Array of three single-frequency side-looking acoustic-Doppler profiler
Detailed Description
Array of three single-frequency side-looking acoustic-Doppler profilers used to measure suspended-sediment concentration and grain size at the Colorado River near Grand Canyon, Arizona, gaging station. From top to bottom: 2-MHz Nortek EasyQ, 600-kHz Nortek Aquadopp, and 1-MHz Nortek EasyQ acoustic-Doppler profilers. Photograph taken at low water on November 11, 2013.