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Dataset

 

ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity data for the Greenland Northern Drainage basin from ERS-1 for winter 1991-1992, v1.1 (June 2016 release)

Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2016-11-29
Download Stats: last 12 months

Abstract

This dataset contains ice velocities for the Greenland Northern Drainage Basin for winter 1991-1992, which have been produced as part of the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project. The data has been derived from intensity-tracking of ERS-1 Ice phase (3 days repeat) data aquired between 29th December 1991 and 22nd March 1992.

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 EASTING(x) and NORTHING(y) direction of the grid, and the vertical displacement (z), derived from a digital elevation
model, is also provided. (Please note that in earlier versions of this product the horizontal velocities were provided 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 DTU Space - Microwaves and Remote Sensing.

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.

Citable as:  ESA Greenland Ice Sheet CCI project team (2016): ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity data for the Greenland Northern Drainage basin from ERS-1 for winter 1991-1992, v1.1 (June 2016 release). Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/e4f39152bc50466f8887bd2a343cac93
Abbreviation: Not defined
Keywords: Greenland, Ice sheet, CCI, ESA

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

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: 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 in NetCDF and GeoTiff format

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
  • standard_name: projection_x_coordinate
  • long_name: x coordinate of projection
  • var_id: x
  • names: projection_x_coordinate, x coordinate of projection
  • units: m
  • long_name: y coordinate of projection
  • standard_name: projection_y_coordinate
  • var_id: y
  • names: projection_y_coordinate, y coordinate of projection

Co-ordinate Variables

  • long_name: Midpoint time of acquisitons used
  • standard_name: time
  • var_id: time
  • names: time, Midpoint time of acquisitons used
Coverage
Temporal Range
Start time:
1991-12-29T00:00:00
End time:
1992-03-22T23:59:59
Geographic Extent

 
90.0000°
 
-80.0000°
 
-10.0000°
 
60.0000°