Ivy Frenger
@ifrenger.bsky.social
Ocean scientist @geomarkiel.bsky.social. Views are my own.
📝 New study lead by Haichao Guo pointing to ventilation biases in climate models: doi.org/10.1029/2025...
Systematic Ocean Ventilation Biases in Climate Models Indicated by Chlorofluorocarbon‐12
Representation of ocean ventilation in climate and ocean models is evaluated with an observed and simulated anthropogenic abiotic tracer Current models systemically overestimate ventilation in th...
doi.org
October 2, 2026 at 2:48 PM
📝 New study lead by Haichao Guo pointing to ventilation biases in climate models: doi.org/10.1029/2025...
Study out that suggests consistent ventilation changes, in particular also in the North Atlantic:
A new GEOMAR-study demonstrates that the “age” of water masses in the North Atlantic has been increasing continuously since the 1990s – an indication of a weakening of the Atlantic circulation system.
🔗 www.geomar.de/en/news/arti...
📸 R. Abel, GEOMAR
🔗 www.geomar.de/en/news/arti...
📸 R. Abel, GEOMAR
April 22, 2026 at 6:59 PM
Study out that suggests consistent ventilation changes, in particular also in the North Atlantic:
Recent publication by Malte Jürchott, now at Bjerknes Centre for Climate Research, that challenges the marine CDR perception of artificial upwelling: unintended effects on ocean heat uptake are clearly more important.
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
Direct cooling effect of artificial upwelling dominates over its marine carbon dioxide removal potential
Direct cooling effect of artificial upwelling dominates over its marine carbon dioxide removal potential, Jürchott, M, Oschlies, A, Mengis, N, Frenger, I, Koeve, W
doi.org
December 5, 2025 at 3:38 PM
Recent publication by Malte Jürchott, now at Bjerknes Centre for Climate Research, that challenges the marine CDR perception of artificial upwelling: unintended effects on ocean heat uptake are clearly more important.
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
Reposted by Ivy Frenger
The ocean has been hoarding heat. Now it is building up a massive ‘burp.’
grist.org/oceans/hey-s...
#Ocean #Heat #Climate #Nature
grist.org/oceans/hey-s...
#Ocean #Heat #Climate #Nature
The ocean has been hoarding heat. Now it is building up a massive 'burp.'
Even if humans cut emissions enough to reduce global temperatures, new research shows the Southern Ocean could kick warming back into gear.
grist.org
November 7, 2025 at 10:36 PM
The ocean has been hoarding heat. Now it is building up a massive ‘burp.’
grist.org/oceans/hey-s...
#Ocean #Heat #Climate #Nature
grist.org/oceans/hey-s...
#Ocean #Heat #Climate #Nature
Our new study emphasizes the potential importance of the Southern Ocean under ambitious emission mitigation:
agupubs.onlinelibrary.wiley.com/doi/10.1029/..., with an EOS spotlight: eos.org/research-spo....
agupubs.onlinelibrary.wiley.com/doi/10.1029/..., with an EOS spotlight: eos.org/research-spo....
Southern Ocean Heat Burp in a Cooling World
Under net-negative CO2 emissions and global cooling ocean heat release causes substantial centennial scale atmospheric warming The ocean heat release originates from Southern Ocean deep convectio...
agupubs.onlinelibrary.wiley.com
October 22, 2025 at 2:54 PM
Our new study emphasizes the potential importance of the Southern Ocean under ambitious emission mitigation:
agupubs.onlinelibrary.wiley.com/doi/10.1029/..., with an EOS spotlight: eos.org/research-spo....
agupubs.onlinelibrary.wiley.com/doi/10.1029/..., with an EOS spotlight: eos.org/research-spo....
Forwarding from Torge Martin, Carolina Dufour, Andrew Meijers, Alyce Hancock:
In preparation of the SOOS/OCEAN ICE/Antarctica InSync workshop:
We gather an overview on goals of the Souther Ocean modelling community.
Questionnaire (closes September 10):
forms.gle/1VgrpMtcS5xi...
In preparation of the SOOS/OCEAN ICE/Antarctica InSync workshop:
We gather an overview on goals of the Souther Ocean modelling community.
Questionnaire (closes September 10):
forms.gle/1VgrpMtcS5xi...
Southern Ocean modelling: status, plans and needs
In preparation of the SOOS/OCEAN ICE/Antarctica InSync workshop on ice-ocean observation harmonisation and future priorities agenda, which will be held in Copenhagen in September this year and also se...
forms.gle
August 8, 2025 at 1:51 PM
Forwarding from Torge Martin, Carolina Dufour, Andrew Meijers, Alyce Hancock:
In preparation of the SOOS/OCEAN ICE/Antarctica InSync workshop:
We gather an overview on goals of the Souther Ocean modelling community.
Questionnaire (closes September 10):
forms.gle/1VgrpMtcS5xi...
In preparation of the SOOS/OCEAN ICE/Antarctica InSync workshop:
We gather an overview on goals of the Souther Ocean modelling community.
Questionnaire (closes September 10):
forms.gle/1VgrpMtcS5xi...
Interested in modeling the response of ocean carbon and heat storage to CO₂ emission stoppage or net-negative CO₂ emissions? I have a postdoc opening:
www.geomar.de/en/karriere/...
www.geomar.de/en/karriere/...
Postdoctoral researcher (m/f/d) in ocean and earth system modelling
www.geomar.de
April 4, 2025 at 10:47 AM
Interested in modeling the response of ocean carbon and heat storage to CO₂ emission stoppage or net-negative CO₂ emissions? I have a postdoc opening:
www.geomar.de/en/karriere/...
www.geomar.de/en/karriere/...
Researching ocean storage of carbon and heat? Considering to attend EGU25 (27 April – 2 May 2025)?
Submit an abstract to our session:
"Ocean storage and loss of carbon and heat, and relevance for climate":
meetingorganizer.copernicus.org/EGU25/sessio...
Looking forward to discussing at EGU25!
Submit an abstract to our session:
"Ocean storage and loss of carbon and heat, and relevance for climate":
meetingorganizer.copernicus.org/EGU25/sessio...
Looking forward to discussing at EGU25!
December 15, 2024 at 9:41 PM
Researching ocean storage of carbon and heat? Considering to attend EGU25 (27 April – 2 May 2025)?
Submit an abstract to our session:
"Ocean storage and loss of carbon and heat, and relevance for climate":
meetingorganizer.copernicus.org/EGU25/sessio...
Looking forward to discussing at EGU25!
Submit an abstract to our session:
"Ocean storage and loss of carbon and heat, and relevance for climate":
meetingorganizer.copernicus.org/EGU25/sessio...
Looking forward to discussing at EGU25!