Guillaume Boutin's Avatar

Guillaume Boutin

@drguibou

Physical Oceanographer focusing on sea ice-ocean interactions. French in Norway. My heart balances between outdoor evasion and a warm sofa.

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09.02.2024
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Latest posts by Guillaume Boutin @drguibou

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Apply for a doctoral position at the SEAL polar research school Doctoral positions are now available at the national polar research school SEAL - School of Excellence in Arctic and Antarctic Learning. The research school is funded by the Swedish Research Council a...

Come to Sweden! We are kicking off the new Swedish research school in Polar Science this summer, and under that umbrella there are currently a number of PhD positions announced (more on the way). Read more, and apply, here:

www.gu.se/en/seal/appl...

Shares = eternal karma
๐ŸŒŠ

04.03.2026 07:39 ๐Ÿ‘ 11 ๐Ÿ” 12 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Reflected satellite signals unlock new insights into Arctic sea ice - Earth Online Research drawing on novel data from Spire Global has enabled the generation of Arctic-wide sea ice maps, marking a major step forward for detecting change with navigation signals.

Scientists have been exploring how GPS and Galileo reflected signals can help monitor sea ice, using innovative data from @spire.com.
A promising new way to observe our rapidly changing polar regions:
๐Ÿ”— earth.esa.int/eogateway/su...

26.02.2026 14:10 ๐Ÿ‘ 25 ๐Ÿ” 6 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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The Arctic overturning circulation: transformations, pathways and timescales Abstract. The Arctic is the northernmost terminus of the Atlantic Meridional Overturning Circulation and is an important source of the densest waters feeding its lower limb. However, relatively little...

๐ŸŒŠWhere and how is dense water in the Arctic formed? In our new paper, we decompose the Arctic overturning circulation (ArMOC), the northernmost part of the AMOC. Check it out ๐Ÿ”ฝ

@bjerknes.uib.no @mariusarthun.bsky.social @kristoferdoos.bsky.social @nansensenteret.bsky.social @noc.ac.uk

13.02.2026 09:47 ๐Ÿ‘ 24 ๐Ÿ” 10 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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PhD Research Fellow in physical oceanography (295159) | University of Bergen Job title: PhD Research Fellow in physical oceanography (295159), Employer: University of Bergen, Deadline: Monday, March 16, 2026

Come join us! PhD position at @unibergen.bsky.social and @bjerknes.uib.no on freshwater transport from the Arctic Ocean and its impacts on the Nordic Seas and subpolar overturning circulation. The position is part of the national Arctic Ocean 2050 program.

www.jobbnorge.no/en/available...

09.02.2026 10:09 ๐Ÿ‘ 7 ๐Ÿ” 10 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
Original post on fediscience.org

๐Ÿ“ข We are hiring ! #fediHire

My group is looking for 2๏ธโƒฃ #research scientists in the field of #satellite ๐Ÿ›ฐ๏ธ remote sensing and data processing, to work in #Norway

One position (Tromsรธ or Oslo) will mostly be about #climate #SeaIce remote sensing from passive microwave sensors [โ€ฆ]

30.01.2026 10:09 ๐Ÿ‘ 2 ๐Ÿ” 24 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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Pour chaque dollar dรฉpensรฉ pour protรฉger la nature, 30ย dollars financent sa destruction Un rapport, publiรฉ jeudi par le Programme des Nations unies pour le dรฉveloppement, rappelle lโ€™importance de supprimer et de rediriger les investissements qui nuisent ร  lโ€™environnement, dont dรฉpendent la majoritรฉ des entreprises.

Pour chaque dollar dรฉpensรฉ pour protรฉger la nature, 30ย dollars financent sa destruction

22.01.2026 18:33 ๐Ÿ‘ 68 ๐Ÿ” 56 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 5
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Sure, Norway, Vestland, the fjords, the mountains, but do you know Limoges ? It's in Limousinโค๏ธ๐Ÿก

27.12.2025 13:07 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I'll have to pass this year sadly, but I joined 2 years ago and that was one of the best meeting I've ever attended! Sea ice from breakfast to dinner (and see nice people, also)

26.11.2025 18:46 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
a flyer for a phd opportunity. the background is a save, the overlay text reads: PhD opportunity, Submesoscale ocean flows and processes in the Southern Ocean. Logos are at the bottom on a white background for: NERC GW4+. University of Exeter, and National Oceanography Centre

a flyer for a phd opportunity. the background is a save, the overlay text reads: PhD opportunity, Submesoscale ocean flows and processes in the Southern Ocean. Logos are at the bottom on a white background for: NERC GW4+. University of Exeter, and National Oceanography Centre

PhD Opportunity! ๐Ÿšจ
Working with Dr Pauline Tedesco on "Submesoscale ocean flows and processes in the Southern Ocean."

NERC GW4+ DTP PhD studentship for September 2026.

DEADLINE: 8th Jan 2026

Find out more - www.exeter.ac.uk/study/fundin...

