Field Evaluation of Shallow-Water Acoustic Doppler Current Profiler Discharge Measurements

Rehmel, Michael S.

doi:10.1061/40856(200)162

Cited by 8 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bank‐operated pulley setups allowed for a more uniform pull, reduced boat motion and consistent edge measurements. Rehmel () and Kinzli et al () found that consistently using a rope and pulley system reduces variability in measurement discharges.…”

Section: Methodssupporting

confidence: 91%

“…The StreamPro is designed to make moving boat discharge measurements in flow depths from 6 in. to 6.5 ft (Kinzli et al , ; AuBuchon et al , ; Rehmel, ) and has a 2000‐kHz frequency with a small, four‐beam transducer head. The StreamPro is equipped with Bluetooth radio telemetry that allows for communication and data transmission between the ADCP and a Pocket PC (in this case the HP iPAQ; HP, Palo Alto, CA, USA).…”

Section: Methodsmentioning

confidence: 99%

“…This distance decreases significantly as battery power in the ADCP decreases (Teledyne, ). Specific validation of the StreamPro shows that it compares favourably with discharges measured using other meters and there is no indication that StreamPro measurements are biased (Rehmel, ). The processing software provides velocity profile data over an entire cross‐sectional measurement (Figure ).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Quantifying River Accretion in the Upper Rio Grande Gorge, New Mexico, by Using an Acoustic Doppler Current Profiler

Kinzli

Shafike²,

Bauer

et al. 2011

River Research & Apps

View full text Add to dashboard Cite

The section of the upper Rio Grande in New Mexico is important to downstream water management and the administration of water rights. It has long been believed that this remote reach of the Rio Grande is characterized by significant groundwater accretions, which contribute to water available for downstream uses. This study focused on the uppermost 30 miles of the Rio Grande in New Mexico seeking to establish locations of groundwater accretions in the reach and document magnitude of gain. In order to quantify the accretion of the upper Rio Grande, an expedition using inflatable kayaks, an acoustic Doppler current profiler (ADCP) and an electromagnetic meter was carried out in the fall of 2008 when natural surface flow was low. The study area covered a stretch of 31 miles. The expedition was able to determine that the total accretion of this stretch of the Rio Grande was 22 ft3s−1 with an average accretion rate of 0.73 ft3s−1 mile−1. Most of the reach exhibited minimal gain or loss, and most of the accretion was centred in Sunshine Valley. One of the most significant results was encountering a large artesian, subaqueous spring, which might be the largest documented spring in New Mexico and contributes nearly 50% of the accretion in the reach. The study was also able to characterize the exact locations of other significant groundwater inputs. In addition to quantifying the accretion of part of the upper Rio Grande, the study provides the framework for using advanced technology in the form of an ADCP to determine river accretions in remote locations. ADCPs offer the benefit of reducing measurement time and measurement error, collect high‐resolution data and are non‐intrusive. Overall, the use of ADCP technology to determine river accretion offers an improvement over traditional methods, and it is the hope of the authors that this technology is utilized for river accretion studies in the future. Copyright © 2011 John Wiley & Sons, Ltd.

show abstract

Section: Methodssupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Quantifying River Accretion in the Upper Rio Grande Gorge, New Mexico, by Using an Acoustic Doppler Current Profiler

Kinzli

Shafike²,

Bauer

et al. 2011

River Research & Apps

View full text Add to dashboard Cite

show abstract

“…There is ample literature covering discharge measurements with Streampro using both approaches (Marsden, 2005;Rehmel, 2006;Frizzel and Vermeyen, 2007;Gunawan et al, 2010). These studies indicate that the StreamPro displays a high variability in the measurement of velocities (Frizzell & Vermeyen, 2007;Gunawan, 2010).…”

Section: Iv31 Introductionmentioning

confidence: 99%

“…These studies indicate that the StreamPro displays a high variability in the measurement of velocities (Frizzell & Vermeyen, 2007;Gunawan, 2010). Notably, the extensive USGS study conducted by Rehmel (2006) Most of the above mentioned studies assess the quality of the measurements based on repeated measurements and instrument comparisons, not through implementation of rigorous uncertainty analysis using standardized approaches. Few attempts to conduct 126 uncertainty analysis for acoustic instruments using rigorous procedures are reported in the specialized literature.…”

