Simulated changes in East Antarctic mass balance and grounded area in response to a shift to circumpolar deep water forced melting from the present-day oceanic regime

The dataset contains processed model output of future simulations of the East Antarctic Ice Sheet using the Ua ice dynamics model ( https://github.com/GHilmarG/UaSource). Simulations were run for 200 years comparing the impact of both an intermediate (RCP4.5 emissions scenario) and extreme (RCP8.5 emissions scenario) as well as maintaining the current oceanic regime or switching to one dominated by circumpolar deep water intrusions. A reference run with constant present-day forcing is also included to assess the relative impacts of the various forcing scenarios.





This work was primarily funded by the Natural Environment Research Council, grant number NE/R000719/1. James Jordan, Hilmar Gudmundsson and Adrian Jenkins received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 869304, PROTECT. Bertie Miles was also supported by a Leverhulme Early Career Fellowship (ECF-2021-484).

Simple

Date (Creation)
2023-02-20
Date (Revision)
2023-02-20
Date (Publication)
2023-02-20
Date (released)
2023-02-20
Edition

1.0
Unique resource identifier
https://doi.org/10.5285/beda45d1-dd33-4666-8861-b4b91af0180f
Codespace

doi
Unique resource identifier
GB/NERC/BAS/PDC/01712
Codespace

https://data.bas.ac.uk/

Unique resource identifier
NE/R000719/1
Codespace

award
Other citation details

Please cite this item as: Jordan, J., Stokes, C., Miles, B., Jamieson, S., Gudmundsson, G., & Jenkins, A. (2023). Simulated changes in East Antarctic mass balance and grounded area in response to a shift to circumpolar deep water forced melting from the present-day oceanic regime (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/beda45d1-dd33-4666-8861-b4b91af0180f

Credit

No credit.
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role
Northumbria University Jordan, James Author
Durham University Stokes, Chris Author
Durham University Miles, Bertie Author
Durham University Jamieson, Stewart Author
Northumbria University Gudmundsson, G. Hilmar Author
Northumbria University Jenkins, Adrian Author
NERC EDS UK Polar Data Centre

PDCServiceDesk@bas.ac.uk

Point of contact
Maintenance and update frequency
As needed
Maintenance note
Completed
Global Change Master Directory (GCMD) Science Keywords
Theme

  • East Antarctica

  • circumpolar deep water

  • ice sheet

  • mass balance

  • numerical simulations
Place

  • East Antarctica Antarctica

GEMET - INSPIRE themes, version 1.0
Access constraints
Other restrictions
Other constraints
no limitations to public access
Access constraints
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Other constraints
no limitations
Use constraints
License
Other constraints
Open Government Licence v3.0
Use constraints
Other restrictions
Other constraints

Data supplied under Open Government Licence v3.0
Use constraints
Other restrictions
Other constraints

No restrictions apply.
Unique resource identifier
url
Codespace

url
Association Type
Cross reference
Unique resource identifier
url
Codespace

url
Association Type
Larger work citation
Unique resource identifier
url
Codespace

url
Association Type
Larger work citation
Unique resource identifier
doi
Codespace

doi
Association Type
Cross reference
Unique resource identifier
doi
Codespace

doi
Association Type
Cross reference
Unique resource identifier
doi
Codespace

doi
Association Type
Cross reference
Unique resource identifier
doi
Codespace

doi
Association Type
Cross reference
Unique resource identifier
url
Codespace

url
Association Type
Cross reference
Unique resource identifier
doi
Codespace

doi
Association Type
dependency
Unique resource identifier
url
Codespace

url
Association Type
dependency
Spatial representation type
Text, table
Language
English
Character set
UTF8
Topic category
  • Geoscientific information
  • Oceans
N
S
E
W
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Begin date
2020-01-01
End date
2220-01-01
Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
Date (Publication)
2008-11-12
Cited responsible party
Organisation name Individual name Electronic mail address Role

European Petroleum Survey Group

EPSGadministrator@iogp.org

Publisher
Unique resource identifier
urn:ogc:def:crs:EPSG::3031
Version

6.18.3

Distributor

Distributor contact
Organisation name Individual name Electronic mail address Role
NERC EDS UK Polar Data Centre

PDCServiceDesk@bas.ac.uk

Distributor
Distributor format
Name Version
application/x-hdf
application/netcdf
Units of distribution

bytes
Transfer size
892416
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=beda45d1-dd33-4666-8861-b4b91af0180f

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Units of distribution

bytes
Transfer size
892416
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=beda45d1-dd33-4666-8861-b4b91af0180f

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Hierarchy level
Dataset
Statement

Methodology:

Data was obtained from numerical simulations using the Ua ice dynamics model ( https://github.com/GHilmarG/UaSource, version Ua2019b). Bedrock bathymetry and initial ice thickness was provided by the BedMachine dataset (Morlighem et al 2020), Ice shelf melt rates were determined by using a modified version of the PICO (Potsdam Ice-shelf Cavity mOdel (Reese et al., 2018). Precipitation was determined by scaling the RACMO v 2.3 (Regional Antarctic Climate Model) dataset (Van Wessem et al., 2014). Results provided are time series of total ice volume, ice volume above floatation and grounded ice area for the entire model domain as well as drainage basins corresponding to the IMBIE 2016 definition of East Antarctica (Zwally2012).

Data collection:

Simulations were performed using the Ua ice dynamics model ( https://github.com/GHilmarG/UaSource, version Ua2019b). Post processing of data was performed using MATLAB version R2021a.

Data quality:

To account for model bias a baseline run with constant forcing was performed. To account for errors in the ocean and atmospheric forcing applied two further runs were performed for each emission scenario, a "positive bias" mass balance (high precipitation, low ocean melting) and "negative bias" mass balance (low precipitation, high ocean melting) to capture the envelope of expected results.

Metadata

File identifier
beda45d1-dd33-4666-8861-b4b91af0180f XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

dataset
Date stamp
2023-02-20
Metadata standard name

ISO 19115 Geographic Information - Metadata
Metadata standard version

ISO 19115:2003(E)
Metadata author
Organisation name Individual name Electronic mail address Role
NERC EDS UK Polar Data Centre

polardatacentre@bas.ac.uk

Point of contact
 
 

Overviews

Spatial extent

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Keywords

East Antarctica circumpolar deep water ice sheet mass balance numerical simulations
GEMET - INSPIRE themes, version 1.0

Elevation Oceanographic geographical features
Global Change Master Directory (GCMD) Science Keywords

EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Ice Sheets EARTH SCIENCE > Oceans > Ocean Circulation > Water Masses EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature


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