Britta Jensen
@tephrabird.bsky.social
Associate Professor, Earth and Atmospheric Sciences at the University of Alberta. I like things that fly through the air (not shit hitting fan though), science, nature, pottery, and well, many things actually. Opinions are my own and probably questionable.
Pinned
Britta Jensen
@tephrabird.bsky.social
· Jan 20
My first social media account ever (except my lab account @tephrotastic.bsky.social). My science is tephrochronology, volcanoes, stratigraphy & climate. I am an amateur potter, advanced procrastinator, middling, but enthusiastic, birder. Growing a garden for bumblebees, can't wait for my next hike.
Come one, come all! It will be a great time at #EGU2026! COT will also be hosting a meeting and organizing a pub night.
🌋 Hello tephra & volcano fans 🌋
We have some announcements, including THREE tephra sessions at the #EGU2026 and TWO special issues! Check out our flyer below with all the details, and pass it on!
@egu.eu @ingvterremoti.bsky.social @iavcei.bsky.social @tephraportal.bsky.social
🧪⚒️
We have some announcements, including THREE tephra sessions at the #EGU2026 and TWO special issues! Check out our flyer below with all the details, and pass it on!
@egu.eu @ingvterremoti.bsky.social @iavcei.bsky.social @tephraportal.bsky.social
🧪⚒️
November 20, 2025 at 3:47 AM
Come one, come all! It will be a great time at #EGU2026! COT will also be hosting a meeting and organizing a pub night.
Reposted by Britta Jensen
Eruption of the Hunga Tonga–Hunga Haʻapai in 2022 was a unique phreatic eruption even where we can learn many things on the effects of explosive eruptions on the Earth system.
Eruption was so large that in the atmosphere formed transient ice ring.
www.nature.com/articles/s43...
🧪 ⚒️ #Geology
Eruption was so large that in the atmosphere formed transient ice ring.
www.nature.com/articles/s43...
🧪 ⚒️ #Geology
November 15, 2025 at 5:18 PM
Eruption of the Hunga Tonga–Hunga Haʻapai in 2022 was a unique phreatic eruption even where we can learn many things on the effects of explosive eruptions on the Earth system.
Eruption was so large that in the atmosphere formed transient ice ring.
www.nature.com/articles/s43...
🧪 ⚒️ #Geology
Eruption was so large that in the atmosphere formed transient ice ring.
www.nature.com/articles/s43...
🧪 ⚒️ #Geology
Reposted by Britta Jensen
Abstract submission is open for #EGU2026!
Join our session ESSI3.6 "From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research." Share your multidisciplinary research, workflows, best practices, and cyberinfrastructure.
meetingorganizer.copernicus.org/EGU26/sessio...
Join our session ESSI3.6 "From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research." Share your multidisciplinary research, workflows, best practices, and cyberinfrastructure.
meetingorganizer.copernicus.org/EGU26/sessio...
Browse by session
meetingorganizer.copernicus.org
October 23, 2025 at 3:14 PM
Abstract submission is open for #EGU2026!
Join our session ESSI3.6 "From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research." Share your multidisciplinary research, workflows, best practices, and cyberinfrastructure.
meetingorganizer.copernicus.org/EGU26/sessio...
Join our session ESSI3.6 "From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research." Share your multidisciplinary research, workflows, best practices, and cyberinfrastructure.
meetingorganizer.copernicus.org/EGU26/sessio...
Reposted by Britta Jensen
Cool use of a clumped isotopologue in wood! - Isotopic evidence for elevated photorespiration during the last glacial period www.nature.com/articles/s41...
Isotopic evidence for elevated photorespiration during the last glacial period - Nature Geoscience
Low carbon dioxide levels during the last glacial period enhanced photorespiration in trees across North America, indicating a decline in land plant productivity, according to measurements of clumped ...
www.nature.com
November 6, 2025 at 6:01 PM
Cool use of a clumped isotopologue in wood! - Isotopic evidence for elevated photorespiration during the last glacial period www.nature.com/articles/s41...
Another one of Zack’s posts that you want to like because his work is great, but can’t because what it says is definitively not likeable. My asters are still blooming in Edmonton. In November. We haven’t had a hard enough frost to kill them. That snow? Gone today, highs of 8 today, 12 (!) tomorrow.
November 9, 2025 at 2:53 PM
Another one of Zack’s posts that you want to like because his work is great, but can’t because what it says is definitively not likeable. My asters are still blooming in Edmonton. In November. We haven’t had a hard enough frost to kill them. That snow? Gone today, highs of 8 today, 12 (!) tomorrow.
