Arizona Water Science Center

Publications

Filter Total Items: 337
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Year Published: 2020

Rethinking groundwater flow on the South Rim of the Grand Canyon, USA: Characterizing recharge sources and flow paths with environmental tracers

In the arid landscape south of the Grand Canyon, natural springs and seeps are a critical resource for endemic species and Native American tribes. Groundwater is potentially threatened by expanding populations, visitations, and mineral extraction activities. Environmental tracers including noble gases, stable isotopes of hydrogen and oxygen in...

Solder, John E.; Beisner, Kimberly R.; Anderson, Jessica; Bills, Donald J.

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Year Published: 2020

Critical evaluation of stable isotope mixing end-members for estimating groundwater recharge sources: Case study from the South Rim of the Grand Canyon, Arizona, USA

Springs and groundwater seeps along the South Rim of the Grand Canyon serve an important function for the region’s ecosystems, residents (both human and wild animal), and economy. However, these springs and seeps are potentially vulnerable to contamination, increased groundwater extraction, or reduced recharge due to climate change. Protection of...

Solder, John E.; Beisner, Kimberly R.

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Year Published: 2020

Geochemical characterization of groundwater evolution south of Grand Canyon, Arizona (USA)

Better characterization of the geochemical evolution of groundwater south of Grand Canyon, Arizona (USA), is needed to understand natural conditions and assess potential effects from breccia-pipe uranium mining in the region. Geochemical signatures of groundwater at 28 sampling locations were evaluated; baseline concentrations for select trace...

Beisner, Kimberly R.; Solder, John E.; Tillman, Fred; Anderson, Jessica; Antweiler, Ronald C.

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Year Published: 2020

Using small unmanned aircraft systems for measuring post-flood high-water marks and streambed elevations

Floods affected approximately two billion people around the world from 1998–2017, causing over 142,000 fatalities and over 656 billion U.S. dollars in economic losses. Flood data, such as the extent of inundation and peak flood stage, are needed to define the environmental, economic, and social impacts of significant flood events. Ground-based...

Forbes, Brandon T.; DeBenedetto, Geoffrey; Dickinson, Jesse E.; Bunch, Claire; Fitzpatrick, Faith A.

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Year Published: 2020

Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona

This is the third and final report in a series that describe the groundwater resources of the Hualapai Indian Reservation. These reports document the findings of a comprehensive groundwater study conducted on the reservation and adjacent areas from 2015 through 2018 by the U.S. Geological Survey in cooperation with the Bureau of Reclamation. The...

Mason, Jon P.

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Year Published: 2020

Geology and hydrology of the Truxton basin and Hualapai Plateau, northwestern Arizona

The geology of northwestern Arizona is prominently displayed on the canyon and cliff walls that compose the high-desert landscape of the Hualapai Plateau and that border the Truxton basin. The Truxton basin is a small topographic basin filled with Quaternary and Tertiary deposits and volcanic rock (about 1,600 feet thick near Truxton, Arizona)...

Mason, Jon P.; Mason, Jon P.; Bills, Donald J.; Macy, Jamie P.
Mason, J.P., Bills, D.J., and Macy, J.P., 2020, Geology and hydrology of the Truxton basin and Hualapai Plateau, northwestern Arizona, chap. B of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 9 p., https://doi.org/10.3133/sir20205017B.

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Year Published: 2020

Gravity surveys and depth to bedrock in the Truxton basin, northwestern Arizona

The volume of available groundwater and the effect of groundwater pumping in an alluvial basin is influenced in part by the shape and depth of the basin boundary, which commonly consists of low-permeability bedrock. To better understand the shape and depth of basin fill in the Truxton valley in Arizona, new gravity data were collected at 149...

Mason, Jon P.; Kennedy, Jeffrey R.
Kennedy, J.R., 2020, Gravity surveys and depth to bedrock in the Truxton basin, northwestern Arizona, chap. C of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 10 p., https://doi.org/10.3133/sir20205017C.

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Year Published: 2020

Groundwater availability in the Truxton basin, northwestern Arizona

This is a summary chapter of a multichapter volume that includes a brief description of the study area and descriptions of the hydrogeologic framework, numerical groundwater-flow model, and estimates of simulated changes to groundwater levels of the Truxton aquifer.

Mason, Jon P.; Mason, Jon P.; Knight, Jacob E.; Ball, Lyndsay B.; Kennedy, Jeffrey R.; Bills, Donald J.; Macy, Jamie P.
Mason J.P., Knight, J.E., Ball, L.B. Kennedy, J.R., Bills, D.J., and Macy, J.P., 2020, Groundwater availability in the Truxton basin, northwestern Arizona, chap. A of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 14 p., https://doi.org/10.3133/sir20205017A.

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Year Published: 2020

Hydrogeologic characterization of the Hualapai Plateau on the western Hualapai Indian Reservation, northwestern Arizona

This study was developed to assess if groundwater from the western Hualapai Plateau could be used to supply developments in the Grand Canyon West area of the Hualapai Indian Reservation and to collect hydrogeologic data for future use in a numerical groundwater model for the reservation. Ground-based geophysical surveys; existing well, spring, and...

Mason, Jon P.; Macy, Jamie P.; Bills, Donald J.; Gungle, Bruce W.; Jones, Casey J.
Mason, J.P., Macy, J.P., Bills, D.J., Gungle, B.W., and Jones, C.J., 2020, Hydrogeologic characterization of the Hualapai Plateau on the western Hualapai Indian Reservation, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5025, 38 p, https://doi.org/10.3133/sir20205025.

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Year Published: 2020

Simulation of groundwater-level changes from projected groundwater withdrawals in the Truxton basin, northwestern Arizona

A three-dimensional, numerical groundwater flow model of the Hualapai Plateau and Truxton basin was developed to assist water-resource managers in understanding the potential effects of projected groundwater withdrawals on groundwater levels and storage in the basin. The Truxton Basin Hydrologic Model (TBHM) is a transient model that simulates the...

Mason, Jon P.; Knight, Jacob E.
Knight, J.E., 2020, Simulation of groundwater-level changes from projected groundwater withdrawals in the Truxton basin, northwestern Arizona, chap. E of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 39 p., https://doi.org/10.3133/sir20205017E.

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Year Published: 2019

Reach-scale monitoring and modeling of rivers--Expanding hydraulic data collection beyond the cross section

For over 125 years, the U.S. Geological Survey streamgage network has provided important hydrologic information about rivers and streams throughout the Nation. Traditional streamgage methods provide reliable stage and streamflow data but typically only monitor stage at a single location in a river and require frequent calibration streamflow...

Forbes, Brandon T.; Bunch, Claire E.; DeBenedetto, Geoffrey; Shaw, Corey J.; Gungle, Bruce
Forbes, B.T., Bunch, C.E., DeBenedetto, G., Shaw, C.J., and Gungle, B., 2019, Reach-scale monitoring and modeling of rivers—Expanding hydraulic data collection beyond the cross section: U.S. Geological Survey Fact Sheet 2019–3073, 6p., https://doi.org/10.3133/fs20193073.

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Year Published: 2019

Seasonality of climatic drivers of flood variability in the conterminous United States

Flood variability due to changes in climate is a major economic and social concern. Climate drivers can affect the amount and distribution of flood-generating precipitation through seasonal shifts in storm tracks. An understanding of how the drivers may change in the future is critical for identifying the regions where the magnitude of floods may...

Dickinson, Jesse E.; Harden, Tessa M.; McCabe, Gregory J.