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Dataset

 

ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Jakobshavn Glacier for 2014-2017 from Sentinel-1 data, v1.1

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2019-02-04
Download Stats: last 12 months

Abstract

This dataset contains a time series of ice velocities for the Jakobshavn glacier in Greenland, generated from Sentinel-1 SAR (Synthetic Aperture Radar) data acquired from October 2014 and March 2017. It has been produced by the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.

Data files are delivered in NetCDF format at 250m grid spacing in North Polar Stereographic projection (EPSG: 3413). The horizontal velocity components are provided in true meters per day, towards the EASTING(x) and NORTHING(y) directions of the grid.

Citable as:  ESA Greenland Ice Sheet CCI project team (2019): ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Jakobshavn Glacier for 2014-2017 from Sentinel-1 data, v1.1. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/e1c0c34e0cc942898b3626efd1dcc095
Abbreviation: Not defined
Keywords: Greenland, Ice sheet, CCI, ESA

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: 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.

Data Quality:
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
File Format:
Data files are delivered in NetCDF format at 250m grid spacing in North Polar Stereographic projection (EPSG: 3413). The horizontal velocity components are provided in true meters per day, towards EASTING(x) and NORTHING(y) direction of the grid.

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Instrument/Platform pairings

Sentinel 1 Synthetic Aperture Radar (SAR) Deployed on: Sentinel 1A

Instrument/Platform pairings

Sentinel 1 Synthetic Aperture Radar (SAR) Deployed on: Sentinel 1B

Computation Element: 1

Title Ice Velocity derived by the ESA Greenland Ice Sheets Climate Change Initiative project.
Abstract Ice velocities for the Greenland Ice Sheet have been derived by the ESA CCI Greenland Ice Sheet project. Further details are available from http://esa-icesheets-greenland-cci.org/
Input Description None
Output Description None
Software Reference None
Output Description 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
  • 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:
2014-10-10T23:00:00
End time:
2017-03-17T23:59:59
Geographic Extent

 
90.0000°
 
-80.0000°
 
-10.0000°
 
60.0000°