Optimized Physical Tracer (OPT) reconstructions for past global ocean surface temperature, salinity and stable oxygen isotopes

Global ocean surface Optimized Physical Tracer (OPT) reconstructions of temperature, salinity and stable oxygen isotopes (δ18O) at past times reconstructed from modern interior ocean observations. Modern co-located observations of temperature, salinity and δ18O from NASA-GISS (Schmidtet al., 1999) and CISE-LOCEAN (Reverdin et al., 2022) datasets were assimilated into a steady state observation-based circulation model, the Total Matrix Intercomparsion (TMI; Gebbie and Huybers., 2010, 2012).

Simple

Date (Publication)
2025-04-14
Citation identifier
10.5281/zenodo.15181349
Status
Completed
Originator
  NORCE Research AS - Davila Rodriguez, Xabier ( )
Originator
  NORCE Research AS - McDonagh, Elaine
Originator
  Woods Hole Oceanographic Institution - Hamilton, Brynnydd
Originator
  Woods Hole Oceanographic Institution - Gebbie, Geoffrey
Maintenance and update frequency
Not planned
Keywords
Place

  • World

  • Global Ocean

Global Change Master Directory (GCMD) Keywords

  • OXYGEN ISOTOPES

  • SALINITY

  • WATER TEMPERATURE
Theme

  • Optimized Physical Tracer (OPT)

  • global ocean

  • ocean surface

  • stable oxygen isotopes

  • TMI

  • OCEAN:ICE
Access constraints
License
Use constraints
License
Other constraints

CC-BY 4.0 https://creativecommons.org/licenses/by/4.0

Spatial representation type
Grid
Language

eng
Character set
UTF8
Topic category
  • Oceans
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S
E
W
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Supplemental Information

Acknowledgement: This dataset was produced within the OCEAN:ICE project (Ocean-Cryosphere Exchanges in Antarctica: Impacts on Climate and the Earth System), funded by the European Union under Horizon Europe Grant Agreement No. 101060452.
Reference system identifier
WGS 1984
Number of dimensions
2
Dimension name
Row
Dimension name
Column
Cell geometry
Area
Transformation parameter availability
No
Distribution format
  • NetCDF ( )

OnLine resource
OPT reconstruction dataset on Zenodo ( WWW:LINK-1.0-http--link )

Zenodo repository record and access point for the Optimized Physical Tracer reconstruction dataset.

Hierarchy level
Dataset
Statement

Global ocean surface Optimized Physical Tracer (OPT) reconstructions of temperature, salinity and stable oxygen isotopes (δ18O) were generated from modern co-located observations of temperature, salinity and δ18O obtained from the NASA-GISS and CISE-LOCEAN datasets. These observations were assimilated into the Total Matrix Intercomparison (TMI), a steady-state observation-based ocean circulation model, to reconstruct past surface tracer distributions. The resulting reconstruction is distributed as a NetCDF dataset.
File identifier
129601d1-43d4-456d-874f-2960dacb28de XML
Metadata language
English
Character set
UTF8
Date stamp
2026-08-26T15:58:18
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Distributor
  ETT S.p.A. - ( )
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

OCEAN:ICE Optimized Physical Tracer (OPT) TMI global ocean ocean surface stable oxygen isotopes
Global Change Master Directory (GCMD) Keywords
OXYGEN ISOTOPES SALINITY WATER TEMPERATURE

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