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Dataset

 

ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity data for the Greenland Margin from the PALSAR instrument for winters 2006-2011 (April 2016 release)

Status: Superseded
Online Status: ONLINE
Publication State: Published
Publication Date: 2016-04-11
Download Stats: last 12 months

This dataset has been superseded. See Latest Version here
Abstract

This dataset contains ice velocities for the Greenland margin for winter 1995-1996. This dataset has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.

This dataset consists of ice velocity maps which have been generated from PALSAR data on the ALOS satellite for the winters between 2006-2011. The data is 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).

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 Margin from the PALSAR instrument for winters 2006-2011 (April 2016 release). Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/8650e1ec31144253a31e948c53fa2cca
Abbreviation: Not defined
Keywords: Greenland Ice Sheet, ESA, CCI

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… 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 The later product was released on the Greenland Ice Sheets download page in June 2016, but the earlier superceded product remained available through the CCI Open Data Portal and the CEDA archive until 29th November 2016.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

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 NetCDF-4 formatted

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
  • long_name: vertical distance above the surface
  • var_id: alt
  • standard_name: height
  • names: height, vertical distance above the surface
  • 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:
2006-12-20T00:00:00
End time:
2011-03-17T00:00:00
Geographic Extent

 
90.0000°
 
-80.0000°
 
-10.0000°
 
60.0000°