Claire Bunch
Claire Bunch is a Hydrologist in the Arizona Water Science Center, Tucson Office.
Science and Products
Colorado River at Salt Wash near Moab, UT - 2020/06/09 GPS Survey
The dataset contains GPS survey data collected at Colorado River at Salt Wash near Moab, UT, as part of a surface velocity mapping effort. The survey was conducted on June 9, 2020, and documents ground control points for a small unmanned aircraft system (sUAS) survey. The survey was performed using Leica GS14 RTK GPS equipment, S/N base-2806898, S/N rover-2806883.
Colorado River at Salt Wash near Moab, UT - 2020/06/10 Particle Image Velocimetry
The dataset consists of a shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Salt Wash near Moab, UT, on June 10, 2020. The dataset contains approximately 1.4 km of river length. The surface velocity measurements were made by applying Large-Scale Particle Image Velocimetry (LSPIV) techniques, using overlapping videos collected by small Unmanned Aircraft
Colorado River at Salt Wash near Moab, UT - 2020/10/06 GPS Survey
The dataset contains GPS survey data collected at Colorado River at Salt Wash near Moab, UT, as part of a surface velocity mapping effort. The survey was conducted on October 6, 2020, and documents ground control points for a small unmanned aircraft system (sUAS) survey. The survey was performed using Leica GS14 RTK GPS equipment, S/N base-2806898, S/N rover-2806883.
Colorado River at Salt Wash near Moab, UT - 2020/10/07 Particle Image Velocimetry
The dataset consists of a shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Salt Wash near Moab, UT, on October 7, 2020. The dataset contains approximately 3 km of river length. The surface velocity measurements were made by applying Large-Scale Particle Image Velocimetry (LSPIV) techniques, using overlapping videos collected by small Unmanned Aircraft
09471580 - San Pedro River at St David, AZ - 2020/10/14 and 2020/12/08 GPS Surveys
The dataset contains data from two GPS surveys conducted after a flow event on September 8, 2020, at the USGS streamgage 09471580 - San Pedro River at St David, AZ. The first survey, conducted on October 14, 2020, documents CSA cross section geometry, CSA pin elevations, and high-water marks at CSA cross sections from the flow event in the CSA reach downstream from the gage (09471588 - San Pedro R
09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey
The dataset contains GPS survey data from two surveys conducted after a flow event on February 15, 2019, at the USGS continuous slope-area (CSA) gage 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ. The CSA gage is located downstream from Pima County Regional Flood Control District ALERT gage 2184 - Bear Canyon Wash near Bear Canyon Rd. The first survey, on February 19, 2019, documen
09471580 - San Pedro River at St David, AZ - 2019/12/05 GPS Survey
The dataset contains data from a GPS survey conducted after a flow event on November 29, 2019, at the USGS streamgage 09471580 - San Pedro River at St David, AZ. The survey, conducted on December 5, 2019, documents cross section geometry and high-water marks from the flow event in the reach downstream from the gage. One CSA pin elevation at CSA 09471588 - San Pedro River below Dragoon Wash at St D
09471580 - San Pedro River at St David, AZ - 2019/06/12 GPS Survey
A GPS survey was conducted on June 12, 2019, to document the cross section geometry at the streamgage 09471580 - San Pedro River at St David, AZ, and CSA pin elevations and cross section geometry at the CSA sensor locations at CSA 09471588 - San Pedro River below Dragoon Wash at St David, AZ. One cross section was surveyed at streamgage 09471580 - San Pedro River at St David, AZ; and four CSA pin
09471580 - San Pedro River at St David, AZ - 2018/07/10 GPS Survey
A GPS survey was conducted on July 10, 2018, to document the CSA pin elevations and cross section geometry at the CSA sensor locations at CSA 09471587 - Dragoon Wash above San Pedro River at St David, AZ, and CSA 09471588 - San Pedro River below Dragoon Wash at St David, AZ. Three CSA pin elevations and cross sections were surveyed at CSA 09471587 - Dragoon Wash above San Pedro River at St David,
09487000 - Brawley Wash near Three Points, AZ - 2018/09/19 GPS Survey
The dataset contains GPS survey data from two surveys conducted after a flow event on September 19, 2018, at the USGS streamgage 09487000 - Brawley Wash near Three Points, AZ. The first survey, on October 1, 2018, documents cross section geometry and high-water marks from the flow event in the reach downstream from the gage. The second survey, on January 31, 2019, documents additional high-water m
09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data
The dataset consists of a slope-area computation of peak discharge (published via NWIS), stage data from continuous slope-area (CSA) sensors, CSA computations of discharge data, verified Manning's roughness coefficients (n), channel geometry and reach properties associated with Manning's n computations, and GPS survey data associated with the flow event on July 28, 2017, at 09471143 - Walnut Gulch
High-Water Mark Survey of July 10, 2018, Flood at I-10 Frontage Rd at Twin Peaks Rd, Marana, AZ
A train derailment occurred in Marana, Arizona, on July 10, 2018. Runoff from a severe thunderstorm was flowing over the tracks at the time and may have contributed to the derailment. At the request of the Pima County Regional Flood Control District, USGS collected high-water marks for the flood event upstream from the derailment area.
