Dr Tommy Ryan-Keogh
@tjryankeogh.bsky.social
Ocean biogeochemist based at the Southern Ocean Carbon-Climate Observatory, South Africa
Reposted by Dr Tommy Ryan-Keogh
🌊 We’re hiring! Permanent position for an assistant research scientist in marine autonomous systems at NOC Southampton. Do you enjoy developing python tools and data workflows? And have an interest in marine science? Apply before 10 December! careers.noc.ac.uk/vacancy/assi...
Careers | National Oceanography Centre
careers.noc.ac.uk
November 24, 2025 at 8:42 AM
🌊 We’re hiring! Permanent position for an assistant research scientist in marine autonomous systems at NOC Southampton. Do you enjoy developing python tools and data workflows? And have an interest in marine science? Apply before 10 December! careers.noc.ac.uk/vacancy/assi...
Reposted by Dr Tommy Ryan-Keogh
🌊 The GEOTRACES Summer School has started!
📅 17–21 Nov 2025 - Cape Town, South Africa
🔗 geotraces-2025.sciencesconf.org
Training 36 students in marine biogeochemistry of trace elements & isotopes
Thanks @cnrs.fr @scor-int.bsky.social
#EarlyCareers #summerschool
#marinescience #oceanscience
📅 17–21 Nov 2025 - Cape Town, South Africa
🔗 geotraces-2025.sciencesconf.org
Training 36 students in marine biogeochemistry of trace elements & isotopes
Thanks @cnrs.fr @scor-int.bsky.social
#EarlyCareers #summerschool
#marinescience #oceanscience
November 17, 2025 at 10:52 AM
🌊 The GEOTRACES Summer School has started!
📅 17–21 Nov 2025 - Cape Town, South Africa
🔗 geotraces-2025.sciencesconf.org
Training 36 students in marine biogeochemistry of trace elements & isotopes
Thanks @cnrs.fr @scor-int.bsky.social
#EarlyCareers #summerschool
#marinescience #oceanscience
📅 17–21 Nov 2025 - Cape Town, South Africa
🔗 geotraces-2025.sciencesconf.org
Training 36 students in marine biogeochemistry of trace elements & isotopes
Thanks @cnrs.fr @scor-int.bsky.social
#EarlyCareers #summerschool
#marinescience #oceanscience
Reposted by Dr Tommy Ryan-Keogh
We’re proud to launch our new 10-year strategy: by deepening our knowledge of the ocean, we help every living thing on our planet flourish.
Our focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.
Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk
Our focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.
Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk
Our Vision For The Next Decade
YouTube video by National Oceanography Centre
youtu.be
November 4, 2025 at 3:30 PM
We’re proud to launch our new 10-year strategy: by deepening our knowledge of the ocean, we help every living thing on our planet flourish.
Our focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.
Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk
Our focus:
🌎 Climate 🐟Biodiversity 🌪️ Hazards & Pollution 🌊 Sustainable Marine Economy 🧊 Arctic changes.
Watch through our eyes here: 🎬 youtu.be/v6MSq2Qi2Sk
Reposted by Dr Tommy Ryan-Keogh
🌊 Postdoc Opportunity: Ocean Biogeochemical Modelling
Alessandro Tagliabue at the University of Liverpool is hiring a 3-year Postdoctoral Research Associate @altagliabue.bsky.social
🔗Details & apply www.jobs.ac.uk/job/DPG117/p...
#Postdoc #Oceanography #Biogeochemistry #AcademicJobs #ScienceJobs
Alessandro Tagliabue at the University of Liverpool is hiring a 3-year Postdoctoral Research Associate @altagliabue.bsky.social
🔗Details & apply www.jobs.ac.uk/job/DPG117/p...
#Postdoc #Oceanography #Biogeochemistry #AcademicJobs #ScienceJobs
November 3, 2025 at 2:38 PM
🌊 Postdoc Opportunity: Ocean Biogeochemical Modelling
Alessandro Tagliabue at the University of Liverpool is hiring a 3-year Postdoctoral Research Associate @altagliabue.bsky.social
🔗Details & apply www.jobs.ac.uk/job/DPG117/p...
#Postdoc #Oceanography #Biogeochemistry #AcademicJobs #ScienceJobs
Alessandro Tagliabue at the University of Liverpool is hiring a 3-year Postdoctoral Research Associate @altagliabue.bsky.social
🔗Details & apply www.jobs.ac.uk/job/DPG117/p...
#Postdoc #Oceanography #Biogeochemistry #AcademicJobs #ScienceJobs
Reposted by Dr Tommy Ryan-Keogh
Western Indian subantarctic phytoplankton blooms fertilized by iron-enriched Agulhas water 🌊
rdcu.be/eMTV2?utm_ca...
rdcu.be/eMTV2?utm_ca...
