California Water Related

Federal Disaster Assistance to California

California WaterBlog - 13 hours 53 min ago
By Ryan Miller and Nicholas Pinter Following a major flood or other natural disaster, the US federal government provides disaster assistance to individuals and local and state jurisdictions to help them recover. Over the past ~20 years, these federal payments have … Continue reading →

Watershed Outreach – Summer 2022

California WaterBlog - September 18, 2022 - 7:01am
With summer wrapping up and a new school year upon us, we decided it was a good time to reflect on outreach done by researchers at the Center for Watershed Sciences (CWS) at UC Davis. Some of the outreach was … Continue reading →

Science Happens

California WaterBlog - September 11, 2022 - 6:56am
By Andrew L. Rypel The famous expression ‘Life Happens!’ has certainly been around awhile. It’s reserved as a sort of colloquialism, describing how someone’s life or life plans are completely upended by circumstances, usually because of seemingly random events. This … Continue reading →

You Can’t Always Get What You Want – A Mick Jagger Theory of Drought Management

California WaterBlog - August 28, 2022 - 6:19am
by Jay Lund [This is a reposting of a CaliforniaWaterBlog.com post from February 2016, near the end of the previous drought.  For human uses, conditions seem somewhat similar to this point in the previous drought, so this perspective might be … Continue reading →

The vortex of executive activity

California WaterBlog - August 14, 2022 - 6:00am
by Jay Lund The graphic below seems to apply to any bureaucracy, with larger bureaucracies showing this tendency more strongly.  In this vortex conception of management, one can often make more progress from the periphery than from the center of … Continue reading →

Two-way thinking in natural resource management

California WaterBlog - August 7, 2022 - 6:15am
By Andrew L. Rypel “I have more confidence in the ability of institutions to improve their thinking than in the ability of individuals to improve their thinking” ~Daniel Kahneman It is long recognized that there are two dominant modes of … Continue reading →

Dissecting the use of water management plans in California

California WaterBlog - August 7, 2022 - 5:05am
By Nicola Ulibarri California uses plans as a primary tool for managing water throughout the state. Regulations like the Urban Water Management Planning Act of 1983, Regional Water Management Planning Act of 2002, Water Conservation Act of 2009, and Sustainable … Continue reading →

The Great Lakes and Invasive Species

California WaterBlog - July 31, 2022 - 6:44am
This week’s CaliforniaWaterBlog post is an excerpt (Box 1) from a recent Delta Independent Science Board report on non-native species and the California Delta.  This excerpt summarizes the experience of the Great Lakes, and how its physical and ecological management … Continue reading →

Follow the Water!

California WaterBlog - July 24, 2022 - 5:19am
by Jay Lund People often have strange ideas about how water works.  Even simple water systems can be confusing.  When water systems become large complex socio-physical-ecological systems serving many users and uses, opportunities for confusion become extreme, surpassing comprehension by … Continue reading →

Saving Clear Lake’s Endangered Chi

California WaterBlog - July 17, 2022 - 8:53am
By Peter B. Moyle and Thomas L. Taylor ‘Tens of thousands of these fish once ascended streams in Spring. They are of major cultural importance to the Pomo people who harvested them as a valued food source.’ When you read statements … Continue reading →

Unlocking how juvenile Chinook salmon swim in California rivers

California WaterBlog - July 10, 2022 - 6:53am
By Rusty C. Holleman, Nann A. Fangue, Edward S. Gross, Michael J. Thomas, and Andrew L. Rypel Despite years of study and thousands of research projects, some aspects of the biology of Chinook salmon remain altogether mysterious. One enduring question … Continue reading →

Uncertainty in modeling, an Art Gallery

California WaterBlog - June 26, 2022 - 6:06am
Water resource planners regularly rely on computer models to illuminate relationships between human- and natural-systems. Anyone who has tinkered with one of California water supply models knows this is a deeply left-brained exercise. During Winter 2021, as part of Jay Lund’s … Continue reading →

California’s continued drought

California WaterBlog - June 19, 2022 - 6:45am
By Andrew L. Rypel As California’s drought deepens, it is worth checking in on the status of water supplies and what might be in store for the rest of the summer, and beyond. What started with the promise of a … Continue reading →

Considerations for Developing An Environmental Water Right in California

California WaterBlog - June 12, 2022 - 6:00am
By Karrigan Börk, Andrew L. Rypel, Sarah Yarnell, Ann Willis, Peter B. Moyle, Josué Medellín-Azuara, Jay Lund, and Robert Lusardi This week, news emerged of a State Senate plan that would spend upwards of $1.5B to purchase senior water rights … Continue reading →

The Failed Recovery Plan for the Delta and Delta Smelt

California WaterBlog - May 29, 2022 - 7:02am
By Peter Moyle Few native species are as controversial as Delta Smelt. It is a 3-4 inch translucent fish that lives only in the California Delta, where the Sacramento and San Joaquin rivers meet. This place also happens to be … Continue reading →

A conservation bill you’ve never heard of may be the most important in a generation

California WaterBlog - May 22, 2022 - 6:56am
by Andrew L. Rypel This blog is a short introduction to a lesser known federal bill that is one of the most significant pieces of fish and wildlife legislation in decades. In Spring of 2021, Rep. Debbie Dingell (D-Mich.) and … Continue reading →

How engineers see the water glass in California

California WaterBlog - May 15, 2022 - 6:02am
This is another dry year.  How do California’s engineers see a partially-full water glass?  Mostly the same as they did in the original 2012 version of this post, but we’ve added a few more perspectives. by Jay R. Lund Depending … Continue reading →

Five “F”unctions of the Central Valley Floodplain

California WaterBlog - May 8, 2022 - 7:02am
by Francheska Torres, Miranda Tilcock, Alexandra Chu, and Sarah Yarnell The Yolo Bypass is one of two large flood bypasses in California’s Central Valley that are examples of multi-benefit floodplain projects (Figure 1; Serra-Llobet et al., 2022). Originally constructed in the early … Continue reading →

Government Spending on Stormwater Management in California

California WaterBlog - May 1, 2022 - 6:46am
By Erik Porse, Maureen Kerner, Brian Currier, David Babchanik, Danielle Salt, and Julie Mansisidor Stormwater infrastructure in cities is highly visible and serves to mitigate flooding and reduce pollution that reaches local waterbodies. Being so visible, it might be reasonable … Continue reading →

The Putah Creek Fish Kill: Learning from a Local Disaster

California WaterBlog - April 24, 2022 - 6:18am
By Alex Rabidoux, Max Stevenson, Peter B. Moyle, Mackenzie C. Miner, Lauren G. Hitt, Dennis E. Cocherell, Nann A. Fangue, and Andrew L. Rypel Putah Creek is a small stream located in the Central Valley that has been extensively modified … Continue reading →