NERC Data Catalogue Service
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 Completed
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Maintenance and update frequency
- asNeeded As needed
- Maintenance note
- completed Completed
- Theme
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- East Antarctica
- circumpolar deep water
- ice sheet
- mass balance
- numerical simulations
- Place
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- East Antarctica Antarctica
- GEMET - INSPIRE themes, version 1.0
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations
- Use constraints
- license License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- Data supplied under Open Government Licence v3.0
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- No restrictions apply.
- Unique resource identifier
- url
- Codespace
- url
- Association Type
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- Codespace
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- Association Type
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- Codespace
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- dependency dependency
- Unique resource identifier
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- Codespace
- url
- Association Type
- dependency dependency
- Spatial representation type
- textTable Text, table
- Metadata language
- engEnglish
- Character set
- utf8 UTF8
- Topic category
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- Geoscientific information
- Oceans
))
- 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.
Distributor
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Name
- application/x-hdf
- Name
- application/netcdf
- Units of distribution
- bytes
- Transfer size
- 892416
- OnLine resource
-
Get Data
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Download data
- Units of distribution
- bytes
- Transfer size
- 892416
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Hierarchy level
- dataset 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.
- File identifier
- beda45d1-dd33-4666-8861-b4b91af0180f XML
- Metadata language
- engEnglish
- Character set
- utf8 UTF8
- Hierarchy level
- dataset 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)
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
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