Jay T. Cullen
@jaytcullen.bsky.social
Failed astronaut. Chemical Oceanographer. Professor and Director @seos-uvic.bsky.social
Interested in aviation, the ocean, climate science, space and music…
Interested in aviation, the ocean, climate science, space and music…
Reposted by Jay T. Cullen
The deep parts of the Arctic's Canada and Makarov Basins are among the most isolated waters in the ocean. Pasqualini et al., use tracer measurements to suggest that the last major flushing of deep water happened about 450 years ago 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
January 4, 2026 at 4:19 AM
The deep parts of the Arctic's Canada and Makarov Basins are among the most isolated waters in the ocean. Pasqualini et al., use tracer measurements to suggest that the last major flushing of deep water happened about 450 years ago 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Volunteered today @accfb.bsky.social. What a great organization! Collectively volunteers sorted over 20,000 lbs of food feeding over 20,000 county residents
January 1, 2026 at 12:02 AM
Volunteered today @accfb.bsky.social. What a great organization! Collectively volunteers sorted over 20,000 lbs of food feeding over 20,000 county residents
Scenes from SFO today
December 31, 2025 at 2:49 AM
Scenes from SFO today
An Arboreal Salamander in the Bay area…I think.
December 30, 2025 at 7:56 PM
An Arboreal Salamander in the Bay area…I think.
Reposted by Jay T. Cullen
⛏️🌋 Dreamy views of the Cascade volcanoes this weekend from the southern tip of Vancouver island: that’s Mt Baker looming behind Victoria, and Glacier Peak poking through the clouds behind Race Rocks
December 29, 2025 at 5:44 PM
⛏️🌋 Dreamy views of the Cascade volcanoes this weekend from the southern tip of Vancouver island: that’s Mt Baker looming behind Victoria, and Glacier Peak poking through the clouds behind Race Rocks
We @seos-uvic.bsky.social are particularly proud of our students in the BSc in Climate Science
🌥️ 2025 in review: We graduated our first climate science students.
Just two years after launching our climate science program, we celebrated our first three graduates this year—two in June, one in Nov.
🔗 Climate science: https://ow.ly/UeKO50XMZRc
🔗 Year-in-review: https://ow.ly/8f4450XMZQS
Just two years after launching our climate science program, we celebrated our first three graduates this year—two in June, one in Nov.
🔗 Climate science: https://ow.ly/UeKO50XMZRc
🔗 Year-in-review: https://ow.ly/8f4450XMZQS
December 29, 2025 at 12:46 AM
We @seos-uvic.bsky.social are particularly proud of our students in the BSc in Climate Science
Redwood Room at the Clift in San Francisco. Good spot for a tipple
December 26, 2025 at 12:10 AM
Redwood Room at the Clift in San Francisco. Good spot for a tipple
This but with praying mantis hatchlings
Obviously this is a terrible horror story.
But it reminds me of the year we cut down our own tree and apparently also brought home a spider egg sac that hatched out in the warmth of our house so we were relaxing in the living room and suddenly there were 10,000 tiny baby spiders everywhere.
But it reminds me of the year we cut down our own tree and apparently also brought home a spider egg sac that hatched out in the warmth of our house so we were relaxing in the living room and suddenly there were 10,000 tiny baby spiders everywhere.
they don’t tell you when you buy a christmas tree at the christmas tree farm that you could take it home, decorate it, and then be relaxing in your living room seven nights later when A BAT suddenly flies out and starts CRASHING AROUND YOUR HOUSE
December 25, 2025 at 5:03 AM
This but with praying mantis hatchlings
I love the fact that some of the seemingly mundane observations you record as part of your job might prove to be useful for someone else someday in the future
NEW: Organ tuners have been leaving temperature and humidity records in little-known books for decades. 🎹
They reveal how temperatures inside churches have changed over time due to climate change and increased heating.
A new scoop for The Reengineer!
www.thereengineer.pro/p/church-org...
They reveal how temperatures inside churches have changed over time due to climate change and increased heating.
A new scoop for The Reengineer!
www.thereengineer.pro/p/church-org...
Church organ tuning records mirror our warming climate
The records appear to reflect climate change, as well as the increased heating of churches in winter
www.thereengineer.pro
December 22, 2025 at 7:53 PM
I love the fact that some of the seemingly mundane observations you record as part of your job might prove to be useful for someone else someday in the future
🌊 I spent considerable time at RUMFS near Tuckerton NJ helping with field observations related to the LEO-15 project headed up by Drs. Oscar Schofield and Scott Glenn. Not as much time as @joegjoeg.bsky.social. Beautiful facility being slowly reclaimed by rising seas associated with climate change
In a new short film, Oscar-winning documentarian Thomas Lennon follows a group of scientists in New Jersey who are conducting a sobering experiment: studying the slow destruction of their coastal research station by rising seas.
