A New Tool for Analyzing Event Sediment Dynamics Using High-Frequency Turbidity Sensor Data
Nguyen, LInh
Nguyen, LInh
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Abstract
A common water resource issue that needs addressing to ensure clean drinking water is the presence and excessive amount of turbidity in a waterbody. Recent years have seen a rise in popularity of turbidity sensor deploy at water monitoring stations, which allow for continuous suspended sediment monitoring. Such monitoring network collects massive volumes of high-frequency, real-time streamflow (Q) and turbidity (C) data, offering opportunities for developing new data-driven analysis methods. Our research presents an event-based analysis tool in MATLAB to 1) process the high-frequency C, Q data, 2) automate detection and delineation of storm events using C, Q data simultaneously, 3) visualize C-Q hysteresis, and 4) relate storm events across multiple stations. We demonstrate the application of the tool using sensor data collected at several USGS water stations in the Upper Esopus Creek watershed in New York, which experiences significant erosion issues resulting in high turbidity. The results will assist watershed managers in designing and assessing the effectiveness of erosion mitigation strategies. This tool can be adapted to studies that investigate other water quality constituents such as solutes and nutrients at the event scale.
Description
Undergraduate
Date
2021-01-01