Reposted by Britta Jensen
“300 years on from the birth of James Hutton, these ideas are still relevant. They’ve laid the foundations of geology, but they also remind us that these ongoing processes that don’t stop”
Help make the deep time trail a reality. Donate today at www.crowdfunder.co.uk/siccar-point
Help make the deep time trail a reality. Donate today at www.crowdfunder.co.uk/siccar-point
November 3, 2025 at 4:20 PM
“300 years on from the birth of James Hutton, these ideas are still relevant. They’ve laid the foundations of geology, but they also remind us that these ongoing processes that don’t stop”
Help make the deep time trail a reality. Donate today at www.crowdfunder.co.uk/siccar-point
Help make the deep time trail a reality. Donate today at www.crowdfunder.co.uk/siccar-point
Super interesting. And a nice follow up story on CBC. Would be nice if they grew their presence on Bluesky, ahem.
@cbcradiocanada.bsky.social
@cbcradiocanada.bsky.social
October 29, 2025 at 9:16 AM
Super interesting. And a nice follow up story on CBC. Would be nice if they grew their presence on Bluesky, ahem.
@cbcradiocanada.bsky.social
@cbcradiocanada.bsky.social
Current situation. Happens regularly. They should fix this, at least on the cross country trains. People saying sorry constantly as they block the aisle because there is no room for luggage. And then those bonking into luggage saying sorry as well. Kind of makes me feel like I am in Canada again 😂
Biggest reverse culture shock since being back is these sorry excuses for luggage racks on trains. My suitcase fits in no position other than this, which then prevents anybody else from using the shelf. And the wheels still overhang.
October 27, 2025 at 11:15 AM
Current situation. Happens regularly. They should fix this, at least on the cross country trains. People saying sorry constantly as they block the aisle because there is no room for luggage. And then those bonking into luggage saying sorry as well. Kind of makes me feel like I am in Canada again 😂
Reposted by Britta Jensen
We have limited edition replica Hutton Tassie Medals available as rewards if you donate to the #SiccarPoint #DeepTimeTrail crowdfunder: www.crowdfunder.co.uk/siccar-point
Building the James Hutton Deep Time Trail
We are raising vital funds for a new Deep Time Trail at Siccar Point to celebrate the life and legacy of James Hutton for his Tercentenary.
www.crowdfunder.co.uk
October 27, 2025 at 9:01 AM
We have limited edition replica Hutton Tassie Medals available as rewards if you donate to the #SiccarPoint #DeepTimeTrail crowdfunder: www.crowdfunder.co.uk/siccar-point
Reposted by Britta Jensen
Very happy to share another new paper. This one on an entirely different topic; the timing and interaction of alpine glaciers with at the northern margin of the Cordilleran Ice Sheet. www.sciencedirect.com/science/arti...
Timing and interaction of Pleistocene alpine glaciers at the northern margin of the Cordilleran Ice Sheet, southwest Yukon
Stratigraphic and geomorphic analysis paired with 10Be surface exposure dating provides evidence of extensive local ice growth in the Ruby Range, sout…
www.sciencedirect.com
October 21, 2025 at 3:34 PM
Very happy to share another new paper. This one on an entirely different topic; the timing and interaction of alpine glaciers with at the northern margin of the Cordilleran Ice Sheet. www.sciencedirect.com/science/arti...
#fieldworkfriday! Early June was steep hikes in Jasper National Park looking for erratics. The Canadian Rockies are truly astounding. One of my favourite places on the planet, lucky I live pretty close! So many geology questions remain. Also nice to support Jasper after last year’s awful fires. ⚒️🧪🪨
October 17, 2025 at 7:59 AM
#fieldworkfriday! Early June was steep hikes in Jasper National Park looking for erratics. The Canadian Rockies are truly astounding. One of my favourite places on the planet, lucky I live pretty close! So many geology questions remain. Also nice to support Jasper after last year’s awful fires. ⚒️🧪🪨
Given the cost of some academic books these days I wonder if this could be seen as a legitimate grant expense… what a find. ⚒️
Up for auction next week in Edinburgh - Scottish mathematician James Stirling’s library; including his copy of James Hutton’s Theory of the Earth.. #HistSci
www.lyonandturnbull.com/auctions/boo...
www.lyonandturnbull.com/auctions/boo...
Hutton, James the Theory of the Earth, From the Transactions of the Royal Society of Edinburgh
Auction from 'The Library of James Stirling, Mathematician', 23 October 2025 from 13:00 GMT. Lot 71. [Edinburgh, c.1787]. [2] 96 [2] pp., half-title, ‘Explanation of Plate' leaf to rear, 2 engraved pl...
www.lyonandturnbull.com
October 17, 2025 at 7:29 AM
Given the cost of some academic books these days I wonder if this could be seen as a legitimate grant expense… what a find. ⚒️
Reposted by Britta Jensen
🚨New paper!