Section: Iv31 Introductionmentioning

confidence: 99%

Evaluation of methodologies for continuous discharge monitoring in unsteady open-channel flows

Lee¹

View full text Add to dashboard Cite

Kim, and all my tennis club players! I owe my success to my parents, who always respected my opinion through my life, and supported me emotionally and financially. There is the one last person who I cannot fully express my appreciation. I love you, Hunmin and my two sons, Hojin and Hodoo. v ABSTRACT Ratings curves are conventional means to continuously provide estimates of discharges in rivers. Irrespective of their approach, the most-often adopted assumptions in building these curves are the steady and uniform flow conditions for the open-channel flow that in turn provide a one-to-one relationships between the variables involved in discharge estimation. The steady flow assumption is not applicable during propagation of storm-generated waves hence the question on the validity of the steady rating curves during unsteady flow is of both scientific and practical interest. Scarce experimental evidence and analytical inferences substantiate that during unsteady flows the relationship between some of the variables is not unique leading to loop rating curves (also labeled hysteresis). Neglecting the unsteadiness of the flow when this is large can significantly affect the accuracy of the discharge estimation. Currently, the literature does not offer criteria for a comprehensive evaluation of the methods for estimation of the departure of the looped rating curves from the steady ones nor for identifying the most appropriate means to dynamically capturing hysteresis for different possible river flow conditions and events.The overarching goal of this study is to explore the uncertainty in the conventional stage-discharge rating curves (hQRCs) during unsteady flows and to evaluate methodologies for accurate and continuous discharge estimation. The study addresses these issues using experiments, modeling and analytical inference applied to hQRCs, index velocity rating curves (VQRCs), and continuous slope area (CSA) method.Included in the analysis is the implementation of a standardized framework for uncertainty assessment of the direct discharge measurements that are the building blocks of the rating curve construction. The study demonstrates using conceptual and analytical inferences that there are possibilities to develop a uniform end-to-end methodology to enhance the accuracy of the current protocols for continuous stream flow estimation for

show abstract

Determining the Interaction Between the Rio Grande and Riverside Drains Using an Adcp

Kinzli

Shafike²,

Spelman

et al. 2012

River Res. Applic.

View full text Add to dashboard Cite

The Middle Rio Grande (MRG), located in central New Mexico, is a river that has experienced significant anthropomorphic changes and requires extensive river management to meet all demands for water. To better understand and manage the MRG, the Upper Rio Grande Water Operations Model was developed by several government agencies; however, drain accretion rates, total seepage volumes from the river to the drain network, and salinity were unknown and represented a large data gap. In 2010, a study using an Acoustic Doppler Current Profiler was conducted to determine drain accretion rates throughout the MRG valley. The use of an Acoustic Doppler Current Profiler allowed for a multitude of measurements to be completed in a short-time span. The total yearly baseline drain accretion determined during the study was 269 630 AF, which represents about 59% of the water that is diverted annually in the MRG. The magnitude of the drain accretion was much higher than expected and represents a tangible water volume that needs to be addressed in water accounting and management decisions. The New Mexico Interstate Stream Commission is currently using the collected data to improve Upper Rio Grande Water Operations Model and results from the study will aid the Middle Rio Grande Conservancy District in improving water delivery operations. The findings of this study indicate that a complex groundwater, drain, and river water interaction is taking place near the San Acacia diversion dam with upwelling saline groundwater increasing drain water salinity to levels as high as 1703 mS. Further detailed study of groundwater and river water interactions is suggested in this area.

show abstract

Field Evaluation of Shallow-Water Acoustic Doppler Current Profiler Discharge Measurements

Cited by 8 publications

References 3 publications

Quantifying River Accretion in the Upper Rio Grande Gorge, New Mexico, by Using an Acoustic Doppler Current Profiler

Quantifying River Accretion in the Upper Rio Grande Gorge, New Mexico, by Using an Acoustic Doppler Current Profiler

Evaluation of methodologies for continuous discharge monitoring in unsteady open-channel flows

Determining the Interaction Between the Rio Grande and Riverside Drains Using an Adcp

Contact Info

Product

Resources

About