Western Indian subantarctic phytoplankton blooms fertilized by iron-enriched Agulhas water
Nature Geoscience - Recurrent phytoplankton blooms in the western Indian Subantarctic Zone are largely supported by iron-rich water transported into the region by the Agulhas Current, according to...
rdcu.be
November 2, 2025 at 11:51 AM
Western Indian subantarctic phytoplankton blooms fertilized by iron-enriched Agulhas water 🌊
rdcu.be/eMTV2?utm_ca...
rdcu.be/eMTV2?utm_ca...
Reposted by Dr Tommy Ryan-Keogh
Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊
www.jobs.ac.uk/job/DPG117/p...
www.jobs.ac.uk/job/DPG117/p...
Postdoctoral Research Associate at University of Liverpool
Looking for a new job opportunity in academia? Check out this job opening for a Postdoctoral Research Associate on jobs.ac.uk!
www.jobs.ac.uk
October 29, 2025 at 5:38 PM
Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊
www.jobs.ac.uk/job/DPG117/p...
www.jobs.ac.uk/job/DPG117/p...
Reposted by Dr Tommy Ryan-Keogh
🚨 Register now! Launch of GEOTRACES Intermediate Data Product 2025! 🌊
🎥 Join our release webinars:
20 Nov 13:15 UTC | 25 Nov 05:00 UTC
📝 Register: forms.gle/H4bMQ6PgjtQR...
Discover a rich collection of hydrographic and marine geochemical data!
@scor-int.bsky.social
@unoceandecade.bsky.social
🎥 Join our release webinars:
20 Nov 13:15 UTC | 25 Nov 05:00 UTC
📝 Register: forms.gle/H4bMQ6PgjtQR...
Discover a rich collection of hydrographic and marine geochemical data!
@scor-int.bsky.social
@unoceandecade.bsky.social
October 21, 2025 at 12:16 PM
🚨 Register now! Launch of GEOTRACES Intermediate Data Product 2025! 🌊
🎥 Join our release webinars:
20 Nov 13:15 UTC | 25 Nov 05:00 UTC
📝 Register: forms.gle/H4bMQ6PgjtQR...
Discover a rich collection of hydrographic and marine geochemical data!
@scor-int.bsky.social
@unoceandecade.bsky.social
🎥 Join our release webinars:
20 Nov 13:15 UTC | 25 Nov 05:00 UTC
📝 Register: forms.gle/H4bMQ6PgjtQR...
Discover a rich collection of hydrographic and marine geochemical data!
@scor-int.bsky.social
@unoceandecade.bsky.social
Reposted by Dr Tommy Ryan-Keogh
August 2025 data is now available for both Antarctic sea-ice thickness/volume (zacklabe.com/antarctic-se...) and global sea-ice volume (zacklabe.com/global-sea-i...) from GIOMAS. Another monthly record low (globally)!
#DataViz #SciComm #OpenScience #OpenData 🧪🌊⚒️
#DataViz #SciComm #OpenScience #OpenData 🧪🌊⚒️
September 23, 2025 at 2:10 AM
August 2025 data is now available for both Antarctic sea-ice thickness/volume (zacklabe.com/antarctic-se...) and global sea-ice volume (zacklabe.com/global-sea-i...) from GIOMAS. Another monthly record low (globally)!
#DataViz #SciComm #OpenScience #OpenData 🧪🌊⚒️
#DataViz #SciComm #OpenScience #OpenData 🧪🌊⚒️
Reposted by Dr Tommy Ryan-Keogh
Whilst trace metals influence ocean productivity, there are a paucity of regions where their spatial and temporal variability are well explored. Ortega et al., investigate the drivers of trace metal dynamics in the productive Northern Gulf of Alaska 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
September 20, 2025 at 6:31 AM
Whilst trace metals influence ocean productivity, there are a paucity of regions where their spatial and temporal variability are well explored. Ortega et al., investigate the drivers of trace metal dynamics in the productive Northern Gulf of Alaska 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Reposted by Dr Tommy Ryan-Keogh
🌊New paper out using 7Be to constrain global atmospheric deposition.
"aerosol processes are more dynamic than previously estimated, with important implications for...aerosol-driven climate effects and marine biogeochemical processes globally."
In memory of David Kadko.
rdcu.be/eHihM
"aerosol processes are more dynamic than previously estimated, with important implications for...aerosol-driven climate effects and marine biogeochemical processes globally."
