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The dataset contains GPS survey data from the second of two surveys conducted after a high flow event on August 20, 2018, at the USGS streamgage 04087088 - Underwood Creek at Wauwatosa, WI. This survey, on July 17, 2019, documents cross section geometry. The survey was performed using Trimble R10 RTK GPS unit (SN: 5326439561) and Trimble S7 Robotic Total Station (SN: 37430018).
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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 marks and provides ground control for a small unmanned aircraft system survey. The surveys were performed using Leica GS14 RTK GPS equipment, S/N base-2806898, S/N rover-2806883.
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The dataset contains GPS survey data from the first of two surveys conducted after a high flow event on August 20, 2018, at the USGS streamgage 04087088 - Underwood Creek at Wauwatosa, WI. This survey, on September 14, 2018, documents high-water marks. The survey was performed using Topcon GR-5 GPS unit (SN: 851-10007).
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Continuous slope-area sensors are installed at four cross sections downstream from Flume 6 operated by the Agricultural Research Service (ARS) at the Walnut Gulch Experimental Watershed. The CSA reach was installed to test the CSA method and determine channel roughness using the known discharge measured by Flume 6. A flow event occurred on July 28, 2017. A GPS survey was conducted on August 2, 2017, to document the CSA pin elevations, cross section geometry at the CSA sensor locations, and high-water marks from the flow event.
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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.
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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, 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 below ARS Flume 6, near Tombstone, AZ.
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 River below Dragoon Wash at St David, AZ). The second survey, conducted on December 8, 2020, documents CSA pin elevations and additional high-water marks in the CSA reach from the flow event on September 8, 2020, and the elevation of the thalweg from the CSA reach to the streamgage (09471580) at the bridge.
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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, documents cross section geometry and high-water marks from the flow event and sensor locations in the CSA reach, as well as one high-water mark, a USGS bench mark, and the ALERT sensor at the ALERT gage. The second survey, on May 17, 2019, documents cross section geometry, an additional high-water mark, and the ALERT sensor at...
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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 David, AZ, was also surveyed. The other three CSA sensors at 09471588 were destroyed during the November 29, 2019, flow event.
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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 below ARS Flume 6, near Tombstone, AZ.
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Continuous slope-area (CSA) sensors are installed at four cross sections downstream from Flume 6 operated by the Agricultural Research Service (ARS) at the Walnut Gulch Experimental Watershed. A flow event occurred on July 28, 2017. Stage data were recorded by submersible pressure transducers at each of the four cross sections. The stage data, along with cross section geometry and field-assigned roughness values, were used to compute discharge for the flow event using the CSA method.


    map background search result map search result map 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 2017/07/28 Flow Event Data 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 08/02/2017 GPS Survey 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Continuous Slope-Area High-Water Mark Survey of July 10, 2018, Flood at I-10 Frontage Rd at Twin Peaks Rd, Marana, AZ 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data 09487000 - Brawley Wash near Three Points, AZ - 2018/09/19 GPS Survey 04087088 - Underwood Creek at Wauwatosa, WI - 2018/09/14 GPS Survey 04087088 - Underwood Creek at Wauwatosa, WI - 2019/07/17 GPS Survey 09471580 - San Pedro River at St David, AZ - 2019/12/05 GPS Survey 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey 09471580 - San Pedro River at St David, AZ - 2020/10/14 and 2020/12/08 GPS Surveys 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey 04087088 - Underwood Creek at Wauwatosa, WI - 2018/09/14 GPS Survey 04087088 - Underwood Creek at Wauwatosa, WI - 2019/07/17 GPS Survey 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 08/02/2017 GPS Survey 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 2017/07/28 Flow Event Data 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Continuous Slope-Area 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data 09487000 - Brawley Wash near Three Points, AZ - 2018/09/19 GPS Survey 09471580 - San Pedro River at St David, AZ - 2019/12/05 GPS Survey 09471580 - San Pedro River at St David, AZ - 2020/10/14 and 2020/12/08 GPS Surveys High-Water Mark Survey of July 10, 2018, Flood at I-10 Frontage Rd at Twin Peaks Rd, Marana, AZ