Abstract:
This is the output from high-resolution model simulations of ocean conditions and melting beneath the floating part of Thwaites Glacier. The model is designed to study how these conditions change as the geometry of Thwaites Glacier evolved from 2011-2022. There is one simulation using the geometry from each year during this period, derived from satellite observations. The simulations are repeated for different ocean model forcing conditions, as described in the associated paper.
PH was supported by the NERC/NSF Thwaites-MELT project (NE/S006656/1). ITGC contribution number 099.
*******PLEASE BE ADVISED TO USE VERSION 2.0 DATA*******
(Version 1 had the seabed bathymetry and ice shelf topography files incorrectly oriented.)
Keywords:
Amundsen Sea, Ocean modelling, Ocean/ice interactions, Thwaites Glacier, West Antarctic Ice Sheet
Holland, P.R., Bevan, S.L., & Luckman, A.J. (2023). Output from model simulations of the ocean beneath Thwaites Glacier, VERSION 2 [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/473eb97c-63a8-4002-8b72-e7f07b2ab228
| Access Constraints: | None. |
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| Use Constraints: | Data released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2023-09-29 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Paul R Holland |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Suzanne L Bevan |
| Role(s) | Investigator |
| Organisation | Swansea University |
| Name | Prof Adrian J Luckman |
| Role(s) | Investigator |
| Organisation | Swansea University |
| Parent Dataset: | N/A |
| Reference: | Holland, P.R., Bevan S.L., and Luckman A.J., 2023. Strong ocean melting feedback during the recent retreat of Thwaites Glacier. Geophysical Research Letters (revisions submitted). |
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| Lineage: | This is output from the MITgcm ocean model, code checkpoint c68i. The simulations were run on the ARCHER2 supercomputing cluster. The output consists of ocean model fields (temperature, salinity, currents) and ice shelf melt rates. The model setup is on Zenodo (https://doi.org/10.5281/zenodo.8316169). | |
| Temporal Coverage: | |
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| Start Date | 2011-01-01 |
| End Date | 2022-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -75.58 |
| Northernmost | -74.2 |
| Longitude | |
| Westernmost | -108.76 |
| Easternmost | -103.49 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Data Resolution: | |
| Latitude Resolution | 200m |
| Longitude Resolution | 200m |
| Horizontal Resolution Range | 100 meters - < 250 meters |
| Vertical Resolution | 10m |
| Vertical Resolution Range | N/A |
| Temporal Resolution | N/A |
| Temporal Resolution Range | N/A |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | Amundsen Sea, Thwaites Glacier |
| Data Collection: | This is output from the MITgcm ocean model, code checkpoint c68i. The model setup is on Zenodo (https://doi.org/10.5281/zenodo.8316169). |
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| Distribution: | |
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| Distribution Media | N/A |
| Distribution Size | 60 GB |
| Distribution Format | N/A |
| Fees | N/A |
| Data Storage: | There are 60 experiments in total. 101-112: WARM experiment 121-132: COOL experiment 141-152: NOSG experiment 161-172: FIXGL experiment 181-192: FIXWC experiment In each case, the 12 different runs correspond to the 12 yearly ice geometries, 2011-2022. |