Watch the film: bit.ly/4pO6DVI
Watch the film: bit.ly/4pO6DVI
December 22, 2025 at 2:54 PM
🌊 I spent considerable time at RUMFS near Tuckerton NJ helping with field observations related to the LEO-15 project headed up by Drs. Oscar Schofield and Scott Glenn. Not as much time as @joegjoeg.bsky.social. Beautiful facility being slowly reclaimed by rising seas associated with climate change
I predict there is fondue 🫕 in our future
December 21, 2025 at 2:13 AM
I predict there is fondue 🫕 in our future
1/ When communities decide to withhold healthcare from children by removing therapeutic levels of Fluoride from drinking water the negative impacts are quick and easily identifiable. Luckily cavities are normally not fatal and treatable.
December 20, 2025 at 5:08 AM
1/ When communities decide to withhold healthcare from children by removing therapeutic levels of Fluoride from drinking water the negative impacts are quick and easily identifiable. Luckily cavities are normally not fatal and treatable.
Reposted by Jay T. Cullen
And that’s a wrap on ArcticNet 2025!
The conference brought together community members, researchers, government, artists, and policy makers—highlighting the diversity of perspectives and the connections between different ways of knowing across the #Arctic region.
#KnowTheOcean #ASM2025
The conference brought together community members, researchers, government, artists, and policy makers—highlighting the diversity of perspectives and the connections between different ways of knowing across the #Arctic region.
#KnowTheOcean #ASM2025
December 19, 2025 at 8:26 PM
And that’s a wrap on ArcticNet 2025!
The conference brought together community members, researchers, government, artists, and policy makers—highlighting the diversity of perspectives and the connections between different ways of knowing across the #Arctic region.
#KnowTheOcean #ASM2025
The conference brought together community members, researchers, government, artists, and policy makers—highlighting the diversity of perspectives and the connections between different ways of knowing across the #Arctic region.
#KnowTheOcean #ASM2025
Reposted by Jay T. Cullen
One of the things I didn't expect my new job would lead to - trying to figure out where heavy metals in the ocean end up. For Atlantic lead, that is in no small part the Arctic Ocean.
🧪🌊
(in the end, it all goes to the sediment; it's the path that matters)
Link: www.nature.com/articles/s41...
🧪🌊
(in the end, it all goes to the sediment; it's the path that matters)
Link: www.nature.com/articles/s41...
December 19, 2025 at 3:12 PM
One of the things I didn't expect my new job would lead to - trying to figure out where heavy metals in the ocean end up. For Atlantic lead, that is in no small part the Arctic Ocean.
🧪🌊
(in the end, it all goes to the sediment; it's the path that matters)
Link: www.nature.com/articles/s41...
🧪🌊
(in the end, it all goes to the sediment; it's the path that matters)
Link: www.nature.com/articles/s41...
🌊 Call for abstracts now open for Goldschmidt 2026 to be held in Montréal PQ 🇨🇦. Deadline is Feb. 26, 2026 conf.goldschmidt.info/goldschmidt/...
Goldschmidt 2026 Conference
conf.goldschmidt.info
December 17, 2025 at 3:26 PM
🌊 Call for abstracts now open for Goldschmidt 2026 to be held in Montréal PQ 🇨🇦. Deadline is Feb. 26, 2026 conf.goldschmidt.info/goldschmidt/...
Reposted by Jay T. Cullen
Thanks for the nice write up of our forthcoming expedition in January! 🌊
In October I got to go on the ship people wanted to call Boaty McBoatface before it headed off to the Antarctic to study its future in our changing climate. Mariana from @chemistryworld.com made the video, and I wrote this article: www.chemistryworld.com/features/the... I hope you enjoy them both!
December 15, 2025 at 7:22 PM
Thanks for the nice write up of our forthcoming expedition in January! 🌊
Reposted by Jay T. Cullen
November 2025 observed more anomalous warmth across the entire Canadian Arctic Archipelago. The saturated red color indicates all of these areas were at least 5°C above the 1981-2010 average.
Data from doi.org/10.24381/cds...
Data from doi.org/10.24381/cds...
December 11, 2025 at 2:32 PM
November 2025 observed more anomalous warmth across the entire Canadian Arctic Archipelago. The saturated red color indicates all of these areas were at least 5°C above the 1981-2010 average.
Data from doi.org/10.24381/cds...
Data from doi.org/10.24381/cds...
The idea that people who are not well just need to be marketed to is the opposite of what caring for people and their wellness is…
Roger Marshall: "We want patients to become consumers again. We want patients to see what the actual prices are. We believe that if we would add the price tags to this bill, that it would save the country a trillion dollars a year."