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 global positioning system (GPS) surveys of post-flood
Authors
Brandon T. Forbes, Geoffrey DeBenedetto, Jesse E. Dickinson, Claire Bunch, Faith A. Fitzpatrick
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 measurements. Direct measurements are not always feasible
Authors
Brandon T. Forbes, Claire E. Bunch, Geoffrey DeBenedetto, Corey J. Shaw, Bruce Gungle
Continuous slope-area discharge records in Maricopa County, Arizona, 2004–2012
Continuous slope-area (CSA) streamgages have been developed and implemented by the U.S. Geological Survey (USGS) to enable the recording of discharge hydrographs in areas where direct discharge measurements cannot be made. The flashy nature of streamflow in parts of the arid Southwest and remote location of many sites make discharge measurements difficult or impossible to obtain. Consequently, ava
Authors
Stephen M. Wiele, John W. Heaton, Claire E. Bunch, David E. Gardner, Christopher F. Smith
Science and Products
- Data
Colorado River at Salt Wash near Moab, UT - 2020/06/09 GPS Survey
The dataset contains GPS survey data collected at Colorado River at Salt Wash near Moab, UT, as part of a surface velocity mapping effort. The survey was conducted on June 9, 2020, and documents ground control points for a small unmanned aircraft system (sUAS) survey. The survey was performed using Leica GS14 RTK GPS equipment, S/N base-2806898, S/N rover-2806883.Colorado River at Salt Wash near Moab, UT - 2020/06/10 Particle Image Velocimetry
The dataset consists of a shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Salt Wash near Moab, UT, on June 10, 2020. The dataset contains approximately 1.4 km of river length. The surface velocity measurements were made by applying Large-Scale Particle Image Velocimetry (LSPIV) techniques, using overlapping videos collected by small Unmanned AircraftColorado River at Salt Wash near Moab, UT - 2020/10/06 GPS Survey
The dataset contains GPS survey data collected at Colorado River at Salt Wash near Moab, UT, as part of a surface velocity mapping effort. The survey was conducted on October 6, 2020, and documents ground control points for a small unmanned aircraft system (sUAS) survey. The survey was performed using Leica GS14 RTK GPS equipment, S/N base-2806898, S/N rover-2806883.Colorado River at Salt Wash near Moab, UT - 2020/10/07 Particle Image Velocimetry
The dataset consists of a shapefile of measurements of surface velocity magnitude and direction at the Colorado River at Salt Wash near Moab, UT, on October 7, 2020. The dataset contains approximately 3 km of river length. The surface velocity measurements were made by applying Large-Scale Particle Image Velocimetry (LSPIV) techniques, using overlapping videos collected by small Unmanned Aircraft09471580 - San Pedro River at St David, AZ - 2020/10/14 and 2020/12/08 GPS Surveys
The dataset contains data from two GPS surveys conducted after a flow event on September 8, 2020, at the USGS streamgage 09471580 - San Pedro River at St David, AZ. The first survey, conducted on October 14, 2020, documents CSA cross section geometry, CSA pin elevations, and high-water marks at CSA cross sections from the flow event in the CSA reach downstream from the gage (09471588 - San Pedro R09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey
The dataset contains GPS survey data from two surveys conducted after a flow event on February 15, 2019, at the USGS continuous slope-area (CSA) gage 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ. The CSA gage is located downstream from Pima County Regional Flood Control District ALERT gage 2184 - Bear Canyon Wash near Bear Canyon Rd. The first survey, on February 19, 2019, documen09471580 - San Pedro River at St David, AZ - 2019/12/05 GPS Survey
