Marcos Fontela
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marcosfontela.bsky.social
Marcos Fontela
@marcosfontela.bsky.social
270 followers 310 following 51 posts
Oceanography and climate change🌍| Now IIM-CSIC (Vigo) & CCMAR. Always the sea🌊

https://mfontela.github.io/web/
Posts Replies Media Videos
Reposted by Marcos Fontela
geotraces.bsky.social
New! GEOTRACES Data Product 2025-Now available! 🌊

Hydrographic and marine biogeochemical data from 123 cruises covering the global ocean

*Bulk download
bodc.ac.uk/geotraces/data/dp/
*Data subsetting
geotraces.webodv.awi.de
*Data analysis, visualisation
explore.webodv.awi.de
*Atlas
egeotraces.org
November 20, 2025 at 4:23 PM
marcosfontela.bsky.social
Wonderful reading! 📖
Eastern subpolar North Atlantic is a key region for ventilation. 👌🏻
jgroceans.bsky.social JGR: Oceans @jgroceans.bsky.social · Nov 1
The subpolar North Atlantic is one region where the deep ocean is in direct contact with the atmosphere, making it a key site for ocean ventilation. Koelling et al., use a new data product to study North Atlantic ventilation in unprecedented detail 🌊

agupubs.onlinelibrary.wiley.com/doi/10.1029/...
An idealized view of the subpolar gyre circulation, with colors corresponding to oxygen concentration
November 2, 2025 at 2:56 PM
Reposted by Marcos Fontela
o-snap.org
🌊 #Postdoc position available

📍 At WHOI with Dr. Le Bras

Analyse data from moored oxygen as part of the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP).

Requirements
✅ PhD in physical #oceanography

To apply: whoi.wd5.myworkdayjobs.com/en-US/WHOI-E...
Postdoctoral Investigator – Physical Oceanography
Job Summary The Woods Hole Oceanographic Institution (WHOI) invites applications for a Postdoctoral Investigator (PDI) in observational physical oceanography under the supervision of Dr. Isabela Le Br...
whoi.wd5.myworkdayjobs.com
October 23, 2025 at 4:16 PM
Reposted by Marcos Fontela
ianhall.bsky.social
🌊 Southern Ocean freshening stalls deep ocean CO2 release in a changing climate

www.nature.com/articles/s41...
Southern Ocean freshening stalls deep ocean CO2 release in a changing climate - Nature Climate Change
The Southern Ocean carbon sink is predicted to decline under climate change. This study explores why this is yet to be seen in observations, finding that recent surface freshening increases stratifica...
www.nature.com
October 18, 2025 at 8:22 AM
Reposted by Marcos Fontela
jgroceans.bsky.social
East Greenland is characterized as a transition zone between cold, fresh Arctic waters and warm, salty Atlantic waters. Gjelstrup et al., highlight the central role of the East Greenland Polar Front in mediating climate-ocean-ecosystem variability 🌊

agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Schematic of major surface circulation features in southeast Greenland.
October 6, 2025 at 6:48 AM
Reposted by Marcos Fontela
cdrmare.bsky.social
Do you know that our CDRmare infographics are published under a CC-BY licence? We do this to provide fact-based, scientifically accurate graphs to help everyone communicate on the topic of #mCDR. You can browse & download all our English-language infographics here. lnkd.in/eWcmmxsN.
September 29, 2025 at 10:16 AM
Reposted by Marcos Fontela
annasanchez.bsky.social
📣 PhD offer together with @davidamblas.bsky.social to investigate how ocean currents transport sediments in SE Greenland using hydrographic 🌊, biogeochemical 🔬, acoustic 🚢, satellite 🛰️, and modelling 💻 data.
Start: Spring 2026 (likely March), 4 years
📥 anna.sanchez@ub.edu (before 26/09!)
September 17, 2025 at 8:25 AM
Reposted by Marcos Fontela
dryool.bsky.social
A new #BiologicalPump rears its head (or maybe its tail feathers?) … 🌊
Periodic excretion patterns of seabirds in flight
Uesaka and Sato report on the excretion patterns of seabirds in the open ocean determined using a rear-facing video logger.
www.cell.com
September 3, 2025 at 8:34 AM
Reposted by Marcos Fontela
jens-d-mueller.bsky.social
🌊 In 2023, the ocean carbon sink weakened for the first time in a record-hot year 🌡️🌎
Our new study in Nature Climate Change quantifies this unexpected decline and explains how it came about. 👇
doi.org/10.1038/s415...
Unexpected decline in the ocean carbon sink under record-high sea surface temperatures in 2023 - Nature Climate Change
The ocean carbon sink strengthened in previous warm El Niño years due to reduced CO2 outgassing in the tropics. Here the authors show that the ocean carbon sink declined in 2023 despite record-high se...
doi.org
September 2, 2025 at 11:59 AM
Reposted by Marcos Fontela
markinchina.bsky.social
Meltwater strongly perturbs the carbonate system in the ocean. Henson et al., use new data from Greenland to show that, as well as driving an inorganic CO2 sink, the diluting influence of meltwater on alkalinity weakens the buffering capacity of these regions 🌊

www.nature.com/articles/s43...
August 26, 2025 at 1:19 AM
Reposted by Marcos Fontela
em-oyster.bsky.social
🚀OYSTER 4th Call for #ECR #Cooperation Projects is now open🌊

