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Dataset

 

ESA Antarctic Ice Sheet Climate Change Initiative (Antarctic_Ice_Sheet_cci): Gravimetric Mass Balance Gridded product, v1.1

Update Frequency: Not Planned
Status: Superseded
Online Status: ONLINE
Publication State: Published
Publication Date: 2016-11-24
Download Stats: last 12 months

This dataset has been superseded. See Latest Version here
Abstract

This dataset provides gridded Gravimetric Mass Balance data for the Antarctic Ice Sheet. It has been produced in the framework of the Antarctic Ice Sheets Climate Change Initiative (CCI) project, under the lead of TU Dresden.

The ice sheet mass balance, i.e. the change in ice mass over time, is determined using the US-German satellite gravimetry mission GRACE (Gravity Recovery and Climate Experiment). The Antarctic Ice Sheet CCI GMB products are based on the monthly GRACE solutions ITSG-Grace2016 by Technische Universität Graz, and comprises a time series of mass change grids covering the entire ice sheet (GMB Gridded product), along side mass change time series for different drainage basins (GMB Basin Product).

The dataset described here covers version 1.1 of the Gridded product. Time series of gridded mass changes are provided in a polar-stereographic projection (EPSG:3031) with a grid resolution of 50 km x 50 km. The gridded changes are given in millimetre of equivalent water height (mm w.eq., or kg/m2).

If publishing results based on this dataset, please cite the following: Groh, A., & Horwath, M. (2016). The method of tailored sensitivity kernels for GRACE mass change estimates. Geophysical Research Abstracts, 18, EGU2016-12065

Interactive data visualisation is available at: https://data1.geo.tu-dresden.de/ais_gmb/

Citable as:  Horwath, M.; Groh, A. (2016): ESA Antarctic Ice Sheet Climate Change Initiative (Antarctic_Ice_Sheet_cci): Gravimetric Mass Balance Gridded product, v1.1. Technische Universität Dresden, Institut für Planetare Geodäsie, date of citation. https://catalogue.ceda.ac.uk/uuid/2d0422ea3c4047d5829d5fbdabe0c156
Abbreviation: Not defined
Keywords: Antarctic, 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_antarctic_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 TU Dresden in the context of the ESA CCI Antarctic Ice Sheet project team and are archived on https://data1.geo.tu-dresden.de/ais_gmb/. They have been supplied to CEDA in the context of the ESA CCI Open Data Portal Project.

File Format:
Data are provided in netCDF, Ascii and GeoTiff formats

Process overview

  • units: kg/m^2
  • long_name: change in ice mass
  • standard_name: change_in_land_ice_amount
  • var_id: dm
  • names: change in ice mass, change_in_land_ice_amount
  • var_id: crs
  • units: year
  • long_name: decimal year
  • var_id: time_dec
  • names: decimal year
  • standard_name: cell_area
  • var_id: area
  • units: m^2
  • long_name: grid cell area on the ellipsoid
  • names: cell_area, grid cell area on the ellipsoid
  • units: degrees_north
  • long_name: latitude
  • var_id: lat
  • names: latitude
  • units: degrees_east
  • long_name: longitude
  • var_id: lon
  • names: longitude
  • units: m
  • var_id: x
  • standard_name: projection_x_coordinate
  • long_name: x-coordinate
  • names: projection_x_coordinate, x-coordinate
  • units: m
  • var_id: y
  • standard_name: projection_y_coordinate
  • long_name: y-coordinate
  • names: projection_y_coordinate, y-coordinate

Co-ordinate Variables

  • standard_name: time
  • var_id: time
  • long_name: modified julian date
  • names: time, modified julian date
Coverage
Temporal Range
Start time:
2002-07-31T23:00:00
End time:
2016-07-31T22:59:59
Geographic Extent

 
-62.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°