Author Archives: UC Davis Center for Watershed Sciences

Managing Domestic Well Impacts from Overdraft and Balancing Stakeholder Interests

by Robert M. Gailey and Jay R. Lund The historic drought in California from 2012 through 2016 brought unprecedented groundwater level declines and reports of dry domestic supply wells.  This was particularly true in the Central Valley. New research on … Continue reading

Posted in Groundwater | Tagged , | 2 Comments

Habitat Restoration for Chinook Salmon in Putah Creek: A Success Story

by Eric Chapman, Emily Jacinto, and Peter Moyle 2017 was another good year for Chinook salmon in Putah Creek. Putah Creek is just a small stream flowing through Yolo and Solano counties, fed by releases of water from Lake Berryessa. … Continue reading

Posted in Biology, Fish, Restoration, Salmon | Tagged , , , | Leave a comment

Improving Urban Water Conservation in California

by Erik Porse The relatively dry 2017-18 winter in California resurfaced recent memories of drought conservation mandates. From 2013-16, urban water utilities complied with voluntary, then mandatory, water use limits as part of Executive Order B-37-16. Urban water utilities met … Continue reading

Posted in California Water, Conservation, Drought, urban water | Tagged | 2 Comments

Resurrecting the Delta for Desirable Fishes

by Peter Moyle, Carson Jeffres, John Durand The Delta is described in many ways.  When extolling the Delta as a tourist destination, it is described as a place of bucolic beauty; islands of productive farmland are threaded by meandering channels of … Continue reading

Posted in Delta, Fish, Restoration, Sacramento-San Joaquin Delta, Uncategorized | Tagged , , | 9 Comments

Modeling, Measuring, and Comparing Crop Evapotranspiration in the Delta

by Jesse Jankowski Crop evapotranspiration (ET) is the biggest managed loss of water in California, accounting for roughly 80% of human net water use, and includes crop water applications transpired from plants and evaporated from soil. Methods to estimate ET … Continue reading

Posted in Agriculture, California Water, Delta, Planning and Management, Tools | Tagged , | 1 Comment

Reality Check of California Water Fix Model results in a Critical Flow Year

by William Fleenor In 2008 a group from the Center for Watershed Sciences (including this author), joined by an economist from the Public Policy Institute, published findings that suggested that an alternative conveyance for Sacramento River water might improve ecological … Continue reading

Posted in California Water, Delta | Tagged , | 3 Comments

Groundwater Recovery in California – Still Behind the Curve

by Thomas Harter and Bill Brewster California has a unique and highly variable climate in which drought reoccurs periodically. California began this century in a dry period from 1999 to 2005, and experienced droughts from 2007 to 2009, and 2012 … Continue reading

Posted in California Water, Groundwater | Tagged , | 2 Comments

Brown is the new gold: Water strategy is starting to pay dividends

by Nan Frobish Governor Brown has unveiled a sweeping new strategy, “Brown is the New Gold,” to simultaneously make California more robust to drought, secure private water rights, buffer California’s growers against disastrous losses from a looming national trade war, … Continue reading

Posted in April Fools' Day | 7 Comments

California’s Water Data Problems are Symptoms of Inchoate Science and Technical Activities

“The truth is lost when there is too much contention about it.” – Publius Syrus (43 BC) by Jay Lund In 2016, California’s legislature passed AB 1755, the Open and Transparent Water Data Act, requiring that State agencies provide water … Continue reading

Posted in California Water, Planning and Management, Tools | Tagged | 2 Comments

Is Ecosystem-Based Management Legal for the Sacramento-San Joaquin Delta?

by Brian Gray (PPIC Water Policy Center), William Stelle (former NOAA Fisheries West Coast Administrator), and Leon Szeptycki (Stanford University, Water in the West)* Introduction In a recent three-part series posted on this website, a group of independent experts (including one … Continue reading

Posted in California Water, Delta, Sacramento-San Joaquin Delta | Tagged , | 4 Comments