Hydrologic technicians Adam and Vanessa make a flow measurement using an acoustic doppler current profiler (ADCP). The ADCP is tethered to a rope and is pulled across the channel so it can collect channel depth and flow velocity measurements. The technicians did a great job getting a measurement close to the peak flow at this site on December 19, 2025.
Adam Gibson
Adam Gibson is a hydrologic technician at the USGS Oregon Water Science Center.
Science and Products
Measuring Willamette River streamflow in Portland
Learn about one of Oregon's most relied upon streamflow gages.
Chicken Creek high-flow measurement
Hydrologic technicians Adam and Vanessa make a flow measurement using an acoustic doppler current profiler (ADCP). The ADCP is tethered to a rope and is pulled across the channel so it can collect channel depth and flow velocity measurements. The technicians did a great job getting a measurement close to the peak flow at this site on December 19, 2025.
Science and Products
Measuring Willamette River streamflow in Portland
Learn about one of Oregon's most relied upon streamflow gages.
Chicken Creek high-flow measurement
Hydrologic technicians Adam and Vanessa make a flow measurement using an acoustic doppler current profiler (ADCP). The ADCP is tethered to a rope and is pulled across the channel so it can collect channel depth and flow velocity measurements. The technicians did a great job getting a measurement close to the peak flow at this site on December 19, 2025.
Hydrologic technicians Adam and Vanessa make a flow measurement using an acoustic doppler current profiler (ADCP). The ADCP is tethered to a rope and is pulled across the channel so it can collect channel depth and flow velocity measurements. The technicians did a great job getting a measurement close to the peak flow at this site on December 19, 2025.