Analysis of 1997–2008 groundwater level changes in the upper Deschutes Basin, Central Oregon

Gannett, Marshall W.; Lite, Kenneth E.

doi:10.3133/sir20135092

Cited by 4 publications

(10 citation statements)

References 9 publications

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“…Climate driven reductions in groundwater recharge in recent decades manifest as a decrease in discharge of most spring-fed streams. For example, mean annual discharge of Fall River, an entirely spring-fed stream, decreased from 150 ft 3 /s in the 1970s to 110 ft 3 /s in the 2000s, a decrease of 27 percent (Gannett and Lite, 2013). Decreases in recharge from precipitation and discharge to spring-fed streams in the upper Deschutes Basin are consistent with decreased discharge of groundwater-dominated streams over the past 50 years elsewhere in the Cascade Range described by Mayer and Naman (2011).…”

Section: Temporal Variations In Head and Dischargesupporting

confidence: 57%

“…Although the 2004 model has been used to evaluate the spatial variability in response of the groundwater system to projected future climate (Waibel and others, 2013) and the influence of climate on observed water-level declines (Gannett and Lite, 2013), the limitations of the coarse scale were still present. In addition, the 2004 model simulates the groundwater component of streamflow and not other components that are important to the overall response.…”

Section: Background Of Water-resource Issues and Study Objectivesmentioning

confidence: 99%

“…The relative contributions of these various stresses in different areas of the basin between 1997 and 2008 were described by Gannett and Lite (2013).…”

Section: Temporal Variations In Head and Dischargementioning

confidence: 99%

“…Gannett and Lite (2013) used information on reduction in canal leakage due to piping from the mid-1990s through 2008 to simulate the effects of canal piping on the groundwater system using the 2004 model. Loss rates to individual cells were reduced with time as piping efforts for associated canal segments were completed.…”

Section: Canal Leakagementioning

confidence: 99%

“…Studies have also demonstrated that warming and consequent changes in snowpack will affect the groundwater hydrology (Tague and others, 2008;Waibel and others, 2013). Groundwater level declines measured in wells in the basin since the mid-1990s have been attributed in part to climate-driven reductions in groundwater recharge, in addition to groundwater pumping and canal piping (Gannett and Lite, 2013).…”

Section: Introduction Study Areamentioning

confidence: 99%

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Simulation of groundwater and surface-water flow in the upper Deschutes Basin, Oregon

Gannett¹,

Lite²,

Risley³

et al. 2017

Scientific Investigations Report

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Section: Temporal Variations In Head and Dischargesupporting

confidence: 57%

Section: Background Of Water-resource Issues and Study Objectivesmentioning

confidence: 99%

“…The relative contributions of these various stresses in different areas of the basin between 1997 and 2008 were described by Gannett and Lite (2013).…”

Section: Temporal Variations In Head and Dischargementioning

confidence: 99%

Section: Canal Leakagementioning

confidence: 99%

Section: Introduction Study Areamentioning

confidence: 99%

See 3 more Smart Citations

Simulation of groundwater and surface-water flow in the upper Deschutes Basin, Oregon

Gannett¹,

Lite²,

Risley³

et al. 2017

Scientific Investigations Report

Self Cite

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Groundwater, biodiversity, and the role of flow system scale

Aldous

Gannett

2021

Ecohydrology

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Groundwater-dependent ecosystems and species (GDEs) are found throughout watersheds at locations of groundwater discharge, yet not all GDEs are the same, nor are the groundwater systems supporting them. Groundwater moves along a variety of flow paths of different lengths and with different contributing areas, ranging from shorter local flow paths with low discharge and large seasonal variability to streams, springs and wetlands to longer regional flow paths with potentially larger discharge and low seasonal variability, commonly at low basin elevations. How does this variation in physical hydrology affect the type and distribution of GDEs? Using data on hypsographic position, groundwater-dependent species distributions, groundwater pumping and streamflow from Oregon, USA, we provide a conceptual model and initial supporting evidence demonstrating that spatial variation in groundwater flow path scales, illustrated using basin hypsography, is a driver of non-random distribution of GDEs across watersheds. Further, we posit that the spatial variation in primary stressors to groundwater (e.g. pumping and climate change) will differentially affect GDEs depending on their hypsographic position. Furthermore, because of their use for irrigation and municipal water supply, regional groundwater systems and associated species are more likely to be studied and receive regulatory protection.Our initial data point to a disproportionate focus on larger discharge, lower elevation GDEs, which leads to a bias in our understanding of the full suite of biodiversity associated with groundwater discharge as well as their stressors and potential mechanisms for protection.

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Geologic and Geomorphic Controls on the Occurrence of Fens in the Oregon Cascades and Implications for Vulnerability and Conservation

et al. 2015

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Analysis of 1997–2008 groundwater level changes in the upper Deschutes Basin, Central Oregon

Cited by 4 publications

References 9 publications

Simulation of groundwater and surface-water flow in the upper Deschutes Basin, Oregon

Simulation of groundwater and surface-water flow in the upper Deschutes Basin, Oregon

Groundwater, biodiversity, and the role of flow system scale

Geologic and Geomorphic Controls on the Occurrence of Fens in the Oregon Cascades and Implications for Vulnerability and Conservation

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