Dataset
ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Zachariae and 79Fjord area from ERS-1, ERS-2 and Envisat data for 1991-2011, v1.1
Abstract
This dataset contains a time series of ice velocities for the Zachariae and 79Fjord area in Greenland derived from intensity-tracking of ERS-1, ERS-2 and Envisat data acquired between 01/08/1991 and 07/02/2011. It provides components of the ice velocity and the magnitude of the velocity and has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.
The data are provided on a polar stereographic grid (EPSG3413: Latitude of true scale 70N, Reference Longitude 45E) with 500m grid spacing. The image pairs have a repeat cycle between 1 and 35 days. The horizontal velocity is provided in true meters per day, towards EASTING(x) and NORTHING(y) direction of the grid, and the vertical displacement (z), derived from a digital elevation model, is also provided.
The product was generated by GEUS (Geological Survey of Denmark and Greenland).
Details
| Previous Info: |
No news update for this record
|
|---|---|
| Previously used record identifiers: |
No related previous identifiers.
|
| 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 produced by GEUS (Geological Survey of Denmark and Greenland) as part of the ESA CCI Greenland Ice Sheet project and were supplied to CEDA in the context of the ESA CCI Open Data Portal Project. |
| Data Quality: |
As provided by the CCI Greenland Ice Sheets team
|
| File Format: |
Data is provided as a single NetCDF file.
|
Process overview
Instrument/Platform pairings
Mobile platform operations
| Mobile Platform Operation 1 | Mobile Platform Operation for: Envisat |
| Mobile Platform Operation 2 | Mobile Platform Operation for: European Remote Sensing satellite 2 (ERS-2) |
| Mobile Platform Operation 3 | Mobile Platform Operation for: ERS-1 |
Computation Element: 1
| Title | Ice velocity time series derived from intensity tracking of ERS-1, ERS-2 and ENVISAT data for the Greenland Ice Sheet CCI project. |
| Abstract | Ice Velocity time series have been derived from intensity-tracking of ERS-1, ERS-2 and Envisat data for the ESA Climate Change Initiative (CCI) Greenland Ice Sheet project. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- var_id: crs
- units: m/day
- var_id: land_ice_surface_east_velocity
- units: m/day
- var_id: land_ice_surface_north_velocity
- var_id: time_bnds
- units: m
- standard_name: height
- var_id: alt
- long_name: vertical distance above the surface
- names: height, vertical distance above the surface
- 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
1991-07-31T23:00:00
2011-02-07T23:59:59
Geographic Extent
90.0000° |
||
-80.0000° |
-10.0000° |
|
60.0000° |