Quantifying Ground-Water and Surface-Water Discharge from Evapotranspiration Processes in 12 Hydrographic Areas of the Colorado Regional Ground-Water Flow System, Nevada, Utah, and Arizona

DeMeo, Guy A.; Smith, J. LaRue; Damar, Nancy A.; Darnell, Jon

doi:10.3133/sir20085116

Cited by 6 publications

(10 citation statements)

References 9 publications

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“…Stand‐level estimates of tamarisk ET have been reported to range from 0.75 to 1.45 m per year depending on local climate, weather, and stand density (Nagler et al ., ). Previously reported growing season tamarisk ET rates along the Virgin River and Lower Colorado River range from 0.3 to 12 mm per day (Devitt et al ., ; DeMeo et al ., ). Devitt et al .…”

Section: Discussionmentioning

confidence: 97%

“…DeMeo et al . () estimated an annual average tamarisk ET rate of 1.19 m per year using Bowen ratio energy balance along the Virgin River approximately 10 km from the study area. Bateman et al .…”

Section: Discussionmentioning

confidence: 99%

“…Stand-level estimates of tamarisk ET have been reported to range from 0.75 to 1.45 m per year depending on local climate, weather, and stand density . Previously reported growing season tamarisk ET rates along the Virgin River and Lower Colorado River range from 0.3 to 12 mm per day (Devitt et al, 1998;DeMeo et al, 2008). Devitt et al (1998) estimated annual tamarisk ET using the Bowen ratio energy balance to be 0.75 in 1994 and 1.45 m in 1996, with maximum daily ET of 10-12 mm per day.…”

Section: Discussionmentioning

confidence: 99%

“…Devitt et al (1998) estimated annual tamarisk ET using the Bowen ratio energy balance to be 0.75 in 1994 and 1.45 m in 1996, with maximum daily ET of 10-12 mm per day. DeMeo et al (2008) estimated an annual average tamarisk ET rate of 1.19 m per year using Bowen ratio energy balance along the Virgin River approximately 10 km from the study area. Bateman et al (2013) reported that a peak ET rate estimated using satellite imagery of 2.5 mm per day for post-defoliation along the Virgin River near Mesquite, NV, roughly 22 km away from the study area.…”

Section: Discussionmentioning

confidence: 99%

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Defoliation effects of Diorhabda carinulata on tamarisk evapotranspiration and groundwater levels

et al. 2015

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Diorhabda carinulata (northern tamarisk beetle) has been released in the western United States as a biological control agent for the invasive plant Tamarix spp. (tamarisk). A few studies have been conducted analysing the effects of beetle defoliation on tamarisk water consumption, but predefoliation and post‐defoliation comparison based on field data is scarce. The question of whether beetles substantially alter tamarisk water consumption is still open for discussion. In this study, an eddy covariance station and groundwater monitoring well were installed in a tamarisk stand along the Virgin River near Mesquite, NV, in 2010 to observe the impacts of tamarisk defoliation on evapotranspiration (ET) and groundwater levels. ET was calculated using the eddy covariance method and the White method and supported by Landsat remote sensing estimates. Data collected in 2010 established a baseline since the beetles arrived at the site in late 2010 and started feeding on foliage causing tamarisk trees to turn to brown during 2011. Repeated defoliations in 2011 and 2012 show that post‐defoliation ET values and magnitude of diurnal groundwater‐level fluctuations decreased compared with the predefoliation values. Estimated annual ET and annual average daily groundwater fluctuations were reduced by 18% and 35%, respectively. However, the magnitude of effects of defoliation was dependent on the growth stage of tamarisk at the time of defoliation. Also, ET recovered within a month as tamarisk established new leaves. Results from this study suggest that long‐term changes in ET are highly dependent on repeated defoliation occurrences over several years. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Defoliation effects of Diorhabda carinulata on tamarisk evapotranspiration and groundwater levels

et al. 2015

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“…Because most valley floor areas in the Great Basin are fairly large in size, uncertainty in the estimated ET g rate from phreatophyte areas leads to a large uncertainty in the overall water budget, especially the groundwater budget (Nichols, ). Many recent studies have assessed ET g rates of phreatophyte communities in the Great Basin using micrometeorological, energy balance, and remote sensing techniques (Laczniak et al ., ; Reiner et al ., ; Harrington et al ., ; Maurer et al ., ; Steinwand et al ., ; Groeneveld et al ., ; Moreo et al ., ; DeMeo et al ., ; Allander et al ., ; Devitt et al., 2011; Huntington et al ., ). Relating flux tower estimates of ET to space‐borne remote sensing data (e.g., Landsat, MODIS) allows for spatial scaling of ET to the entire HA.…”

Section: Introductionmentioning

confidence: 99%

Estimating Annual Groundwater Evapotranspiration from Phreatophytes in the Great Basin Using Landsat and Flux Tower Measurements

Beamer

Huntington

Morton

et al. 2013

J American Water Resour Assoc

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Escalating concerns about water supplies in the Great Basin have prompted numerous water budget studies focused on groundwater recharge and discharge. For many hydrographic areas (HAs) in the Great Basin, most of the recharge is discharged by bare soil evaporation and evapotranspiration (ET) from phreatophyte vegetation. Estimating recharge from precipitation in a given HA is difficult and often has significant uncertainty, therefore it is often quantified by estimating the natural discharge. As such, remote sensing applications for spatially distributing flux tower estimates of ET and groundwater ET (ET g ) across phreatophyte areas are becoming more common. We build on previous studies and develop a transferable empirical relationship with uncertainty bounds between flux tower estimates of ET and a remotely sensed vegetation index, Enhanced Vegetation Index (EVI). Energy balance-corrected ET measured from 40 flux tower site-year combinations in the Great Basin was statistically correlated with EVI derived from Landsat imagery (r 2 = 0.97). Application of the relationship to estimate mean-annual ET g from four HAs in western and eastern Nevada is highlighted and results are compared with previous estimates. Uncertainty bounds about the estimated mean ET g allow investigators to evaluate if independent groundwater discharge estimates are "believable" and will ultimately assist local, state, and federal agencies to evaluate expert witness reports of ET g , along with providing new first-order estimates of ET g .

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Post-processed data and graphical tools for a CONUS-wide eddy flux evapotranspiration dataset

et al. 2023

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Quantifying Ground-Water and Surface-Water Discharge from Evapotranspiration Processes in 12 Hydrographic Areas of the Colorado Regional Ground-Water Flow System, Nevada, Utah, and Arizona

Cited by 6 publications

References 9 publications

Defoliation effects of Diorhabda carinulata on tamarisk evapotranspiration and groundwater levels

Defoliation effects of Diorhabda carinulata on tamarisk evapotranspiration and groundwater levels

Estimating Annual Groundwater Evapotranspiration from Phreatophytes in the Great Basin Using Landsat and Flux Tower Measurements

Post-processed data and graphical tools for a CONUS-wide eddy flux evapotranspiration dataset

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