Category Archives: Uncategorized

Sometimes, studying the variation is the interesting thing

By Andrew L. Rypel As scientists, we’re trained to key in on ‘response variables’. In my case, fisheries scientists often examine how fish physiology, populations, communities or whole ecosystems react to various environmental drivers or human alteration. Unfortunately, variation in … Continue reading

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The Big California Drought Stories of 2021

by Jay Lund Happy New Water Year!  October 1, 2021 is the beginning of the 2022 water year in California, the traditional beginning of California’s “wet season”, such as it will be. Although there are many fine and interesting stories … Continue reading

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Developing tools to model impaired streamflow in streams throughout California

by Jeanette Howard, Kirk Klausmeyer, Laura Read, and Julie Zimmerman Droughts are extreme, but not necessarily extreme events — at least not in the way we humans usually experience events as discrete, episodic occurrences. Droughts are continuous and exhausting; they … Continue reading

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Risk Rating 2.0: A first look at FEMA’s new flood insurance system

By Ryan Miller, Peter Hansen, and Nicholas Pinter Risk Rating 2.0 has been called the Federal Emergency Management Agency’s (FEMA)’s most significant reform in 50 years.  Roughly 77% of customers of the National Flood Insurance Program (NFIP) nationwide will see … Continue reading

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Could California weather a mega-drought?

By Jay Lund “Mega-drought” has become a frightful “thing” in public and media discussions.  In the past 1,200 years, California had two droughts lasting 120-200 years, “megadroughts” by any standard. Could the state’s water resources continue to supply enough water … Continue reading

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Lessons from Three Decades of Evolution of Cropland use in the Central Valley

by José M. Rodríguez-Flores, Spencer A. Cole, Alexander Guzman, Josué Medellín-Azuara, Jay R. Lund, Daniel A. Sumner California’s Central Valley is the source of more than $30 billion of farm value. It produces more milk than any state outside California, … Continue reading

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Dammed hot: California’s regulated streams fail cold-water ecosystems

by Ann Willis, Ryan Peek, and Andrew L. Rypel Given the current drought, it’s no surprise that California’s dams are struggling to provide cool water habitats to support native freshwater ecosystems. But what if they were never able to support … Continue reading

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2021 Drought in California – in one page

by Jay Lund Droughts and this drought in California California has more hydrologic variability than any state in the US, meaning that we have more drought and flood years per average year than any other state.  This is a problem, … Continue reading

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Living with non-native fishes in California requires using the right words

by Peter Moyle Everywhere you go in California, people live in landscapes where non-native species are conspicuous:  European grasses turning the hills golden, earthworms tilling our garden soil, exotic trees providing shade, bullfrogs jumping into backyard ponds, starlings making tight … Continue reading

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The California Water Model: Resilience through Failure

by Nicholas Pinter, Jay Lund, Peter Moyle This is a slightly-edited re-posting from May 5, 2019. A review of 170 years of water-related successes in California suggests that most successes can be traced directly to past mistakes.  California’s highly variable … Continue reading

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