Author Archives: UC Davis Center for Watershed Sciences

Habitat Preferences of various Delta species

Like fish, the different human professions involved in the Delta have different habitat preferences: Lawyers: high turbidity and fear, complex egosystems, either high and cynical levels of expectation, abundant funds Engineers: high clarity, data-rich nutrient sources, high expectation concentrations, abundant … Continue reading

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California WaterFix and Delta Smelt

by Peter Moyle and James Hobbs The delta smelt is on a trajectory towards extinction in the wild.  Heading into 2017, the spawning adult population was at an all-time low although this past wet winter has apparently seen a small … Continue reading

Posted in California Water, Conservation, Delta, Fish, Planning and Management, Restoration, Sacramento-San Joaquin Delta, Sustainability | Tagged , | 13 Comments

Small, self-sufficient water systems continue to battle a hidden drought

by Amanda Fencl and Meghan Klasic California’s drought appears over, at least above ground. As of April 2017, reservoirs were around 2 million acre feet above normal with record breaking snowpack . This is great news for the 75% of Californians that … Continue reading

Posted in California Water, Drought, Stressors, Sustainability, Water Supply and Wastewater | Tagged | 6 Comments

Fish, flows, and 5937 – legal challenges on the Santa Maria River

by Karrigan Bork, JD, PhD Driving down the 101, you cross a half-mile long bridge over the Santa Maria River into the city of Santa Maria, California. It’s a large bridge, with big levees to constrain the river on either … Continue reading

Posted in California Water, Fish, Groundwater, Planning and Management, Sustainability | Tagged | 3 Comments

Water wasted to the sea?

by James E. Cloern, Jane Kay, Wim Kimmerer, Jeffrey Mount, Peter B. Moyle, and Anke Mueller-Solger This article originally appeared in the journal San Francisco Estuary and Watershed Science.   If we farmed the Central Valley or managed water supplies for … Continue reading

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A simplified method to classify streams and improve California’s water management

by Belize Lane, Sam Sandoval, and Sarah Yarnell Alterations to the natural flow regime for human water management activities have degraded river ecosystems worldwide. Such alterations are particularly destructive in regions with highly variable climates like California, where native riverine … Continue reading

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

Reflections on Cadillac Desert

by Jay Lund In 1986, when Mark Reisner published his book Cadillac Desert, I had just begun professing on water management. The book went “viral,” before the word viral had its present-day internet-intoxicated meaning.  The book offered a compelling revisionist … Continue reading

Posted in California Water, Climate Change, education, Planning and Management, Stressors, Sustainability, Water Supply and Wastewater | Tagged | 11 Comments

San Joaquin Valley Water Supplies – Unavoidable Variability and Uncertainty

by Brad Arnold1, Alvar Escriva-Bou2, and Jay Lund1 1 UC Davis Center for Watershed Sciences 2 Public Policy Institute of California Passage of the Sustainable Groundwater Management Act (SGMA) and the recent drought have brought attention to chronic shortages of … Continue reading

Posted in California Water, Planning and Management, San Joaquin River, Water Supply and Wastewater, Water System Modeling | Tagged | 7 Comments

Can Sacramento Valley reservoirs adapt to flooding with a warmer climate?

  by Jay Lund and Ann Willis Much has been written on potential effects and adaptations for California’s water supply from climate warming, particularly from changes in snowpack accumulation and melting, sea level rise, and possible overall drying or wetting … Continue reading

Posted in California Water, Climate Change, Floodplains | Tagged , , , , , , , | 2 Comments

Irrigation Management in the Western States, seen from overseas

by Fandi P. Nurzaman The transformation of the western United States by irrigation offers hope for developing countries looking for models to improve their irrigation system for food security or agricultural prosperity. The transformation of the American West from barren … Continue reading

Posted in Around the World, California Water, Planning and Management | Tagged | 2 Comments