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High-resolution (4-km) circum-Antarctic ocean-ice shelf model: Whole Antarctica Ocean Model (WAOM4)

The Whole-Antarctic Ocean Model (WAOM) is based on the Regional Ocean Modelling System (ROMS) with thermodynamic ice shelf interactions following Galton-Fenzi et al. (2012)¹. WAOM simulations of the present-day (year 2007) were used to investigate the physical drivers of Antarctic ice shelf basal melting via an ocean heat budget in a longitudinal framework. Ice shelves buttress the Antarctic Ice Sheet and therefore are critical in the dynamics of ice sheet instability and its contribution to sea level rise. New insights into the seasonal melting mechanisms and its importance at circum-Antarctic scale were investigated in Dias et al (2025)².


1) Galton-Fenzi B, Hunter JR, Coleman R, Marsland SJ, & Warner RC. (2012) Modeling the basal melting and marine ice accretion of the Amery Ice Shelf, Journal of Geophysical Research: Oceans, 117 (C9). https://doi.org/10.1029/2012JC008214


2) Boeira Dias F, England MH, Morrison AK, & Galton-Fenzi B. (2025).: On the seasonal variability of ocean heat transport and ice shelf melt around Antarctica, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-3905

Simple

Identification info

Date (Publication)
2025-09-26T00:00:00

Resource provider

Institute for Marine and Antarctic Studies
Private Bag 129
Hobart
Tasmania
7001
Australia

Principal investigator

University of New South Wales, Sydney - Boeira Dias, Fabio
ROR ID >

ORCID >

Collaborator

University of New South Wales, Sydney - England, Matthew
ROR ID >

ORCID >

Collaborator

Australian National University - Morrison, Adele
ROR ID >

ORCID >

Collaborator

Australian Antarctic Division - Galton-Fenzi, Benjamin
ROR ID >

ORCID ID >

Credit
This research was supported by the Australian Research Council Special Research Initiative, Australian Centre for Excellence in Antarctic Science (ACEAS) (Project Number SR200100008).
Status
Completed

Point of contact

University of New South Wales, Sydney - Boeira Dias, Fabio
New South Wales
Australia
ROR ID >

ORCID >

Topic category
  • Oceans

Extent

N
S
E
W


Temporal extent

Time period
2022-12-12 2025-09-22

Vertical element

Minimum value
0
Maximum value
5000
Identifier
EPSG::5715
Name
MSL depth
Maintenance and update frequency
Not planned
  • Southern Ocean dynamics
  • ocean circulation
  • ocean heat transport
  • ice shelf basal melting
  • ocean-ice shelf interactions
Global Change Master Directory Earth Science Keywords, Version 8.5
  • SEA SURFACE TEMPERATURE INDICES
  • SALINITY
  • SURFACE SALINITY
  • POTENTIAL TEMPERATURE
  • OCEAN CURRENTS
  • ICE GROWTH/MELT
AODN Discovery Parameter Vocabulary
  • Ocean heat content
  • Practical salinity of the water body
  • Current direction in the water body
AODN Geographic Extents Vocabulary
  • Continents | Continents | Antarctica
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
  • Physical Oceanography

Resource constraints

Linkage
https://licensebuttons.net/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License
Alternate title
CC-BY
Edition
4.0


>

Website
https://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
Cite data as: Boeira Dias F, England M, Morrison A, & Galton-Fenzi BK. (2025). High-resolution (4-km) circum-Antarctic ocean-ice shelf model: Whole Antarctica Ocean Model (WAOM4) [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/waom4-2025a
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement

Identifier

Code
Ocean heat content
Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UPAA
Name
Degrees Celsius

Identifier

Code
Practical salinity of the water body
Identifier
http://vocab.aodn.org.au/def/unitsofmeasure/entity/481
Name
Practical Salinity Unit

Identifier

Code
Current direction in the water body
Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UVAA
Name
Metres per second

Distribution Information

Distribution format
  • NetCDF

OnLine resource
DATA ACCESS - view all available files for download

OnLine resource
Associated Publication

Boeira Dias F, England MH, Morrison AK, & Galton-Fenzi B. (2025).: On the seasonal variability of ocean heat transport and ice shelf melt around Antarctica, EGUsphere [preprint], doi:10.5194/egusphere-2024-3905

Resource lineage

Statement
The Whole-Antarctica Ocean Model is based on the Regional Ocean Modelling System (https://www.myroms.org/) and is an open-source model; the specific ROMS version contains modification for the ice shelf coupling (https://github.com/bkgf/ROMSIceShelf_devel). All the model forcings are also open-source (ERA-Interim, ECCO2, SOSE initiatives). The model runs in a HPC environment at the National Computational Infrastructure (NCI), and all its outputs are stored in the Gadi gdata (gv90 and e14 projects). Model pre- and post-processing scripts are publicly available in my GitHub (https://github.com/fabiobdias/waom_notebook).
Hierarchy level
Dataset
Hierarchy level
Dataset

Metadata

Metadata identifier
urn:uuid/79d70b91-e7dd-444e-91b2-7f8c877ad9f9

Language
English
Character encoding
UTF8

Distributor

Institute for Marine and Antarctic Studies - (IMAS Data Manager)
IMAS website >

Type of resource

Resource scope
Dataset
Name
IMAS Dataset level record
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/79d70b91-e7dd-444e-91b2-7f8c877ad9f9

Point of truth URL of this metadata record

Date info (Creation)
2025-08-11T00:00:00
Date info (Revision)
2025-10-17T18:24:44

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

Southern Ocean dynamics ice shelf basal melting ocean circulation ocean heat transport ocean-ice shelf interactions
AODN Discovery Parameter Vocabulary
Current direction in the water body Ocean heat content Practical salinity of the water body
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Physical Oceanography
Global Change Master Directory Earth Science Keywords, Version 8.5
ICE GROWTH/MELT OCEAN CURRENTS POTENTIAL TEMPERATURE SALINITY SEA SURFACE TEMPERATURE INDICES SURFACE SALINITY

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Associated resources

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