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Dataset

 

ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Optical ice velocity of the Jakobshavn Glacier between 2017-06-03 and 2017-09-08, generated using Sentinel-2 data, v1.1

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2018-11-29
Download Stats: last 12 months

Abstract

This dataset contains optical ice velocity time series and seasonal product of the Jakobshavn Glacier in Greenland, derived from intensity-tracking of Sentinel-2 data acquired between 2017-06-03 and 2017-09-08. It has been produced as part of the ESA Greenland Ice sheet CCI project.

The data are provided on a polar stereographic grid (EPSG 3413:Latitude of true scale 70N, Reference Longitude 45E) with 50m grid spacing. The horizontal velocity is provided in true meters per day, towards EASTING (x) and NORTHING (y) direction of the grid.

The data have been produced by S[&]T Norway.

Citable as:  ESA Greenland Ice Sheet CCI project team (2018): ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Optical ice velocity of the Jakobshavn Glacier between 2017-06-03 and 2017-09-08, generated using Sentinel-2 data, v1.1. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/cfe3102659f34d33b123b2a0043e4068
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 produced by S[&]T Norway as part of the ESA CCI Greenland Ice Sheet project and 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 are in NetCDF format. The file provides components of the ice velocity and includes all measurements and annotations.

Process overview

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

Instrument/Platform pairings

Sentinel 2 Multispectral Instrument (MSI) Deployed on: Sentinel 2A

Instrument/Platform pairings

Sentinel 2 Multispectral Instrument (MSI) Deployed on: Sentinel 2B

Computation Element: 1

Title Optical Ice velocity derived from intensity tracking of Sentinel 2 data
Abstract Optical Ice Velocity time series and seasonality products have been derived from intensity-tracking of Sentinel 2 data as part of the ESA Climate Change Initiative (CCI) Greenland Ice Sheet project.
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:
2017-06-02T23:00:00
End time:
2017-09-08T22:59:59
Geographic Extent

 
90.0000°
 
-80.0000°
 
-10.0000°
 
60.0000°