In memory of David Kadko.
rdcu.be/eHihM
Constraining aerosol deposition over the global ocean
Nature Geoscience - Aerosol deposition onto the surface of the ocean has been underestimated, suggesting that aerosol lifetimes over the ocean are longer than previously appreciated, according to a...
rdcu.be
September 19, 2025 at 8:48 PM
🌊New paper out using 7Be to constrain global atmospheric deposition.
"aerosol processes are more dynamic than previously estimated, with important implications for...aerosol-driven climate effects and marine biogeochemical processes globally."
In memory of David Kadko.
rdcu.be/eHihM
"aerosol processes are more dynamic than previously estimated, with important implications for...aerosol-driven climate effects and marine biogeochemical processes globally."
In memory of David Kadko.
rdcu.be/eHihM
Reposted by Dr Tommy Ryan-Keogh
🌊 I have a new paper out in L&O Letters! We show that ocean color-based estimates of chlorophyll concentrations within 100 km of the Antarctic coastline are severely underestimated when applying the standard NASA L2gen atmospheric processing. This is caused by adjacency effects from ice and snow.
September 6, 2025 at 11:40 PM
🌊 I have a new paper out in L&O Letters! We show that ocean color-based estimates of chlorophyll concentrations within 100 km of the Antarctic coastline are severely underestimated when applying the standard NASA L2gen atmospheric processing. This is caused by adjacency effects from ice and snow.
Excited to start my new position at the @noc.ac.uk today. Feels like coming home to where my academic career began
September 1, 2025 at 7:40 AM
Excited to start my new position at the @noc.ac.uk today. Feels like coming home to where my academic career began
Reposted by Dr Tommy Ryan-Keogh
Researchers from the NOC have begun ground-breaking Arctic fieldwork in the fjords around Greenland to understand glacial meltwater’s impact on the carbon cycle, supported by Augmentum. 🧊🔁🌊
Read more here ➡️https://noc.ac.uk/news/noc-partners-augmentum-support-arctic-mission
Read more here ➡️https://noc.ac.uk/news/noc-partners-augmentum-support-arctic-mission
August 27, 2025 at 12:56 PM
Researchers from the NOC have begun ground-breaking Arctic fieldwork in the fjords around Greenland to understand glacial meltwater’s impact on the carbon cycle, supported by Augmentum. 🧊🔁🌊
Read more here ➡️https://noc.ac.uk/news/noc-partners-augmentum-support-arctic-mission
Read more here ➡️https://noc.ac.uk/news/noc-partners-augmentum-support-arctic-mission
Reposted by Dr Tommy Ryan-Keogh
🌊 I’m hiring! Last few days to apply!! Research Scientist in Marine Ecology & Machine Learning at the National Oceanography Centre, Southampton (UK). Got experience with machine learning techniques applied to marine ecology, biogeochemistry or climate change? careers.noc.ac.uk/vacancy/rese...
careers.noc.ac.uk
August 27, 2025 at 8:02 AM
🌊 I’m hiring! Last few days to apply!! Research Scientist in Marine Ecology & Machine Learning at the National Oceanography Centre, Southampton (UK). Got experience with machine learning techniques applied to marine ecology, biogeochemistry or climate change? careers.noc.ac.uk/vacancy/rese...
Reposted by Dr Tommy Ryan-Keogh
Phytoplankton are microscopic plants living in the water column. They flourish around Antarctica, where they both remove carbon from the atmosphere and are the base of the food web. Over the last 25 years, they have changed, and it's related to ice lose. 🧪🌊
Link: www.nature.com/articles/s41...
Link: www.nature.com/articles/s41...
July 28, 2025 at 7:08 AM
Phytoplankton are microscopic plants living in the water column. They flourish around Antarctica, where they both remove carbon from the atmosphere and are the base of the food web. Over the last 25 years, they have changed, and it's related to ice lose. 🧪🌊
Link: www.nature.com/articles/s41...
Link: www.nature.com/articles/s41...
Today I had my farewell drinks at SOCCO. My 2 year postdoc position that turned into a beautiful 10 year adventure.
From September I will be starting my new position @noc.ac.uk as a Senior Researcher in the Ocean BioGeoSciences group.
From September I will be starting my new position @noc.ac.uk as a Senior Researcher in the Ocean BioGeoSciences group.
July 23, 2025 at 6:13 PM
Today I had my farewell drinks at SOCCO. My 2 year postdoc position that turned into a beautiful 10 year adventure.
From September I will be starting my new position @noc.ac.uk as a Senior Researcher in the Ocean BioGeoSciences group.
From September I will be starting my new position @noc.ac.uk as a Senior Researcher in the Ocean BioGeoSciences group.
🌊PhD Positions Available🌊
If you are interested in studying marine CDR check out the link below. There are 3 positions available at Stellenbosch University in the School of Climate Science. The applications will remain open until all positions are filled.
climate.sun.ac.za/blog/three-p...