💡 On-line Networking & Information Session on September 5th
💰 #Funding for 2 projects up to €7000
⏳ Apply by October 10th
📚 Check Info and documents 👇
EuroMarine
EuroMarine is a member-based, interdisciplinary, collaborative network of European marine organisations and research institutes.
buff.ly
August 11, 2025 at 2:26 PM
marcosfontela.bsky.social
As cold 🧊 as your ex’s heart 🫀

Long live upwelling! 🙌🏻

(pic 🧑🏻‍💻 taken/stolen from MeteoGalicia 👌🏻🫣)
July 30, 2025 at 3:55 PM
Reposted by Marcos Fontela
commsearth.nature.com
🌊A greater proportion of diatoms rather than prokaryotes occur at oceanic fronts, indicating the significant role oceanic fronts play in plankton community composition.

@marinalocean.bsky.social

👉Read more here: www.nature.com/articles/s43...
Shift in phytoplankton community composition over fronts - Communications Earth & Environment
A greater proportion of diatoms rather than prokaryotes occur at oceanic fronts, indicating the significant role oceanic fronts play in plankton community composition, according to an analysis of ocea...
www.nature.com
July 28, 2025 at 2:16 PM
marcosfontela.bsky.social
Freshwater to get rid of the salt. 🧂

Miño river, Tui.
July 23, 2025 at 4:43 PM
marcosfontela.bsky.social
A 📸 cocktail from the last cruise. Vigo-Coruña 🌊

First one in the brand new R/V Odón de Buen. Hopefully 🤞🏻 many more to come!
July 22, 2025 at 7:44 AM
Reposted by Marcos Fontela
csic.es
🛥️ El nuevo buque oceanográfico del @ieo.es ‬(#CSIC), el Odón de Buen, ha realizado este fin de semana su primera escala en A Coruña, donde ha recibido la visita de más de 200 personas

🌊 El barco ha atracado en la ciudad tras la campaña de investigación #RADPROF2025 👇🧵
July 21, 2025 at 1:03 PM
Reposted by Marcos Fontela
jgroceans.bsky.social
The Cape Verde Frontal Zone is a dynamic region between the Mauritanian coast and the Subtropical North Atlantic. Campanero Nieto et al., evaluate the role played by dissolved organic matter in the biological carbon pump across the Cape Verde Front 🌊

agupubs.onlinelibrary.wiley.com/doi/10.1029/...
The regional survey conducted by the FLUXES I cruise
July 17, 2025 at 4:07 AM
marcosfontela.bsky.social
A little 🤏🏻 GPS can’t ruin a sunset 🌅 photograph 📸

#BOGAR DIY oceanography 🌊 performing extremely well in live action 🤗👌🏻
July 13, 2025 at 12:56 PM
marcosfontela.bsky.social
Usually I work at not so nice-to-see places.

Not today. 😉 R/V Odón de Buen, July 2025. 🌊
July 11, 2025 at 11:01 AM
marcosfontela.bsky.social
Last forest 🌳 walk pre-oceanographic 🌊 cruise with a surprise : this /Garrulus glandarius/ feather, a nice memento. 😃
July 8, 2025 at 2:36 PM
Reposted by Marcos Fontela
aida-alvera.bsky.social
The #DINEOF pictures that are shown daily at www.dineof.uliege.be adjust the colors to maximise contrast using the temperature interval of the last 10 days. Seems it can't keep up with the warming trend these days, it's just saturated over large areas (28°C!). You can look at the last 10days there 🌊
Two images showing (left) initial search surface temperature in the western Mediterranean Sea and (right) reconstructed data using DINEOF. Land in grey, warm temperatures in red (28°C) and "cool" temperatures in blue (24°C). Clouds in white.
July 6, 2025 at 2:12 PM
Reposted by Marcos Fontela
tracers-in-the-sea.bsky.social
🌊🧪 The salt dissolved in sea water is remarkably uniform in its major constituents. - Broecker and Peng (1982), Tracers in the Sea
July 2, 2025 at 6:00 PM
Reposted by Marcos Fontela
danielsandborn.bsky.social
Our paper describing Tracer-based Rapid Anthropogenic Carbon Estimation is out in ESSD! 🌊
doi.org/10.5194/essd...
#oceanography #carbon #matlab #software
Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE)
Abstract. The ocean is one of the largest sinks for anthropogenic carbon dioxide (Canth) and its removal of carbon dioxide (CO2) from the atmosphere has been valued at hundreds of billions to trillion...
doi.org
July 1, 2025 at 4:58 PM
marcosfontela.bsky.social
Summer in the NH is scoarching… 🌡️🥵☀️

So if you are lucky enough to be in Portugal, report your sightings to IPMA colleagues!
June 28, 2025 at 12:42 PM
Reposted by Marcos Fontela
jgroceans.bsky.social
The North Atlantic Current (NAC) is a source of heat toward the subpolar gyre and northern seas. Dotto et al., investigate NAC variability in the Iceland Basin finding that strong NAC periods are associated with less eddy kinetic energy 🌊

agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Schematic circulation of the North Atlantic
June 25, 2025 at 7:30 AM