Jay Lund
@jrlund.bsky.social
UC Davis professor emeritus of Civil and Environmental Engineering, Geography, and other things. Water, water, and sailing. https://faculty.engineering.ucdavis.edu/lund/
Democracy, public education, and science benefits believers and non-believers alike.
Democracy, public education, and science benefits believers and non-believers alike.
Manhole cover painting as a form of public art and civic pride.
www.ktiv.com/2025/11/16/m...
www.ktiv.com/2025/11/16/m...
Murals spread like wildflowers across the streets of Sac City
Bradshaw’s idea led to the creation of the “Our Town is Cooler Than Yours” art contest.
www.ktiv.com
November 27, 2025 at 12:27 AM
Manhole cover painting as a form of public art and civic pride.
www.ktiv.com/2025/11/16/m...
www.ktiv.com/2025/11/16/m...
Reposted by Jay Lund
Announcing the International Fish Passage Conference 2026
Announcing the International Fish Passage Conference 2026
By Nann A. Fangue Scott River, CA. Nature-Like Fishway constructed in 2025 by the Yurok Tribe. Photo credit CDFW. UC Davis will host the International Fish Passage Conference on May 4-8, 2026. Please join us for this opportunity to engage with fish passage practitioners working across academia, government, utilities, consultancy, and other professional organizations while enjoying the beautiful springtime of Davis and the greater Sacramento region.
californiawaterblog.com
November 23, 2025 at 3:53 PM
Announcing the International Fish Passage Conference 2026
Reposted by Jay Lund
An appropriately wet morning in the Netherlands for the anniversary of the 1421 St Elizabeth’s Flood, which flooded parts of Holland and Zeeland — some of which are still under water today.
These panel paintings from 70 years or so later depict the flooded villages and polders around Dordrecht.
These panel paintings from 70 years or so later depict the flooded villages and polders around Dordrecht.
November 19, 2025 at 10:49 AM
An appropriately wet morning in the Netherlands for the anniversary of the 1421 St Elizabeth’s Flood, which flooded parts of Holland and Zeeland — some of which are still under water today.
These panel paintings from 70 years or so later depict the flooded villages and polders around Dordrecht.
These panel paintings from 70 years or so later depict the flooded villages and polders around Dordrecht.
Reposted by Jay Lund
happy World Toilet Day to all who celebrate.
November 19, 2025 at 1:21 PM
happy World Toilet Day to all who celebrate.
Lectures on the physics and chemistry of San Francisco Bay sediments. Ray Krone 1991
californiawaterblog.com/2025/11/16/p...
californiawaterblog.com/2025/11/16/p...
Physics and Chemistry of San Francisco Bay Sediments – Lectures by Professor Ray B. Krone, 1991
By Jay Lund, Jamie Anderson, William Fleenor, and Fabián A. Bombardelli Ray Krone (left) and fellow UC Davis professors Ian King (middle), Gerald T. Orlob (right), and George Tchobanoglous (not sho…
californiawaterblog.com
November 16, 2025 at 9:31 PM
Lectures on the physics and chemistry of San Francisco Bay sediments. Ray Krone 1991
californiawaterblog.com/2025/11/16/p...
californiawaterblog.com/2025/11/16/p...
Santa Clara Valley Water ponders options and chooses directions to improve reliability despite decreasing water use.
www.mercurynews.com/2025/11/14/w...
www.mercurynews.com/2025/11/14/w...
Water district picks five projects totaling $3.9 billion to boost water supplies by 2050
Reservoirs, groundwater banking, recycled water aim to reduce shortages in severe droughts
www.mercurynews.com
November 16, 2025 at 9:00 PM
Santa Clara Valley Water ponders options and chooses directions to improve reliability despite decreasing water use.
www.mercurynews.com/2025/11/14/w...
www.mercurynews.com/2025/11/14/w...
A wonderful 1999 retirement interview of UC Davis professor Ray Krone on the history of Engineering and Civil and Environmental Engineering at UC Davis.
video.ucdavis.edu/media/Ray+Kr...
video.ucdavis.edu/media/Ray+Kr...
Ray Krone
Name: Ray B. Krone Interviewer: Constant C. Delwiche Date Interviewed: 12/1/1999 Date Appointed: 1965 Date Retired: 1990 Department: Civil Engineering In this conversation , Emeritus Professor R...
video.ucdavis.edu
November 16, 2025 at 3:35 AM
A wonderful 1999 retirement interview of UC Davis professor Ray Krone on the history of Engineering and Civil and Environmental Engineering at UC Davis.
video.ucdavis.edu/media/Ray+Kr...
video.ucdavis.edu/media/Ray+Kr...
A new National Academies report is out - Review of the Long-Term Operations of the Central Valley Project and the State Water Project nap.nationalacademies.org/catalog/2913...
