Author Archives: jaylund

About jaylund

Professor of Civil and Environmental Engineering Director, Center for Watershed Sciences University of California - Davis

Managing Groundwater Overdraft – Combining Crop and Water Decisions (without salinity)

by Yiqing “Gracie” Yao and Jay Lund California’s Central Valley produces much of the nation’s food, including about 40% of the country’s fruits and nuts and has the nation’s second most pumped aquifer system. Its drier southern portion, the San … Continue reading

Posted in Uncategorized | 3 Comments

California’s Sacramento-San Joaquin Delta – a short history of big changes

by Jay Lund Deltas globally adjust with changes and fluctuations in external conditions, internal dynamics, and human management.  This is a short history of big changes to California’s Sacramento-San Joaquin Delta (Delta) in the past and present, and its anticipated … Continue reading

Posted in Uncategorized | 1 Comment

Is California Heading for a Multi-Year Drought?

by Jay Lund Yes, California will have another multi-year drought.  California has immense hydrologic variability, with more droughts and floods per average year than any other part of the country.  California’s water users, managers, and regulators should always be prepared … Continue reading

Posted in Uncategorized | 6 Comments

Functional Flows Can Improve Environmental Water Management in California

By Ted Grantham, Jeanette Howard, Belize Lane, Rob Lusardi, Sam Sandoval-Solis, Eric Stein, Sarah Yarnell and Julie Zimmerman Over the past three years, a team of scientists from universities, NGOs, and state agencies across California have been working to provide … Continue reading

Posted in Uncategorized | 4 Comments

Planning for a shorter rainy season and more frequent extreme storms in California

By Claire Kouba and J. Pablo Ortiz Partida California’s hydrologic future is muddled by a fundamental uncertainty: will the state get wetter or drier? Climate models disagree on this question, but provide insights on other important water management questions. The … Continue reading

Posted in Uncategorized | 2 Comments

The Freezer of Horrors

by Miranda Bell-Tilcock, Jamie Sweeney, and Malte Willmes Down the dark corridors of the Watershed Sciences building are freezers of dead fish. Frozen Chinook Salmon carcasses and their dissected eyes and muscles in neat vials are stacked next to White … Continue reading

Posted in Uncategorized | Leave a comment

Happy 2021! Here’s to a New Water Year!

by Jay Lund 2020 was terrible, and as a water year (WY), October 2019 – September 2020, it is over.  A dry winter (drier than 2014-2015 in Sac. Valley), COVID-19, deep recession and unemployment, wildfires, racial violence and unrest, extreme … Continue reading

Posted in Uncategorized | Leave a comment

Old Readings on California Water

by Jay Lund Today’s water struggles have deep roots. In our shared summer confinement, we hopefully have some time for some deeper reading on California water.  Here is a small collection of older writings on California water, the youngest of … Continue reading

Posted in Uncategorized | 5 Comments

SGMA and the Human Right to Water: How do submitted Groundwater Sustainability Plans address drinking water?

by Kristin Dobbin, Darcy Bostic, Michael Kuo and Jessica Mendoza In 2012 California passed the Human Right to Water (AB 685) which declares all Californians have the right to safe, clean, affordable and accessible drinking water. Two years later during … Continue reading

Posted in Uncategorized | Leave a comment

Drought and the Sacramento–San Joaquin Delta, 2012–2016: Environmental Review and Lessons

by John R. Durand, Fabian Bombardelli, William E. Fleenor, Yumiko Henneberry, Jon Herman, Carson Jeffres, Michelle Leinfelder-Miles, Jay R. Lund, Robert Lusardi, Amber D. Manfree, Josué Medellín-Azuara, Brett Milligan, and Peter Moyle Droughts are common in California. The drought of … Continue reading

Posted in Uncategorized | 3 Comments