Abstract:
This dataset includes post-processed model output from an Amundsen Sea regional configuration of MITgcm. The model use ocean, sea ice and ice shelf components. The model is forced by ERA5 from the years 1979-2021, with the exception of 1996 for which ERA Interim is used. The data is used for figures in the research paper "Wind-driven coastal polynya variability drives decadal ice-shelf melt variability in the Amundsen Sea" by Michael Haigh, Paul Holland and Thomas Caton Harrison.
Creation of the dataset was funded by the NERC project "Drivers of Oceanic Change in the Amundsen Sea", NE/T012803/1.
Keywords:
Haigh, M. (2025). Processed model output from an Amundsen Sea MITgcm configuration forced by ERA5 1979-2021 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/4b2dee26-0c3a-42d1-8b1f-6797945f1526
| Access Constraints: | None. |
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| Use Constraints: | Data are supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2025-10-22 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | PDC BAS |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Michael Haigh |
| Role(s) | Investigator, Technical Contact |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Michael Haigh, Paul R. Holland, Thomas Caton Harrison and Pierre Dutrieux (2026). Wind-Driven Coastal Polynya Variability Drives Decadal Ice-Shelf Melt Variability in the Amundsen Sea. Geophysical Research Letters. https://doi.org/10.1029/2025GL118546. | |
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| Lineage/Methodology: | The data was produced using checkpoint 67s of MITgcm in an Amundsen Sea configuration. The data is post-processed model output and is presented in figures in the associated research paper. The model utilises a grid with 0.1° longitudinal grid spacing. The vertical direction is discretised into 50 levels, with thinnest levels (10 m) near the ocean surface and thickest levels (200 m) near the ocean floor. |
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| Temporal Coverage: | |
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| Start Date | 1979-01-01 |
| End Date | 2021-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -80 |
| Northernmost | -62 |
| Longitude | |
| Westernmost | -140 |
| Easternmost | -80 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Amundsen Sea |
| Data Storage: | Data are in netCDF format, separated into four directories (one per figure in research paper). There are 47 files with the total volume 71 MB. |
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