Current measurements were performed by three downward looking ADCPs (Acoustic Doppler Current Profilers) and one Aquadopp current meter, which are integral components of the DeepLev mooring station (Katz et al., 2020). The current meters include an RDI WorkHorse 300kHz located at 30m, covering the depth range of ~30-90 meters with a vertical resolution of 2 meters, and a temporal resolution of 15 minutes and two RDI QuarterMasters 150kHz, which were deployed at 100 and 375m, covering the depth range of ~100-700 meters, with a vertical resolution of 10 meters and a temporal resolution of 1 hour. The ADCPs went through compass calibration to ensure angle accuracy (error kept under 5°) and performance checks following the manufacturer recommendation and best practice standards. The Aquadopp current meter (Nortek) was deployed at 1315m. Acoustic backscattering is a reliable proxy for turbidity, i.e. suspended particle concentration, ,(e.g. Thevenot et al., 1992; Chanson et al., 2008; Thorne and Hurther, 2014). In this study, we used the Acoustic backscattering intensity (ABI) measured by the Aquadopp current meter at 1315m between November 2016 and September 2020 (excluding some pauses during recovery and redeployment of the mooring) with resolution of 30 minutes. The ABI was not calibrated to particle concentration; therefore, measurements are presented as counts, assuming positive correlation with concentration