๐ŸŒŠ๐ŸŒ๐ŸŒ๐Ÿฆ‘๐Ÿงช #PhDsky #AcademicSky

25.11.2025 15:45 ๐Ÿ‘ 14 ๐Ÿ” 13 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Currently a large outbreak of cold, Arctic air is making its way south over the Norwegian Sea. The amazing mesh structure (called open-cell convection) in the satellite image (coloured image) is really hard for weather forecast models (grey image) to get 'right' @bjerknes.uib.no #ISOSCAN_project

14.11.2025 15:07 ๐Ÿ‘ 10 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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Proposal Writing Training and Idea Development for Earlyโ€Career Researchers Based on Constructive Alignment, Coโ€Creation and Active Learning Strategies We developed a novel concept for training in proposal writing, constructively aligning learning outcomes with students' needs, co-creating course content with teachers and students, and using active ....

๐Ÿงช ๐Ÿฅณ Its not every day that a group of research advisers publish in a scientific journal!

Early career researchers need proposal writing skills. Therefore a new way of teaching proposal writing was developed. It is now accessible to the research community.

onlinelibrary.wiley.com/doi/10.1002/...

12.11.2025 10:13 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Itโ€™s been a while since I shared these, so here we go!

If you are new to BlueSky, here are a few ๐ŸŒŠ ocean starter packs ๐ŸŒŠ to help you find who to follow:

Physical oceanography
go.bsky.app/Eb6xX19

Polar oceans
go.bsky.app/851nQgx

Organisations
go.bsky.app/U1Ei6XY

09.11.2025 12:35 ๐Ÿ‘ 27 ๐Ÿ” 14 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
Fisheye photo of a massive green and red curtain of aurora taken from a pier next to a fjord. The pier can be seen in the lower right corner with some people on it and few trees to the right. The fjord and the land on the other side can be seen on the lower left part of the picture. Finally the aurora appears like a massive mountain of light rising from the sea to, almost, the top of the picture. It presents shades of green and yellow on its lower part, with the majority in bright to deep red. Finally, of strong reflection of the aurora appears on the sea in a curved lower band in the pic.

Fisheye photo of a massive green and red curtain of aurora taken from a pier next to a fjord. The pier can be seen in the lower right corner with some people on it and few trees to the right. The fjord and the land on the other side can be seen on the lower left part of the picture. Finally the aurora appears like a massive mountain of light rising from the sea to, almost, the top of the picture. It presents shades of green and yellow on its lower part, with the majority in bright to deep red. Finally, of strong reflection of the aurora appears on the sea in a curved lower band in the pic.

Last year on this day, we had what is so far the best aurora show I ever saw in Bergen... and by far! It was also the first night I could play with my new fisheye lens. I had a lot of fun! I am really looking f... Read more on Instagram: https://www.instagram.com/p/DPoS7dUAjM6/

10.10.2025 13:00 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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By applying a tracking method to both climate models and satellite data, @davyclimate.bsky.social found that sea ice age is a more sensitive indicator of change than ice thickness or volume.

๐Ÿงช๐ŸŒŠ Read the publication here: agupubs.onlinelibrary.wiley.com/doi/epdf/10....

02.10.2025 10:42 ๐Ÿ‘ 6 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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A Fair Assessment of Sea Ice Age Reduces Bias and Gives New Insight to Arctic Sea Ice Dynamics We applied the same algorithm for diagnosing sea ice age in observations to a climate model for the first time The derived sea ice age reproduces the model dynamics but has much lower bias compar...

We have a new paper out today taking a fresh look at sea ice age, showing how this variable offers new insights into Arctic climate change:
A Fair Assessment of Sea Ice Age Reduces Bias and Gives New Insight to Arctic Sea Ice Dynamics
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

24.09.2025 08:27 ๐Ÿ‘ 9 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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In the Arctic, sea ice has a leading impact on ocean surface dynamics, mainly in the regions that are seasonally ice-covered. Supply et al., examine the seasonal cycle of the ocean surface conditions in the seasonal ice zone ๐ŸŒŠ

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

24.08.2025 06:10 ๐Ÿ‘ 1 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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a man stands in front of a sign that says " usivite " ALT: a man stands in front of a sign that says " usivite "

Aie...

15.08.2025 20:18 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Merci pour cette trรจs bonne sรฉrie d'รฉtรฉ !

08.08.2025 20:49 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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๐ŸŒŠThere is an available position as a postdoc at NORCE in ocean biochemical modelling fixed for a period of 2 years in Bergen.

The position will be affiliated with the Bjerknes Centre and is a part of OceanICU project.

๐ŸงชRead more and apply here: www.jobbnorge.no/en/available...

08.08.2025 08:35 ๐Ÿ‘ 24 ๐Ÿ” 20 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2

If you're interested in sea ice and how we can track its development, you may want to sign up for our 1-day seminar where we'll be talking about the breadth of ECVs for sea ice, new developments in tracking sea ice age, and the pitfalls and opportunities of climate model - observation comparisons.

