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Dataset

 

ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Gravimetric Mass Balance from GRACE data, derived by DTU-Space, v1.0

Status: Superseded
Online Status: ONLINE
Publication State: Published
Publication Date: 2016-11-30
Download Stats: last 12 months

This dataset has been superseded. See Latest Version here
Abstract

This dataset provides the Gravitational Mass Balance (GMB) product derived from the GRACE satellite instrument, by DTU-Space. The data consists of two products, a mass change time series for the Greenland Ice Sheet and individual basins, and mass trend grids for 5-year periods.

The mass change time series contains the mass change (with respect to a chosen reference month) for all of the Greenland Ice Sheet and each individual drainage basin. For each month (defined by a decimal year) a mass change in Gt and its associated error (also in Gt) is provided. The mass trend grid product is given in units of mm water equivalent per year.

Mass balance is an important variable to understand glacial thinning and ablation rates to enable mapping glacier area change. The time series allows the longer term comparison of trends whereas the mass trend grids provide a yearly snapshot which can be further analysed and compared across the data set.

Citable as:  ESA Greenland Ice Sheet CCI project team (2016): ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Greenland Gravimetric Mass Balance from GRACE data, derived by DTU-Space, v1.0. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/2587d4a63a1f4928880008d7d7770552
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.

File Format:
Time series data are provided in ASCII and png format Mass trend data are provided in NetCDF format

Process overview

  • long_name: Average time for time slice
  • var_id: t
  • names: Time, Average time for time slice
  • long_name: End of time span
  • var_id: end_time
  • names: Time, End of time span
  • long_name: Mass trend for time span
  • var_id: GMB_trend
  • names: Mass trend for time span
  • long_name: Mean of time span
  • var_id: start_time
  • names: Time, Mean of time span

Co-ordinate Variables

  • standard_name: latitude
  • var_id: latitude
  • long_name: latitude
  • units: degrees_north
  • names: latitude
  • units: degrees_east
  • standard_name: longitude
  • long_name: longitude
  • var_id: longitude
  • names: longitude
Coverage
Temporal Range
Start time:
2002-03-31T23:00:00
End time:
2015-12-31T23:59:59
Geographic Extent

 
90.0000°
 
-80.0000°
 
-10.0000°
 
60.0000°