Search Results - "Bourke, Sarah A."

Sources and fate of nitrate in groundwater at agricultural operations overlying glacial sediments by Bourke, Sarah A, Iwanyshyn, Mike, Kohn, Jacqueline, Hendry, M. Jim

“…Leaching of nitrate (NO3-) from animal waste or fertilisers at agricultural operations can result in NO3- contamination of groundwater, lakes, and streams…”
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Prioritizing Engagement of a Diverse Student Cohort in Online Hydrology Learning at the University of Western Australia by Thompson, Sally E., Bourke, Sarah A., Callow, J. Nikolaus, Hipsey, Matthew R.

“…Like most water education institutions worldwide, hydrology instructors at the University of Western Australia (UWA) had to rapidly adapt traditional teaching…”
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An overview of the hydrology of non‐perennial rivers and streams by Shanafield, Margaret, Bourke, Sarah A, Zimmer, Margaret A, Costigan, Katie H

“…Non‐perennial rivers and streams are ubiquitous on our planet. Although several metrics have been used to statistically group or compare streamflow…”
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A hydrological framework for persistent pools along non-perennial rivers by Bourke, Sarah A, Shanafield, Margaret, Hedley, Paul, Chapman, Sarah, Dogramaci, Shawan

“…Persistent surface water pools along non-perennial rivers represent an important water resource for plants, animals, and humans. While ecological studies of…”
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Characterisation of hyporheic exchange in a losing stream using radon-222 by Bourke, Sarah A., Cook, Peter G., Shanafield, Margaret, Dogramaci, Shawan, Clark, Jordan F.

“…•New method for estimating hyporheic exchange based on stream radon mass balance.•Most sensitive to flow paths tens of metres long with residence times of…”
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Partitioning sources of recharge in environments with groundwater recirculation using carbon-14 and CFC-12 by Bourke, Sarah A., Cook, Peter G., Dogramaci, Shawan, Kipfer, Rolf

“…•Ternary mixing fractions calculated based on CFC-12 and carbon-14.•Mine water recharge extends to greater than 550m from creeks receiving mine…”
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Carbon-14 in streams as a tracer of discharging groundwater by Bourke, Sarah A., Harrington, Glenn A., Cook, Peter G., Post, Vincent E., Dogramaci, Shawan

“…•Carbon-14 in streams used to quantify groundwater discharge and carbon-14 activity.•Controlled isotopic equilibration experiment followed by two field…”
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High-resolution vertical profiles of groundwater electrical conductivity (EC) and chloride from direct-push EC logs by Bourke, Sarah A., Hermann, Kristian J., Hendry, M. Jim

“…Elevated groundwater salinity associated with produced water, leaching from landfills or secondary salinity can degrade arable soils and potable water…”
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Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system by Bourke, Sarah A., Degens, Bradley, Searle, Josephine, de Castro Tayer, Thiaggo, Rothery, Jasmin

“…A semi-arid drainage system overlying a thick (12 km) sedimentary sequence on the Dampier Peninsula in northwestern Australia. In this study we combine aerial…”
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Comparison of Continuous Core Profiles and Monitoring Wells for Assessing Groundwater Contamination by Agricultural Nitrate by Bourke, Sarah A., Turchenek, Jonathan, Schmeling, Erin E., Mahmood, F. Nessa, Olson, Barry M., Hendry, M. Jim

“…Studies that assess groundwater contamination by agricultural nitrate (NO₃⁻) commonly measure groundwater chemistry in samples collected from monitoring wells…”
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Identifying intermittent river sections with similar hydrology using remotely sensed metrics by Tayer, Thiaggo C., Beesley, Leah S., Douglas, Michael M., Bourke, Sarah A., Meredith, Karina, McFarlane, Don

“…•Metric clustering was effective in identifying river sections with similar hydrology.•Results revealed four hydrological zones from highly intermittent to…”
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Ecohydrological metrics derived from multispectral images to characterize surface water in an intermittent river by Tayer, Thiaggo C., Beesley, Leah S., Douglas, Michael M., Bourke, Sarah A., Callow, J. Nik, Meredith, Karina, McFarlane, Don

“…•Metrics provided insights into river morphology and resilience.•The algorithm identified pools, their centreline and upstream and downstream ends.•Metrics…”
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