Review of the Long-Term Operations of the Central Valley Project and the State Water Project
Read online, download a free PDF, or order a copy in print.
nap.nationalacademies.org
November 10, 2025 at 5:45 PM
A new National Academies report is out - Review of the Long-Term Operations of the Central Valley Project and the State Water Project nap.nationalacademies.org/catalog/2913...
Faculty meeting?
California water meeting?
Recent meeting of Congress?
California water meeting?
Recent meeting of Congress?
As a retired academic I’m allowed to say that this public art in Leuven sums up how I feel about the prospect of a committee meeting!
November 8, 2025 at 3:53 PM
Faculty meeting?
California water meeting?
Recent meeting of Congress?
California water meeting?
Recent meeting of Congress?
Faculty meeting
As a retired academic I’m allowed to say that this public art in Leuven sums up how I feel about the prospect of a committee meeting!
November 8, 2025 at 3:42 PM
Faculty meeting
Reposted by Jay Lund
Saw some incredibly effective climate change messaging today @sammyroth.bsky.social
Kingston, NY waterfront
TIL that the Hudson River is tidal from the Atlantic Ocean to Albany. Storm surge threatens more than coastal areas
Kingston, NY waterfront
TIL that the Hudson River is tidal from the Atlantic Ocean to Albany. Storm surge threatens more than coastal areas
October 25, 2025 at 12:28 AM
Saw some incredibly effective climate change messaging today @sammyroth.bsky.social
Kingston, NY waterfront
TIL that the Hudson River is tidal from the Atlantic Ocean to Albany. Storm surge threatens more than coastal areas
Kingston, NY waterfront
TIL that the Hudson River is tidal from the Atlantic Ocean to Albany. Storm surge threatens more than coastal areas
Reposted by Jay Lund
that democratic dignity which, on all hands, radiates without end from God
October 25, 2025 at 4:47 PM
that democratic dignity which, on all hands, radiates without end from God
Foucault observed that a lot of life is about trying to repress the little fascist in each one of us. When people start describing politics as a fight, they are unleashing their inner fascist. Fighting is for fascists.
www.nytimes.com/2025/10/23/o...
www.nytimes.com/2025/10/23/o...
Opinion | The Rot Creeping Into Our Minds
www.nytimes.com
October 24, 2025 at 12:22 AM
Foucault observed that a lot of life is about trying to repress the little fascist in each one of us. When people start describing politics as a fight, they are unleashing their inner fascist. Fighting is for fascists.
www.nytimes.com/2025/10/23/o...
www.nytimes.com/2025/10/23/o...
A story of true (not rhetorical) resilience and robustness for part of a native ecosystem. "There will always be an ecosystem," as Dr. Moyle sometimes says. This story has some lessons for us.
californiawaterblog.com/2025/10/19/r...
californiawaterblog.com/2025/10/19/r...
Resilient California Fishes: Sacramento Sucker
By Peter Moyle and Tom Taylor ____________________ The fresh waters of California support a diverse native fish fauna, 130 taxa by our count (Leidy and Moyle 2021). At least 56 of these taxa are on…
californiawaterblog.com
October 20, 2025 at 6:08 PM
A story of true (not rhetorical) resilience and robustness for part of a native ecosystem. "There will always be an ecosystem," as Dr. Moyle sometimes says. This story has some lessons for us.
californiawaterblog.com/2025/10/19/r...
californiawaterblog.com/2025/10/19/r...
Teacher unclear on the concept.
I love how this comedy sketch starts out being about real teacher concerns and then morphs into something very different. youtu.be/8AeCo3AD1cM?...
Confused Teacher Crashes Out Over His Job | Mitchell and Webb Are Not Helping | Channel 4 Comedy
YouTube video by Channel 4 Comedy
youtu.be
October 18, 2025 at 1:19 PM
Teacher unclear on the concept.
Two-Decade Hydropower Plunge at Big Colorado River Dams www.circleofblue.org/2025/infogra...
Two-Decade Hydropower Plunge at Big Colorado River Dams
Lakes Mead and Powell, the largest reservoirs on the Colorado River, do not just store water. Their dams, Hoover and Glen Canyon, also generate electricity. This hydropower drives irrigation pumps and...
www.circleofblue.org
October 16, 2025 at 1:02 PM
Two-Decade Hydropower Plunge at Big Colorado River Dams www.circleofblue.org/2025/infogra...
Reposted by Jay Lund
Yolo Bypass tour during #ISRS2025 Carson Jeffres of @ucdavis.bsky.social & Jacob Katz of @caltrout.bsky.social explain how field behind them is great habitat for juvenile chinook…just add water & turbocharged food web produces “floodplain fatties” as in poster @riversociety.bsky.social #WaterYear
October 14, 2025 at 8:42 PM
Yolo Bypass tour during #ISRS2025 Carson Jeffres of @ucdavis.bsky.social & Jacob Katz of @caltrout.bsky.social explain how field behind them is great habitat for juvenile chinook…just add water & turbocharged food web produces “floodplain fatties” as in poster @riversociety.bsky.social #WaterYear
Reposted by Jay Lund
Grid scale batteries are changing our electricity system. Excellent new visual story on batteries in FT today shows just how far this technology has evolved.
