Dataset
ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Ice Velocity time series for the Helheim Glacier for 2015-2017 from Sentinel-1 data, v1.1
Update Frequency: Not Planned
Latest Data Update: 2018-11-29
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2019-02-04
Download Stats: last 12 months
Dataset Size: 5 Files | 52MB
Abstract
This dataset contains a time series of ice velocities for the Helheim Glacier in Greenland derived from Sentinel-1 SAR (Synthetic Aperture Radar) data acquired between between June 2015 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 Helheim Glacier for 2015-2017 from Sentinel-1 data, v1.1. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/0e289294f2c141bca545cd9d7fcb62d0/
Abbreviation: Not defined
Keywords: Greenland, Ice sheet, CCI, ESA
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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 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)
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| 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.
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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
- 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
Coverage
Temporal Range
Start time:
2015-06-09T23:00:00
End time:
2017-03-21T23:59:59
Geographic Extent
90.0000° |
||
-80.0000° |
-10.0000° |
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60.0000° |
Related parties