If you are interested in studying marine CDR check out the link below. There are 3 positions available at Stellenbosch University in the School of Climate Science. The applications will remain open until all positions are filled.
climate.sun.ac.za/blog/three-p...
Three PhD bursaries in marine Carbon Dioxide Removal (mCDR) - School for Climate Studies
The School for Climate Studies at Stellenbosch University (www.climate.sun.ac.za ) in collaboration with the Southern Ocean Carbon Climate Observatory (SOCCO) at CSIR, DFFE: Oceans and Coasts Branch, ...
climate.sun.ac.za
June 23, 2025 at 2:57 PM
🌊PhD Positions Available🌊
If you are interested in studying marine CDR check out the link below. There are 3 positions available at Stellenbosch University in the School of Climate Science. The applications will remain open until all positions are filled.
climate.sun.ac.za/blog/three-p...
If you are interested in studying marine CDR check out the link below. There are 3 positions available at Stellenbosch University in the School of Climate Science. The applications will remain open until all positions are filled.
climate.sun.ac.za/blog/three-p...
En route to the final SWINGS/GEOTRACES GS02 post cruise meeting. Prepared for a week of sharing ideas and drafting papers.
June 8, 2025 at 2:34 PM
En route to the final SWINGS/GEOTRACES GS02 post cruise meeting. Prepared for a week of sharing ideas and drafting papers.
En route to the final SWINGS/GEOTRACES GS02 post cruise meeting. Prepared for a week of sharing ideas and drafting papers.
June 8, 2025 at 2:34 PM
En route to the final SWINGS/GEOTRACES GS02 post cruise meeting. Prepared for a week of sharing ideas and drafting papers.
🌊 Registration now open for the GEOTRACES summer school.
📅 17-21 November | Cape Town
🎓Training in marine biogeochemistry of trace elements and isotopes for 36 students
Applications close 30 June 2025
geotraces-2025.sciencesconf.org
📅 17-21 November | Cape Town
🎓Training in marine biogeochemistry of trace elements and isotopes for 36 students
Applications close 30 June 2025
geotraces-2025.sciencesconf.org
May 27, 2025 at 3:12 PM
🌊 Registration now open for the GEOTRACES summer school.
📅 17-21 November | Cape Town
🎓Training in marine biogeochemistry of trace elements and isotopes for 36 students
Applications close 30 June 2025
geotraces-2025.sciencesconf.org
📅 17-21 November | Cape Town
🎓Training in marine biogeochemistry of trace elements and isotopes for 36 students
Applications close 30 June 2025
geotraces-2025.sciencesconf.org
🌊 New paper led by @sarahnicholson.bsky.social, myself and others. We generated a multi-year, multi-algorithm data product of global phytoplankton bloom phenology. The data is provided at 3 different spatial resolutions depending upon your study requirements.
essd.copernicus.org/articles/17/...
essd.copernicus.org/articles/17/...
Satellite-derived global-ocean phytoplankton phenology indices
Abstract. Phytoplankton bloom phenology is an important indicator for the monitoring and management of marine resources and the assessment of climate change impacts on ocean ecosystems. Despite its re...
essd.copernicus.org
May 12, 2025 at 10:36 AM
🌊 New paper led by @sarahnicholson.bsky.social, myself and others. We generated a multi-year, multi-algorithm data product of global phytoplankton bloom phenology. The data is provided at 3 different spatial resolutions depending upon your study requirements.
essd.copernicus.org/articles/17/...
essd.copernicus.org/articles/17/...
10 years ago today I landed in Cape Town for a 2 year postdoc position. Countless memories, 3 job promotions and 1 husband later I would say accepting this position was one of the best decisions I’ve ever made.
May 6, 2025 at 5:36 AM
10 years ago today I landed in Cape Town for a 2 year postdoc position. Countless memories, 3 job promotions and 1 husband later I would say accepting this position was one of the best decisions I’ve ever made.
🌊 interesting article on the status of polar research in South Africa. Here’s hoping something will finally be done to fix the many issues.
www.dailymaverick.co.za/article/2025...
www.dailymaverick.co.za/article/2025...
Marion Island ‘power crisis’: Generator clings to life as relief ship takes its time
Just one life-saving machine is still limping along at the isolated outpost. Back-up systems have thrown in the towel. As help from the South African mainland has been delayed again, all base staff ca...
www.dailymaverick.co.za
April 17, 2025 at 1:25 PM
🌊 interesting article on the status of polar research in South Africa. Here’s hoping something will finally be done to fix the many issues.
www.dailymaverick.co.za/article/2025...
www.dailymaverick.co.za/article/2025...