Water-mass fractions and ideal age from three models of ocean transport
This dataset comprises three NetCDF files, one for each of three models of global ocean transport: a 1° global configuration of the Nucleus for European Modelling of the Ocean (NEMO), a recent 2° solution of the Ocean Circulation Inverse Model (OCIM), and a 2° solution of the Total Matrix Intercomparison (TMI).
Each file provides the steady-state three-dimensional distributions of six dye tracers and the ideal age tracer.
The dye tracers represent water-mass fractions, or the fraction of local water volume that was last at the surface in a specific source region. The six source regions are: Antarctic marginal seas (AA), high southern latitudes (HS), mid southern latitudes (MS), low latitudes (LL), northern North Pacific (NP) and northern North Atlantic and Arctic (NA).
The ideal age tracer represents the mean time elapsed since the last surface contact of local seawater.
Simple
- Date (Publication)
- 2024-12-13
- Purpose
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To provide steady-state three-dimensional estimates of water-mass fractions and ideal age from three global ocean transport models for the investigation and comparison of global ocean ventilation.
- Status
- Completed
- Maintenance and update frequency
- Not planned
- Theme
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OCEAN ICE
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ocean ventilation
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ocean modelling
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water masses
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water-mass fractions
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ideal age
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dye tracers
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NEMO
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OCIM
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TMI
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- Place
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World
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Global Change Master Directory (GCMD) Keywords
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OCEAN CIRCULATION
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WATER MASSES
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Continents, countries, sea regions of the world.
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World
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- Access constraints
- License
- Use constraints
- License
- Other constraints
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Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/deed.en
- Spatial representation type
- Grid
- Language
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eng
- Character set
- UTF8
- Topic category
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- Oceans
))
- Supplemental Information
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The creation of this dataset is endorsed by Ocean-Cryosphere Exchanges in ANtarctica: Impacts on Climate and the Earth System (OCEAN ICE), which is funded by European Union, Horizon Europe Funding Programme for research and innovation under grant agreement Nr. 101060452, 10.3030/101060452.
- Reference system identifier
- WGS 1984
- Number of dimensions
- 3
- Cell geometry
- Area
- Distribution format
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NetCDF
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)
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NetCDF
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)
- OnLine resource
- SEANOE dataset landing page – DOI 10.17882/103915 ( WWW:LINK-1.0-http--link )
- OnLine resource
- Water-mass fractions and ideal age estimated from a NEMO ORCA1 global ocean simulation ( WWW:DOWNLOAD-1.0-http--download )
- OnLine resource
- Water-mass fractions and ideal age estimated from OCIM2-48L ( WWW:DOWNLOAD-1.0-http--download )
- OnLine resource
- Water-mass fractions and ideal age estimated from a 2º solution of TMI ( WWW:DOWNLOAD-1.0-http--download )
- OnLine resource
- Description of netCDF variables ( WWW:DOWNLOAD-1.0-http--download )
- Hierarchy level
- Dataset
- Statement
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The dataset consists of three processed NetCDF files containing steady-state three-dimensional distributions of six dye tracers and an ideal age tracer generated using three global ocean transport models: a 1° global configuration of NEMO, a 2° solution of OCIM (OCIM2-48L), and a 2° solution of TMI. The six dye tracers represent water-mass fractions associated with six surface source regions: Antarctic marginal seas, high southern latitudes, mid southern latitudes, low latitudes, northern North Pacific, and northern North Atlantic and Arctic. The ideal age tracer represents the mean time elapsed since the last surface contact of local seawater.
- File identifier
- 58cc0d87-55a9-4ee9-9d70-759ae7d60dd7 XML
- Metadata language
- English
- Character set
- UTF8
- Date stamp
- 2026-08-24T15:04:57
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
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1.0
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Spatial extent
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