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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
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  Polar Data Centre; British Antarctic Survey, NERC - Martin-Espanol, Alba ; Bamber, Jonathan
High Cross, Madingley , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
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
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Begin date
2003-01-01
End date
2013-12-31
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
Distributor
  Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
OnLine resource
https://ramadda.data.bas.ac.uk/repository/entry/show/?entryid=f657816c-dc0c-41ca-945d-a08620494d5b
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
Point of contact
  British Antarctic Survey
+44 (0)1223 221400
Dataset URI
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/00916
 
 

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