Our latest study, led by Sophie Vineberg, integrates proximal & distal tephra records to reveal the timing and dispersal of large explosive eruptions at Aso volcano (Japan) 🌋
🔗 doi.org/10.1016/j.jvolgeores.2025.108436
#tephra #volcanology #Aso #Japan #LakeSuigetsu #tephrochronology
Our latest study, led by Sophie Vineberg, integrates proximal & distal tephra records to reveal the timing and dispersal of large explosive eruptions at Aso volcano (Japan) 🌋
🔗 doi.org/10.1016/j.jvolgeores.2025.108436
#tephra #volcanology #Aso #Japan #LakeSuigetsu #tephrochronology
October 16, 2025 at 8:26 AM
🚨New paper!
Our latest study, led by Sophie Vineberg, integrates proximal & distal tephra records to reveal the timing and dispersal of large explosive eruptions at Aso volcano (Japan) 🌋
🔗 doi.org/10.1016/j.jvolgeores.2025.108436
#tephra #volcanology #Aso #Japan #LakeSuigetsu #tephrochronology
Our latest study, led by Sophie Vineberg, integrates proximal & distal tephra records to reveal the timing and dispersal of large explosive eruptions at Aso volcano (Japan) 🌋
🔗 doi.org/10.1016/j.jvolgeores.2025.108436
#tephra #volcanology #Aso #Japan #LakeSuigetsu #tephrochronology
Reposted by Britta Jensen
Hello Bluesky! We’re excited to be here. Join us for updates on:
🔋 energy sources and distribution
🌲 forests and forestry
⛏️ minerals and mining
🛰️ earth sciences
🔌 energy efficiency
🔬 science and data
🔋 energy sources and distribution
🌲 forests and forestry
⛏️ minerals and mining
🛰️ earth sciences
🔌 energy efficiency
🔬 science and data
October 14, 2025 at 12:47 PM
Hello Bluesky! We’re excited to be here. Join us for updates on:
🔋 energy sources and distribution
🌲 forests and forestry
⛏️ minerals and mining
🛰️ earth sciences
🔌 energy efficiency
🔬 science and data
🔋 energy sources and distribution
🌲 forests and forestry
⛏️ minerals and mining
🛰️ earth sciences
🔌 energy efficiency
🔬 science and data
Hits a bit too close… gah. 😩
The University: We need to become leaders in climate and sustainability and there is an urgent need to develop climate science courses.
Me: Our department has climate in the name and we already offer courses on climate science at every level.
The University: Who invited you to this meeting?
Me: Our department has climate in the name and we already offer courses on climate science at every level.
The University: Who invited you to this meeting?
October 8, 2025 at 12:25 PM
Hits a bit too close… gah. 😩
Reposted by Britta Jensen
Over the last six weeks, SEES scientists Mengwen, Patrick, Helen & Andrea jointed the Beyond EPICA – Oldest Ice project, which aims to analyse the oldest ice on Earth – up to 1.5 million years old, beyond the 800,000 years previously covered – to understand more about Earth's climate 🧊🧪🥼 @bas.ac.uk
October 7, 2025 at 4:45 PM
Over the last six weeks, SEES scientists Mengwen, Patrick, Helen & Andrea jointed the Beyond EPICA – Oldest Ice project, which aims to analyse the oldest ice on Earth – up to 1.5 million years old, beyond the 800,000 years previously covered – to understand more about Earth's climate 🧊🧪🥼 @bas.ac.uk
Reposted by Britta Jensen
👋 Hello, Bluesky! We’re Radiocarbon, an international peer-reviewed journal (since 1959) dedicated to advancing radiocarbon research, from calibration and chronology to applications across archaeology, geology, environmental science, and more. We’re glad to be here. #Radiocarbon #Geochronology
October 3, 2025 at 5:10 PM
👋 Hello, Bluesky! We’re Radiocarbon, an international peer-reviewed journal (since 1959) dedicated to advancing radiocarbon research, from calibration and chronology to applications across archaeology, geology, environmental science, and more. We’re glad to be here. #Radiocarbon #Geochronology
@ualberta.bsky.social
How about showing EAS you also think we are worth supporting?The geoscience side has lost so many that we are losing research capacity and ability to teach our programs. Best rated in Canada. Top 5 in North America. But not for long. Investing in existing strengths pays too!
How about showing EAS you also think we are worth supporting?The geoscience side has lost so many that we are losing research capacity and ability to teach our programs. Best rated in Canada. Top 5 in North America. But not for long. Investing in existing strengths pays too!
🚨FOUR tenure track positions in my dept @ucalgary.bsky.social @ucalgaryscience.bsky.social in applied & computational geophysics, subsurface geochemistry, sedimentary geology, and sustainable soil science. careers.ucalgary.ca/search/jobs?...
