Dataset
ESA Antarctic Ice Sheet Climate Change Initiative (Antarctic_Ice_Sheet_cci): Antarctic Ice Sheet monthly Gravimetric Mass Balance basin product, v3.0, 2002-2020
Abstract
This dataset contains the Gravimetric Mass Balance (GMB) basin product for the Antarctic Ice Sheet (AIS), generated by TU Dresden as part of the ESA Antarctic Ice Sheet Climate Change Initiatve (Antarctic_Ice_Sheet_cci).
The Gravimetric Mass Balance (GMB) product for the Antarctic Ice Sheet (AIS) is based on monthly snapshots of the Earth’s gravity field provided by the Gravity Recovery and Climate Experiment (GRACE) and its follow-on satellite mission (GRACE-FO). The product relies on monthly gravity field solutions (L2) of release 06 generated at the Center for Space Research (University of Texas at Austin) and spans the period from April 2002 through July 2020. The GMB product covers the full GRACE mission period (April 2002 - June 2017) and is extended by means of GRACE-FO data starting from June 2018, thus including 187 monthly solutions. The mass change estimation is based on the tailored sensitivity kernel approach developed at TU Dresden. (Groh & Horwath, 2021)
The GMB basin product provides time series of integrated mass changes for 26 drainage basins and the aggregations of the Antarctic Peninsula, East Antarctica, West Antarctica and the entire AIS. Based on the GMB basin product, ice mass balance estimates, i.e. linear trend in the change in ice mass, were derived for all drainage basins and aggregations. A gridded GMB product is also available as a separate dataset.
Groh, A. & Horwath, M. (2021). Antarctic Ice Mass Change Products from GRACE/GRACE-FO Using Tailored Sensitivity Kernels. Remote Sens., 13(9), 1736. doi:10.3390/rs13091736
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_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: |
The data were generated by TU Dresden within the ESA Antarctic Ice Sheet CCI project and deposited at the Centre for Environmental Data Analysis (CEDA) for archiving and distribution via the CCI Open Data Portal. |
| Data Quality: |
see the Antarctic Ice Sheet CCI project webpage
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| File Format: |
Data are in NetCDF format
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Related Documents
Process overview
Instrument/Platform pairings
| GRACE instrument | Deployed on: GRACE |
| GRACE instrument | Deployed on: GRACE-FO |
Computation Element: 1
| Title | Derivation of Gravimetric Mass Balance products from the Antarctic Ice Sheet CCI (v3.0) |
| Abstract | TU Dresden has generated a Gravimetric Mass Balance (GMB) product for the Antarctic Ice Sheet (AIS) based on monthly snapshots of the Earth’s gravity field provided by the Gravity Recovery and Climate Experiment (GRACE) and its follow-on satellite mission (GRACE-FO). The product relies on monthly gravity field solutions (L2) of release 06 generated at the Center for Space Research (University of Texas at Austin) and spans the period from April 2002 through July 2020. The GMB product covers the full GRACE mission period (April 2002 - June 2017) and is extended by means of GRACE-FO data starting from June 2018, thus including 187 monthly solutions. The mass change estimation is based on the tailored sensitivity kernel approach developed at TU Dresden. The methodology is described in: Groh, A. & Horwath, M. (2021). Antarctic Ice Mass Change Products from GRACE/GRACE-FO Using Tailored Sensitivity Kernels. Remote Sens., 13(9), 1736. doi:10.3390/rs13091736 |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- var_id: area
- units: m^2
- standard_name: grounded_ice_sheet_area
- long_name: area of the ice sheet regions
- units: kg
- long_name: change in ice mass
- var_id: dm
- units: year
- long_name: decimal year
- var_id: time_dec
- var_id: regions
- long_name: regions of the Antarctic Ice Sheet
- var_id: gia
- long_name: trend in GIA applied as correction
- units: kg/yr
- standard_name: tendency_of_global_average_sea_level_change
- units: m/yr
- var_id: dsldt
- long_name: trend in global average sea level change
- units: kg/yr
- var_id: dmdt
- long_name: trend in ice mass change
- units: kg
- var_id: sigma_dm
- long_name: uncertainty of the change in ice mass
- units: m/yr
- var_id: sigma_dsldt
- standard_name: tendency_of_global_average_sea_level_change standard_error
- long_name: uncertainty of the trend in global average sea level change
- units: kg/yr
- var_id: sigma_dmdt
- long_name: uncertainty of the trend in ice mass change
Co-ordinate Variables
- standard_name: time
- var_id: time
- units: days
- long_name: modified julian date
Temporal Range
2002-04-18T00:00:00
2020-07-16T23:59:59
Geographic Extent
-60.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |