Lina Polvi Sjöberg
@fluvialsweden.bsky.social
River scientist-- fluvial geomorphology & connections with all else fluvial and riparian: sediment, complexity, beavers, vegetation, ice, boulders, lakes and more! Stream restoration & communicating research. Associate professor at Umeå Uni, Sweden
New article alert!
Is there always longitudinal connectivity in rivers? What about those fragmented by lakes and semi-alluvial reaches? We found extremely low connectivity in paraglacial regions based on continuity of channel width changes and in riparian vegetation.
www.nature.com/articles/s43...
Is there always longitudinal connectivity in rivers? What about those fragmented by lakes and semi-alluvial reaches? We found extremely low connectivity in paraglacial regions based on continuity of channel width changes and in riparian vegetation.
www.nature.com/articles/s43...
Disrupted geomorphic and biotic stream connectivity in paraglacial regions - Communications Earth & Environment
Natural disconnectivity in paraglacial river networks disrupts downstream trends in channel width and riparian plant richness, as revealed by two catchments with local controls on channel width and species dispersal.
www.nature.com
October 2, 2025 at 10:55 AM
New article alert!
Is there always longitudinal connectivity in rivers? What about those fragmented by lakes and semi-alluvial reaches? We found extremely low connectivity in paraglacial regions based on continuity of channel width changes and in riparian vegetation.
www.nature.com/articles/s43...
Is there always longitudinal connectivity in rivers? What about those fragmented by lakes and semi-alluvial reaches? We found extremely low connectivity in paraglacial regions based on continuity of channel width changes and in riparian vegetation.
www.nature.com/articles/s43...
”Unprecedented cuts to the National Science Foundation endanger research that improves economic growth, national security and your life” theconversation.com/unprecedente...
Unprecedented cuts to the National Science Foundation endanger research that improves economic growth, national security and your life
The Trump administration has terminated hundreds of federal grants that support engineering, biology, geology, computer science, STEM education and much more.
theconversation.com
May 15, 2025 at 6:03 PM
”Unprecedented cuts to the National Science Foundation endanger research that improves economic growth, national security and your life” theconversation.com/unprecedente...
Reposted by Lina Polvi Sjöberg
I received a heartbreaking email today: A paper in a special issue I’m editing is being retracted because one of its authors is afraid of losing their job and their legal status in the U.S. if they publish a scientific study on evolution. Yes, on evolution, nature's engine of diversity.
March 29, 2025 at 11:52 PM
I received a heartbreaking email today: A paper in a special issue I’m editing is being retracted because one of its authors is afraid of losing their job and their legal status in the U.S. if they publish a scientific study on evolution. Yes, on evolution, nature's engine of diversity.
Reposted by Lina Polvi Sjöberg
Hydrology Paper of the Day @fluvialsweden.bsky.social on video-based surface velocimetry analyses to quantify ice-on-river processes for rivers situated in Finland and Sweden: ice cover and flow velocities; effects of air temperature and ice melting; and linkages with environmental parameters.
New study on river ice! Phd student Tuure Takala led this study where we used video-based surface velocimetry analyses (STIV) to examine flow velocities during freeze-up & break-up… interesting effects of partial river ice!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Surface flow and ice rafting velocities during freezing and thawing periods in Nordic rivers
In the present climate, almost all high-latitude rivers in northern regions freeze every winter. In the future, however, climate change may cause shif…
www.sciencedirect.com
March 7, 2025 at 3:28 AM
Hydrology Paper of the Day @fluvialsweden.bsky.social on video-based surface velocimetry analyses to quantify ice-on-river processes for rivers situated in Finland and Sweden: ice cover and flow velocities; effects of air temperature and ice melting; and linkages with environmental parameters.
Reposted by Lina Polvi Sjöberg
NEW: Senator Marshall (R-KS) RUNS AWAY, fleeing his own town hall after being asked about DOGE firing Veterans. MAKE HIM GO VIRAL.
March 1, 2025 at 6:21 PM
NEW: Senator Marshall (R-KS) RUNS AWAY, fleeing his own town hall after being asked about DOGE firing Veterans. MAKE HIM GO VIRAL.
Reposted by Lina Polvi Sjöberg
A wildfire swept through Wyoming’s Medicine Bow Forest in 2020, yet one green oasis remained: a beaver-engineered wetland. 🔥
Scientist @emilyfairfax.bsky.social is proving what nature has long known: beavers are the solution.
📺 Full story: youtu.be/F-HWKkIyfl0?...
#BeaverPower #ClimateResilience
Scientist @emilyfairfax.bsky.social is proving what nature has long known: beavers are the solution.
📺 Full story: youtu.be/F-HWKkIyfl0?...
#BeaverPower #ClimateResilience
Why engineers are turning to beavers for insights into managing water resources
YouTube video by PBS NewsHour
youtu.be
February 21, 2025 at 6:44 PM
A wildfire swept through Wyoming’s Medicine Bow Forest in 2020, yet one green oasis remained: a beaver-engineered wetland. 🔥
Scientist @emilyfairfax.bsky.social is proving what nature has long known: beavers are the solution.
📺 Full story: youtu.be/F-HWKkIyfl0?...
#BeaverPower #ClimateResilience
Scientist @emilyfairfax.bsky.social is proving what nature has long known: beavers are the solution.
📺 Full story: youtu.be/F-HWKkIyfl0?...
#BeaverPower #ClimateResilience
Reposted by Lina Polvi Sjöberg
Dear Democratic Party: why are you not screaming this from every rooftop? Why are you not holding press conferences with these poor fired people - putting a face on what the richest man is destroying?
“The thing that I can’t get over is that the actual richest man in the world directed my fucking firing. I make $50k a year and work to keep drinking water safe. The richest man in the world decided that was an expense too great for the American taxpayer.”
Yesterday many thousands of federal employees were terminated. This is a Reddit thread for federal employees that got laid off.
February 16, 2025 at 4:48 AM
Dear Democratic Party: why are you not screaming this from every rooftop? Why are you not holding press conferences with these poor fired people - putting a face on what the richest man is destroying?
Reposted by Lina Polvi Sjöberg
I’m here for folks who want to speak about what’s going on inside NOAA and what might be at risk (and can honor requests for anonymity). Reach me securely on Signal @bqe210.91 www.theguardian.com/us-news/2025...
Doge staffers enter Noaa headquarters and incite reports of cuts and threats
Members reportedly sought access to IT systems at agency that Project 2025 has called ‘harmful to US prosperity’
www.theguardian.com
February 5, 2025 at 8:13 PM
I’m here for folks who want to speak about what’s going on inside NOAA and what might be at risk (and can honor requests for anonymity). Reach me securely on Signal @bqe210.91 www.theguardian.com/us-news/2025...
Reposted by Lina Polvi Sjöberg
Hi all, I'm a WIRED journalist on the science desk. If you're a government scientist or federally funded researcher with info to share about the Trump transition, please feel free to contact me securely on Signal: emullin.06
February 5, 2025 at 7:30 PM
Hi all, I'm a WIRED journalist on the science desk. If you're a government scientist or federally funded researcher with info to share about the Trump transition, please feel free to contact me securely on Signal: emullin.06
Reposted by Lina Polvi Sjöberg
The U.S. Department of Labor is organizing a protest. Elon Musk’s staff will be present at the Frances Perkins Building in Washington, D.C., today at 4 p.m. It was mentioned that staff should plan to stay late after the 4 p.m. meeting to assist with setting up Elon Musk staffers into their systems.
February 5, 2025 at 6:07 PM
The U.S. Department of Labor is organizing a protest. Elon Musk’s staff will be present at the Frances Perkins Building in Washington, D.C., today at 4 p.m. It was mentioned that staff should plan to stay late after the 4 p.m. meeting to assist with setting up Elon Musk staffers into their systems.
Reposted by Lina Polvi Sjöberg
🚨 all EGU journals have cancelled their Twitter/X feeds 👏👏 But for reasons beyond me have decided not to engage with BlueSky 🤷 - if you’d like a BlueSky presence for your favourite EGU journal - I’d suggest getting in touch with @eurogeosciences.bsky.social (or liking this message?) pls RT 😀👏
February 5, 2025 at 9:38 AM
🚨 all EGU journals have cancelled their Twitter/X feeds 👏👏 But for reasons beyond me have decided not to engage with BlueSky 🤷 - if you’d like a BlueSky presence for your favourite EGU journal - I’d suggest getting in touch with @eurogeosciences.bsky.social (or liking this message?) pls RT 😀👏
Reposted by Lina Polvi Sjöberg
Sharing this from Rt. Rev. Jonathan H. Folts, Bishop of the Episcopal Diocese of South Dakota.
“One of our own priests was targeted at his home—so let no one say, ‘it can’t happen here.’ It can. It has. It is. And rest assured, we will not remain silent or passive in responding.”
My heart aches.
“One of our own priests was targeted at his home—so let no one say, ‘it can’t happen here.’ It can. It has. It is. And rest assured, we will not remain silent or passive in responding.”
My heart aches.
February 3, 2025 at 5:32 PM
Sharing this from Rt. Rev. Jonathan H. Folts, Bishop of the Episcopal Diocese of South Dakota.
“One of our own priests was targeted at his home—so let no one say, ‘it can’t happen here.’ It can. It has. It is. And rest assured, we will not remain silent or passive in responding.”
My heart aches.
“One of our own priests was targeted at his home—so let no one say, ‘it can’t happen here.’ It can. It has. It is. And rest assured, we will not remain silent or passive in responding.”
My heart aches.
Reposted by Lina Polvi Sjöberg
Keep pushing back. Hard.
He blinked on tariffs.
His California water stunt failed and has been ridiculed.
He was forced to roll back cutting grants and govt payments.
NSF support is resuming.
CDC webpages are being restored.
Street protests are starting.
Lawsuits are being filed.
Fight back.
He blinked on tariffs.
His California water stunt failed and has been ridiculed.
He was forced to roll back cutting grants and govt payments.
NSF support is resuming.
CDC webpages are being restored.
Street protests are starting.
Lawsuits are being filed.
Fight back.
February 4, 2025 at 4:56 AM
Keep pushing back. Hard.
He blinked on tariffs.
His California water stunt failed and has been ridiculed.
He was forced to roll back cutting grants and govt payments.
NSF support is resuming.
CDC webpages are being restored.
Street protests are starting.
Lawsuits are being filed.
Fight back.
He blinked on tariffs.
His California water stunt failed and has been ridiculed.
He was forced to roll back cutting grants and govt payments.
NSF support is resuming.
CDC webpages are being restored.
Street protests are starting.
Lawsuits are being filed.
Fight back.
Reposted by Lina Polvi Sjöberg
Hear me out —
If parents call colleges freaked about their FAFSA data being leaked, schools may have to issue statements — which would reach a whole lot more families about how warped this is.
Organizing isn’t always calling electeds. Sometimes it’s just calling people with a bigger megaphone.
If parents call colleges freaked about their FAFSA data being leaked, schools may have to issue statements — which would reach a whole lot more families about how warped this is.
Organizing isn’t always calling electeds. Sometimes it’s just calling people with a bigger megaphone.
Musk staff have access to student aid data now.
February 4, 2025 at 3:06 AM
Hear me out —
If parents call colleges freaked about their FAFSA data being leaked, schools may have to issue statements — which would reach a whole lot more families about how warped this is.
Organizing isn’t always calling electeds. Sometimes it’s just calling people with a bigger megaphone.
If parents call colleges freaked about their FAFSA data being leaked, schools may have to issue statements — which would reach a whole lot more families about how warped this is.
Organizing isn’t always calling electeds. Sometimes it’s just calling people with a bigger megaphone.
Brings back memories of when #TeamBoulder won the landform championships!!
Happy 5th "Large boulder the size of a small boulder" anniversary! #Geology ⚒️
January 27, 2025 at 3:33 PM
Brings back memories of when #TeamBoulder won the landform championships!!
Reposted by Lina Polvi Sjöberg
Happy large-boulder-the-size-of-a-small-boulder day to those that celebrate ⚒️
January 27, 2025 at 3:16 PM
Happy large-boulder-the-size-of-a-small-boulder day to those that celebrate ⚒️
New study on river ice! Phd student Tuure Takala led this study where we used video-based surface velocimetry analyses (STIV) to examine flow velocities during freeze-up & break-up… interesting effects of partial river ice!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Surface flow and ice rafting velocities during freezing and thawing periods in Nordic rivers
In the present climate, almost all high-latitude rivers in northern regions freeze every winter. In the future, however, climate change may cause shif…
www.sciencedirect.com
December 6, 2024 at 7:17 AM
New study on river ice! Phd student Tuure Takala led this study where we used video-based surface velocimetry analyses (STIV) to examine flow velocities during freeze-up & break-up… interesting effects of partial river ice!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Lina Polvi Sjöberg
Looking for people to follow? Find here a directory of almost 6500 starter packs & growing. Very useful, do share! blueskydirectory.com/starter-pack...
All - Bluesky Directory
A curated collection of all things relating to the Blue Sky social media platform.
blueskydirectory.com
November 12, 2024 at 7:29 AM
Looking for people to follow? Find here a directory of almost 6500 starter packs & growing. Very useful, do share! blueskydirectory.com/starter-pack...
Re-posting to encourage everyone to reply to this to be added yourself & suggest other — early & senior career, from the northern hemisphere, global south, East & West— fluvial researchers! I def don’t know all the fluvial researchers out there (or who’s on bluesky yet). There’s room for >100 more 😊
I started a ‘fluvial geomorphology & related river science’ starter pack for those of you joining us at Bluesky &and those wanting to build the community! Let me know if you want to be added— I’m sure I’ve missed lots of people.
go.bsky.app/S5RPXHk
go.bsky.app/S5RPXHk
November 13, 2024 at 6:10 AM
Re-posting to encourage everyone to reply to this to be added yourself & suggest other — early & senior career, from the northern hemisphere, global south, East & West— fluvial researchers! I def don’t know all the fluvial researchers out there (or who’s on bluesky yet). There’s room for >100 more 😊
Time to start planning for #EGU25 ! Work on any aspect of riverscape restoration? Submit to session GM10.2. Deadline is Jan 15th but never too early! Early career scientists can apply for support if submit by Dec 2nd.
November 12, 2024 at 3:16 PM
So exciting to see Bluesky taking off literally overnight— I’ve missed the academic, science, river social media community! To celebrate here are 3 diverse stream/river pics from my morning commute. Any fluvial geomorphology in anyone else’s commute?
November 12, 2024 at 9:35 AM
So exciting to see Bluesky taking off literally overnight— I’ve missed the academic, science, river social media community! To celebrate here are 3 diverse stream/river pics from my morning commute. Any fluvial geomorphology in anyone else’s commute?
The darkness is still expanding here at #64 N…
November 11, 2024 at 7:32 PM
The darkness is still expanding here at #64 N…
#fluvialgeomorphology #fluvial #geomorphology #rivers #streams #sediment #water #biogeomorphology #restoration
I started a ‘fluvial geomorphology & related river science’ starter pack for those of you joining us at Bluesky &and those wanting to build the community! Let me know if you want to be added— I’m sure I’ve missed lots of people.
go.bsky.app/S5RPXHk
go.bsky.app/S5RPXHk
November 11, 2024 at 4:52 PM
I started a ‘fluvial geomorphology & related river science’ starter pack for those of you joining us at Bluesky &and those wanting to build the community! Let me know if you want to be added— I’m sure I’ve missed lots of people.
go.bsky.app/S5RPXHk
go.bsky.app/S5RPXHk
November 11, 2024 at 4:49 PM
I started a ‘fluvial geomorphology & related river science’ starter pack for those of you joining us at Bluesky &and those wanting to build the community! Let me know if you want to be added— I’m sure I’ve missed lots of people.
go.bsky.app/S5RPXHk
go.bsky.app/S5RPXHk
Reposted by Lina Polvi Sjöberg
Left the other place run by Trump's buddy? Here's a starter pack of freshwater scientists to get you started. Also, if you're a freshwater scientist and want to be added, let me know. Still space available.
go.bsky.app/K5ubDhb
go.bsky.app/K5ubDhb
November 11, 2024 at 12:24 AM
Left the other place run by Trump's buddy? Here's a starter pack of freshwater scientists to get you started. Also, if you're a freshwater scientist and want to be added, let me know. Still space available.
go.bsky.app/K5ubDhb
go.bsky.app/K5ubDhb