Fasten your seatbelts, this is just the beginning.
ig.ft.com/mega-batteri...
Fasten your seatbelts, this is just the beginning.
ig.ft.com/mega-batteri...
October 13, 2025 at 10:26 AM
Grid scale batteries are changing our electricity system. Excellent new visual story on batteries in FT today shows just how far this technology has evolved.
Fasten your seatbelts, this is just the beginning.
ig.ft.com/mega-batteri...
Fasten your seatbelts, this is just the beginning.
ig.ft.com/mega-batteri...
Environmental Flows: Its not just the water - its the variability!
californiawaterblog.com/2025/10/12/r...
californiawaterblog.com/2025/10/12/r...
Representing interannual variability for environmental flow operations: the functional flow regime
By Lindsay Murdoch, Sarah Yarnell, and Jay Lund California’s local communities and native ecosystems alike have adapted to cycles of flood, drought, and a healthy portion of everything in between. …
californiawaterblog.com
October 12, 2025 at 5:32 PM
Environmental Flows: Its not just the water - its the variability!
californiawaterblog.com/2025/10/12/r...
californiawaterblog.com/2025/10/12/r...
Happy New Water Year 2026! May your water year be as wet as you like when you'd like it.
californiawaterblog.com/2025/09/28/h...
californiawaterblog.com/2025/09/28/h...
Happy New Water Year 2026! – following 2025’s Normal and Extreme Hydrology
By Jay Lund October 1 marks the beginning of California’s new Water Year (WY). Water years here run from October 1 until September 30 of the next calendar year and are named for the calendar year o…
californiawaterblog.com
September 28, 2025 at 7:55 PM
Happy New Water Year 2026! May your water year be as wet as you like when you'd like it.
californiawaterblog.com/2025/09/28/h...
californiawaterblog.com/2025/09/28/h...
Making Florida More Flood Resistant Is Forcing Hard Choices for Homeowners www.nytimes.com/2025/09/27/u...
Making Florida More Flood Resistant Is Forcing Hard Choices for Homeowners
www.nytimes.com
September 27, 2025 at 2:02 PM
Making Florida More Flood Resistant Is Forcing Hard Choices for Homeowners www.nytimes.com/2025/09/27/u...
Reposted by Jay Lund
Results so stunningly clear they inspired this classic xkcd (xkcd.com/2400/):
September 1, 2025 at 7:32 PM
Results so stunningly clear they inspired this classic xkcd (xkcd.com/2400/):
A profound and inspiring post.
Being the Lorax
By Andrew L. Rypel “Way back in the days when the grass was still green and the pond was still wet and the clouds were still clean, and the song of the Swomee-Swans rang out in space...one morning, I came to this glorious place. And I first saw the trees! The Truffula Trees! The…
By Andrew L. Rypel “Way back in the days when the grass was still green and the pond was still wet and the clouds were still clean, and the song of the Swomee-Swans rang out in space...one morning, I came to this glorious place. And I first saw the trees! The Truffula Trees! The…
Being the Lorax
By Andrew L. Rypel “Way back in the days when the grass was still green and the pond was still wet and the clouds were still clean, and the song of the Swomee-Swans rang out in space...one morning, I came to this glorious place. And I first saw the trees! The Truffula Trees! The bright-colored tufts of the Truffula Trees! Mile after mile in the fresh morning breeze.” …
californiawaterblog.com
August 31, 2025 at 2:58 PM
A profound and inspiring post.
There is a common sentiment that California should have more surface reservoir capacity. But few seem willing to pay enough for such capacity, even with healthy (or unhealthy) state subsidies.
Plans for the largest new Bay Area reservoir since 1998 collapse amid cost overruns, delays www.mercurynews.com/2025/08/26/p...
Plans for the largest new Bay Area reservoir since 1998 collapse amid cost overruns, delays
Santa Clara Valley Water District halts work on $3.2 billion Pacheco Reservoir after already spending $100 million
www.mercurynews.com
August 27, 2025 at 9:46 PM
There is a common sentiment that California should have more surface reservoir capacity. But few seem willing to pay enough for such capacity, even with healthy (or unhealthy) state subsidies.
Excellent on gerrymandering.
I'm pleased to introduce a full set of Congressional *and* legislative report cards, courtesy of the Princeton Gerrymandering Project. An enormous amount of work, the culmination of several years of development. Check it out!
samwang.substack.com/p/redistrict...
samwang.substack.com/p/redistrict...
Redistricting plans in 50 states, graded (correctly)
...but first, we have to kill the proportionality myth.
samwang.substack.com
August 26, 2025 at 1:10 PM
Excellent on gerrymandering.