Spatiotemporal mass balance trends for the Antarctic Ice Sheet, 2003-2013
The Antarctic mass trends have been collated from a combination of different remote sensing datasets. These are trends of yearly elevation changes over Antarctica for the period 2003-2013 due to the different geophysical processes driving changes in Antarctica: ice dynamics, surface mass balance and glacio-isostatic adjustment (GIA). Net trends can be easily calculated by adding together surface and ice dynamics trends.
20 km gridded datasets have been produced for each process, per year (except the GIA solution which is time-invariant).
To convert elevation to mass trends, we also provide the density fields for surface (SMB) and GIA processes used in Martin-Espanol et al (2016). These can be directly multiplied by the dh/dt. To convert dh/dt from ice dynamics, simply multiply by the density of ice.
Mass smb = dh/dt smb * d surf
Mass ice = dh/dt ice * d ice (not provided)
Mass gia = dh/dt gia * d rock
NERC grant: NE/I027401/1
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/00916
- Date (Publication)
- 2020-01-29
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/00916
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance
- EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
- EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance
- BAS Free-text keywords
-
- Antarctic Ice Sheet
- Elevation
- Mass balance
- Remote sensing
- Use limitation
- This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Metadata language
- EnglishEnglish
- Topic category
-
- Climatology, meteorology, atmosphere
- Geoscientific information
))
- Begin date
- 2003-01-01
- End date
- 2013-12-31
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
- Uncertainty maps are provided for each of the variables, which are estimated within the Bayesian inversion method taking into account the full error covariance matrices for each data set. Further details are described in the publications related to the project (see references).
- File identifier
- GB_NERC_BAS_PDC_00916 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2020-01-29
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
Spatial extent
))
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