(please reskeet widely!) #academicsky 🧪⚒️🇨🇦
(please reskeet widely!) #academicsky 🧪⚒️🇨🇦
Opportunities
matching 'earth'
Search 4 Careers available at University of Calgary.
careers.ucalgary.ca
October 5, 2025 at 10:50 AM
@ualberta.bsky.social
How about showing EAS you also think we are worth supporting?The geoscience side has lost so many that we are losing research capacity and ability to teach our programs. Best rated in Canada. Top 5 in North America. But not for long. Investing in existing strengths pays too!
How about showing EAS you also think we are worth supporting?The geoscience side has lost so many that we are losing research capacity and ability to teach our programs. Best rated in Canada. Top 5 in North America. But not for long. Investing in existing strengths pays too!
Reposted by Britta Jensen
Hello folks! We're thrilled to announce that the 2025 University of Alberta Space Exploration Symposium will take place Wednesday, October 15th, Thursday October 16th, and Friday, October 17th. Stay tuned for more info about participation and our two fantastic keynote speakers! 🌟
September 11, 2025 at 4:02 PM
Hello folks! We're thrilled to announce that the 2025 University of Alberta Space Exploration Symposium will take place Wednesday, October 15th, Thursday October 16th, and Friday, October 17th. Stay tuned for more info about participation and our two fantastic keynote speakers! 🌟
I jumped ahead last #fieldworkfriday and forgot about our first year geology field school before Iceland. Amazing rocks, landscapes and students on a road trip through southern Alberta and SE BC. Drumheller to Waterton, Fernie and Jasper just to name a few spots. Glorious. ⚒️🧪🪨
October 3, 2025 at 5:22 PM
I jumped ahead last #fieldworkfriday and forgot about our first year geology field school before Iceland. Amazing rocks, landscapes and students on a road trip through southern Alberta and SE BC. Drumheller to Waterton, Fernie and Jasper just to name a few spots. Glorious. ⚒️🧪🪨
Reposted by Britta Jensen
Dr Markland was the heartbeat of Friday’s @coffeeoutside.bsky.social in Edmonton.
Here’s a few of my favorite photos from over the years.
You made us all better humans for knowing you. RIP
Here’s a few of my favorite photos from over the years.
You made us all better humans for knowing you. RIP
September 25, 2025 at 3:11 AM
Dr Markland was the heartbeat of Friday’s @coffeeoutside.bsky.social in Edmonton.
Here’s a few of my favorite photos from over the years.
You made us all better humans for knowing you. RIP
Here’s a few of my favorite photos from over the years.
You made us all better humans for knowing you. RIP
Also currently in (sunny?!) St. Andrews Scotland learning the mysteries of volcanic sulphur isotopes from ice cores with @oceanicandrea.bsky.social and the tephra crew. I want to thank @uniofstandrews.bsky.social and their amazing Global Fellowship scheme for making this opportunity possible. 🌋
September 26, 2025 at 9:13 AM
Also currently in (sunny?!) St. Andrews Scotland learning the mysteries of volcanic sulphur isotopes from ice cores with @oceanicandrea.bsky.social and the tephra crew. I want to thank @uniofstandrews.bsky.social and their amazing Global Fellowship scheme for making this opportunity possible. 🌋
Have been laying low, but wanting do something light hearted, I will start sharing my summer for #fieldworkFriday. In May I joined the @iavcei.bsky.social @volc-ice.bsky.social field trip in Iceland. Stunning sunny days the entire time, so I can’t go back 🤣. Ready for future field work in NW BC! ⚒️🧪
September 26, 2025 at 8:54 AM
Have been laying low, but wanting do something light hearted, I will start sharing my summer for #fieldworkFriday. In May I joined the @iavcei.bsky.social @volc-ice.bsky.social field trip in Iceland. Stunning sunny days the entire time, so I can’t go back 🤣. Ready for future field work in NW BC! ⚒️🧪
The most disturbing thing for me in this video are all the people with cameras that run and swarm around this women as she is knocked to the ground by the agent. It looks like a feeding frenzy out in the ocean. Just angling to get a better view of the abuse. This world is cooked.
1/ I’m Till Eckert, a ProPublica reporter. For the past 2 weeks, I’ve been going to the same NY immigration courthouse.
Nearly every time, I see ICE agents arresting immigrants. Today, a woman was slammed to the ground after begging officials not to take her husband away.
Thread 👇
Nearly every time, I see ICE agents arresting immigrants. Today, a woman was slammed to the ground after begging officials not to take her husband away.
Thread 👇
September 26, 2025 at 8:30 AM
The most disturbing thing for me in this video are all the people with cameras that run and swarm around this women as she is knocked to the ground by the agent. It looks like a feeding frenzy out in the ocean. Just angling to get a better view of the abuse. This world is cooked.
That was exactly what I needed today.
September 4, 2025 at 10:35 PM
That was exactly what I needed today.