Water Data for Nisqually River Delta at Site D1

An upward-looking acoustic Doppler velocity meter (ADVM, SonTek SW, 3.0 MHz) located in a tidal channel of the Nisqually River Delta at site D1 (N 47° 05’ 37”/W 122° 43’ 17”) measured water level and current velocity at 15-minute intervals from October 14, 2016 to May 31, 2017 (175 days, excluding missing periods). This site is in a tidal channel at a levee breach where flow is tidally influenced. The water depth of the sensor ranged from 0.44 to 4.41 m. The elevation (NAVD88) of the ADVM sensor was survey by RTN-GPS. The offset to convert all water depth time-series data to water surface elevation (NAVD88) is -0.61 m. The water temperature ranged from -0.4 to 22.7 degrees C but may have been bias during periods of low tide due to [...]