December 11, 2025 at 6:31 AM
The idea that people who are not well just need to be marketed to is the opposite of what caring for people and their wellness is…
Reposted by Jay T. Cullen
#AshmoleanAdvent Day 10: Evening Snow at Kiyomizudera
This woodblock print shows a view from inside the Kiyomizudera Temple in Kyoto on a snowy evening by Kawase Hasui.
Snow falls steadily, forming drifts on the wooden balcony. Through the pillars, two figures can be seen looking out.
This woodblock print shows a view from inside the Kiyomizudera Temple in Kyoto on a snowy evening by Kawase Hasui.
Snow falls steadily, forming drifts on the wooden balcony. Through the pillars, two figures can be seen looking out.
December 10, 2025 at 8:01 AM
#AshmoleanAdvent Day 10: Evening Snow at Kiyomizudera
This woodblock print shows a view from inside the Kiyomizudera Temple in Kyoto on a snowy evening by Kawase Hasui.
Snow falls steadily, forming drifts on the wooden balcony. Through the pillars, two figures can be seen looking out.
This woodblock print shows a view from inside the Kiyomizudera Temple in Kyoto on a snowy evening by Kawase Hasui.
Snow falls steadily, forming drifts on the wooden balcony. Through the pillars, two figures can be seen looking out.
Reposted by Jay T. Cullen
🌊
⚒️ Article: Earthquakes influence the amount of hydrothermal iron entering the ocean over the Australian Antarctic Ridge, which can support phytoplankton blooms by relieving surface iron limitation
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Southern Ocean net primary production influenced by seismically modulated hydrothermal iron - Nature Geoscience
Earthquakes influence the amount of hydrothermal iron entering the ocean over the Australian Antarctic Ridge, which can support phytoplankton blooms by relieving surface iron limitation, according to ...
www.nature.com
December 9, 2025 at 7:52 PM
🌊
Reposted by Jay T. Cullen
In addition to detecting today's #earthquake off Japan's northeast coast, ONC's 'land+sea' seismic sensor network also picked up the 7.0 magnitude earthquake that shook the Kluane National Park region on December 6.
Learn more on CBC 📰 www.cbc.ca/news/canada/...
#KnowTheOcean
Learn more on CBC 📰 www.cbc.ca/news/canada/...
#KnowTheOcean
December 8, 2025 at 9:37 PM
In addition to detecting today's #earthquake off Japan's northeast coast, ONC's 'land+sea' seismic sensor network also picked up the 7.0 magnitude earthquake that shook the Kluane National Park region on December 6.
Learn more on CBC 📰 www.cbc.ca/news/canada/...
#KnowTheOcean
Learn more on CBC 📰 www.cbc.ca/news/canada/...
#KnowTheOcean
Reposted by Jay T. Cullen
The M7.2 offshore Japan detected offshore Canada 🇨🇦 @oceannetworks.ca
December 8, 2025 at 2:46 PM
The M7.2 offshore Japan detected offshore Canada 🇨🇦 @oceannetworks.ca
Reposted by Jay T. Cullen
I was on CBC's Yukon Morning today speaking about Saturday's Hubbard Glacier M7.0 earthquake and its aftershocks.
Coincidentally, I got an audible alert on my phone for the M7.6 earthquake in Japan while we were on air!
www.cbc.ca/listen/live-...
Coincidentally, I got an audible alert on my phone for the M7.6 earthquake in Japan while we were on air!
www.cbc.ca/listen/live-...
www.cbc.ca
December 8, 2025 at 4:45 PM
I was on CBC's Yukon Morning today speaking about Saturday's Hubbard Glacier M7.0 earthquake and its aftershocks.
Coincidentally, I got an audible alert on my phone for the M7.6 earthquake in Japan while we were on air!
www.cbc.ca/listen/live-...
Coincidentally, I got an audible alert on my phone for the M7.6 earthquake in Japan while we were on air!
www.cbc.ca/listen/live-...
🌊
Changing circulation patterns in the Arctic Ocean could affect weather thousands of miles away. Researchers dig into the details in new work. eos.org/research-spo...
Tiny Turbulent Whirls Keep the Arctic Ocean Flowing - Eos
Centimeter-sized turbulence controls the rate at which the Arctic Ocean churns.
eos.org
December 8, 2025 at 2:12 PM
🌊
This seems like bad news if you are a fish
This is excellent. But when will we be able to get it? The filter I mean. Someone will try to sell you a washing-machine fish, don't fall for it.
Fish-inspired filter removes 99% of microplastics from washing machine wastewater
Wastewater from washing machines is considered a major source of microplastics—tiny plastic particles that are suspected of harming human and animal health. Researchers at the University of Bonn have ...
techxplore.com
December 7, 2025 at 10:09 PM
This seems like bad news if you are a fish