18.07.2025 07:03 ๐Ÿ‘ 4 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Bar chart for Lisbon, Oslo, Paris, Rome, Vienna showing blue bars (tropical nights) vs orange bars (tropical 10 pms) in 2025 so far. Orange bars tower over blue in every city except Rome, highlighting bedtime heat.

Bar chart for Lisbon, Oslo, Paris, Rome, Vienna showing blue bars (tropical nights) vs orange bars (tropical 10 pms) in 2025 so far. Orange bars tower over blue in every city except Rome, highlighting bedtime heat.

๐ŸŒก๏ธ Not all hot nights are equal. We track โ€œtropical nightsโ€ when temps never dip below 20 ยฐCโ€”but what if itโ€™s already 20 ยฐC at bedtime? I crunched ERA5 data for 5 European capitals. Letโ€™s talk tropical 10 pm. ๐Ÿ‘‡

21.07.2025 11:22 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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Atlantification drives recent strengthening of the Arctic overturning circulation A less ice-covered Arctic shifts dense water formation northward, strengthening the Arctic Ocean overturning circulation.

The Arctic Ocean acts to stabilize the AMOC

New paper in #ScienceAdvances by researchers from @bjerknes.uib.no and @oxuniearthsci.bsky.social showing how ongoing Atlantification and sea ice loss leads to a strengthening of the Arctic overturning circulation.

www.science.org/doi/10.1126/...

14.07.2025 14:18 ๐Ÿ‘ 13 ๐Ÿ” 7 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1

This Scandinavian weather obviously โ˜€๏ธ๐Ÿ‡ง๐Ÿ‡ป (Come work with us!)

14.07.2025 13:41 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Researcher Position in Data Assimilation  (281670) | Nansen Environmental and Remote Sensing Center Job title: Researcher Position in Data Assimilation  (281670), Employer: Nansen Environmental and Remote Sensing Center, Deadline: Monday, August 18, 2025

Are you a data assimilation expert who enjoys Scandinavian weather?ย 
We're hiring a researcher to help develop our TOPAZ system for marine forecasting in the Arctic ๐ŸŒŠ
๐Ÿ”—ย Apply here: www.jobbnorge.no/en/available...

14.07.2025 12:52 ๐Ÿ‘ 0 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Is a monster web of ocean currents headed for collapse? The race is on to find out Research ships rarely brave the Greenland Sea in winter. Early this year, scientists ventured into the ice-covered waters to capture crucial data about the planetโ€™s future.

This ship braved the Greenland Sea in winter, venturing into ice-covered waters to capture crucial data about the Earth's future

https://go.nature.com/4ebFOGj

18.06.2025 10:35 ๐Ÿ‘ 48 ๐Ÿ” 16 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 4
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Searching for navigable seas and better ice predictions When Roald Amundsen planned his ship expedition to the North Pole, he saw no other option than sending his crew into the air to search for open leads.โ€ฆ

Means have changed, the aim is the same. Developing tools for navigation through sea ice requires creativity and technical skills, as shown by Anton Korosov and Artem Moiseev from @nansensenteret.bsky.social. ๐ŸŒŠ ๐Ÿงช

04.06.2025 13:07 ๐Ÿ‘ 5 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Pรฅ jakt etter farbar led og bedre isvarsler Da Roald Amundsen planla sin nordpolferd med ยซFramยป, sรฅ han ingen annen rรฅd enn รฅ sende mannskapet til vรฆrs for รฅ lete etter farbare rรฅker. Satellitterโ€ฆ

En forlรธper for satellitter? Kollegene mine ved @nansensenteret.bsky.social og @bjerknes.uib.no har andre verktรธy, men deler Amundsens mรฅl: รฅ gjรธre det lettere รฅ navigere i tettpakket is.

04.06.2025 13:12 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Please join us for a Summer'25 Lecture in #Climate #Data Science w/TOBIAS FINN @ecoledesponts.bsky.social!

๐Ÿ“… THIS THURSDAY || 6/5/25
๐Ÿ•› 12p EST
๐Ÿ“ @columbiaseas.bsky.social Innovation Hub/Zoom
๐Ÿ’ป RSVP: www.eventbrite.com/e/1363524320...

#LEAPEducation #community #physics #climatemodel #AI #ML

03.06.2025 14:19 ๐Ÿ‘ 4 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

How would a lifeless ocean effect future carbon uptake and storage? Turns out: biology matters for shaping the course of climate change! Great paper led by Jerry Tjiputra and summarized in this Carbon Brief guest post ๐ŸŒŠ

28.05.2025 17:57 ๐Ÿ‘ 6 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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๐ŸŒŠ Interested in a phd position in physical oceanography? Try beautiful Bergen! tinyurl.com/Phd-oceanogr...

19.05.2025 09:44 ๐Ÿ‘ 8 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0