: projection_x_coordinate
- long_name: x coordinate of projection
- names: projection_x_coordinate, x coordinate of projection
- units: m
- var_id: y
- standard_name: projection_y_coordinate
- long_name: y coordinate of projection
- names: projection_y_coordinate, y coordinate of projection
Co-ordinate Variables
- standard_name: time
- var_id: time
- long_name: Midpoint time of acquisitons used
- names: time, Midpoint time of acquisitons used
Temporal Range
1992-01-02T00:00:00
2010-08-22T22:59:59
Geographic Extent
90.0000° |
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-80.0000° |
-10.0000° |
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60.0000° |