The dataset contains data from a GPS survey conducted after a flow event on November 29, 2019, at the USGS streamgage 09471580 - San Pedro River at St David, AZ. The survey, conducted on December 5, 2019, documents cross section geometry and high-water marks from the flow event in the reach downstream from the gage. One CSA pin elevation at CSA 09471588 - San Pedro River below Dragoon Wash at St D09471580 - San Pedro River at St David, AZ - 2019/06/12 GPS Survey
A GPS survey was conducted on June 12, 2019, to document the cross section geometry at the streamgage 09471580 - San Pedro River at St David, AZ, and CSA pin elevations and cross section geometry at the CSA sensor locations at CSA 09471588 - San Pedro River below Dragoon Wash at St David, AZ. One cross section was surveyed at streamgage 09471580 - San Pedro River at St David, AZ; and four CSA pin09471580 - San Pedro River at St David, AZ - 2018/07/10 GPS Survey
A GPS survey was conducted on July 10, 2018, to document the CSA pin elevations and cross section geometry at the CSA sensor locations at CSA 09471587 - Dragoon Wash above San Pedro River at St David, AZ, and CSA 09471588 - San Pedro River below Dragoon Wash at St David, AZ. Three CSA pin elevations and cross sections were surveyed at CSA 09471587 - Dragoon Wash above San Pedro River at St David,09487000 - Brawley Wash near Three Points, AZ - 2018/09/19 GPS Survey
The dataset contains GPS survey data from two surveys conducted after a flow event on September 19, 2018, at the USGS streamgage 09487000 - Brawley Wash near Three Points, AZ. The first survey, on October 1, 2018, documents cross section geometry and high-water marks from the flow event in the reach downstream from the gage. The second survey, on January 31, 2019, documents additional high-water m09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data
The dataset consists of a slope-area computation of peak discharge (published via NWIS), stage data from continuous slope-area (CSA) sensors, CSA computations of discharge data, verified Manning's roughness coefficients (n), channel geometry and reach properties associated with Manning's n computations, and GPS survey data associated with the flow event on July 28, 2017, at 09471143 - Walnut GulchHigh-Water Mark Survey of July 10, 2018, Flood at I-10 Frontage Rd at Twin Peaks Rd, Marana, AZ
A train derailment occurred in Marana, Arizona, on July 10, 2018. Runoff from a severe thunderstorm was flowing over the tracks at the time and may have contributed to the derailment. At the request of the Pima County Regional Flood Control District, USGS collected high-water marks for the flood event upstream from the derailment area. - Multimedia
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- Publications
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 global positioning system (GPS) surveys of post-floodAuthorsBrandon T. Forbes, Geoffrey DeBenedetto, Jesse E. Dickinson, Claire Bunch, Faith A. FitzpatrickReach-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 measurements. Direct measurements are not always feasibleAuthorsBrandon T. Forbes, Claire E. Bunch, Geoffrey DeBenedetto, Corey J. Shaw, Bruce GungleContinuous slope-area discharge records in Maricopa County, Arizona, 2004–2012
Continuous slope-area (CSA) streamgages have been developed and implemented by the U.S. Geological Survey (USGS) to enable the recording of discharge hydrographs in areas where direct discharge measurements cannot be made. The flashy nature of streamflow in parts of the arid Southwest and remote location of many sites make discharge measurements difficult or impossible to obtain. Consequently, avaAuthorsStephen M. Wiele, John W. Heaton, Claire E. Bunch, David E. Gardner, Christopher F. Smith