Revealing the Diversity of Natural Hydrologic Regimes in California with Relevance for Environmental Flows Applications

Lane, Belize; Dahlke, H. E.; Pasternack, G. B.; Sandoval-Solís, Samuel

doi:10.1111/1752-1688.12504

Cited by 45 publications

(50 citation statements)

References 129 publications

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“…The high-magnitude flow analysis naturally raises the question: how would the diversion of the estimated HMF influence the availability of environmental flows? HMFs are important for sediment transport, channel formation and scouring (Fisher 1983, Baron et al 2002, Lane et al 2016, maintaining riparian vegetation (Hupp andOsterkamp 1985, Sparks 1995), facilitating upstream and downstream dispersal of native riparian organisms (Meffe 1984, Moyle andLight 1996), and inducing spawning in native fishes (Baumgartner et al 2014). While diverting flood flows for groundwater recharge could provide potential benefits for flood risk mitigation (Hanak and Lund 2012), it could also impact the availability of environmental flows.…”

Section: Environmental (Instream) Flow Considerationsmentioning

confidence: 99%

Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

Kocis

Dahlke

2017

Environ. Res. Lett.

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116

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Section: Environmental (Instream) Flow Considerationsmentioning

confidence: 99%

Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

Kocis

Dahlke

2017

Environ. Res. Lett.

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116

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“…Lane, Dahlke, and Sandoval‐Solis () recently classified California streams using a similar inductive–deductive approach, classifying according to streamflow data and validating using environmental variables. They partitioned reference condition streams into seven classes defined according to the primary drivers of hydrological variation in streams: snowmelt, rain, groundwater, ephemeral streams, and multiple transitional classes.…”

Section: Discussionmentioning

confidence: 99%

Classification of California streams using combined deductive and inductive approaches: Setting the foundation for analysis of hydrologic alteration

et al. 2017

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Regional classification of streams is an early step in the Ecological Limits of Hydrologic Alteration framework. Many stream classifications are based on an inductive approach using hydrologic data from minimally disturbed basins, but this approach may underrepresent streams from heavily disturbed basins or sparsely gaged arid regions. An alternative is a deductive approach, using watershed climate, land use, and geomorphology to classify streams, but this approach may miss important hydrological characteristics of streams. We classified all stream reaches in California using both approaches. First, we used Bayesian and hierarchical clustering to classify reaches according to watershed characteristics. Streams were clustered into seven classes according to elevation, sedimentary rock, and winter precipitation. Permutation‐based analysis of variance and random forest analyses were used to determine which hydrologic variables best separate streams into their respective classes. Stream typology (i.e., the class that a stream reach is assigned to) is shaped mainly by patterns of high and mean flow behavior within the stream's landscape context. Additionally, random forest was used to determine which hydrologic variables best separate minimally disturbed reference streams from non‐reference streams in each of the seven classes. In contrast to stream typology, deviation from reference conditions is more difficult to detect and is largely defined by changes in low‐flow variables, average daily flow, and duration of flow. Our combined deductive/inductive approach allows us to estimate flow under minimally disturbed conditions based on the deductive analysis and compare to measured flow based on the inductive analysis in order to estimate hydrologic change.

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“…Four hydrologic scenarios characteristic of the mixed snowmelt and rain flow regime typical of Mediterranean‐montane systems were evaluated (Lane, Dahlke, Pasternack, & Sandoval‐Solis, ): unimpaired wet, unimpaired dry, altered wet, and altered dry annual flow regimes (Figure ). Daily streamflow time series for two midelevation gauge stations in the western Sierra Nevada, California, were chosen to represent these archetypal flow regimes under unimpaired (North Yuba River below Goodyears Bar) and altered (New Colgate Powerhouse) conditions (see Section S2.2 for map of gauge locations).…”

Section: Methodsmentioning

confidence: 99%

Integrated analysis of flow, form, and function for river management and design testing

2018

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Revealing the Diversity of Natural Hydrologic Regimes in California with Relevance for Environmental Flows Applications

Cited by 45 publications

References 129 publications

Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

Classification of California streams using combined deductive and inductive approaches: Setting the foundation for analysis of hydrologic alteration

Integrated analysis of flow, form, and function for river management and design testing

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