Monthly Archives: January 2021

February 1: Is California Still Heading for a Multi-Year Drought?

by Jay Lund, Peter Moyle, and Andrew Rypel This updates a post from December on the likelihood of California entering a second dry year. Normally, a second dry year brings drought operations for California’s overall water system operations. Today, it … Continue reading

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A Swiss Cheese Model for Fish Conservation in California

by Andrew L. Rypel, Peter B. Moyle, and Jay Lund We read with great interest Nicholas Chistakis’s piece outlining a “Swiss Cheese Model For Combating Covid-19” in the Wall Street Journal. Christakis presents a model for considering the individual steps … Continue reading

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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

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2021: Is this the year that wild delta smelt become extinct?

by Peter Moyle, Karrigan Börk, John Durand, T-C Hung, and Andrew L. Rypel 2020 was a bad year for delta smelt. No smelt were found in the standard fish sampling programs (fall midwater trawl, summer townet survey). Surveys designed specifically … Continue reading

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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

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