A NexSens CB-150 LoRaWAN buoy deployed in lower Green Bay, collecting valuable, real-time surface algal pigment, temperature profile, and dissolved oxygen data.

Using Data Buoys to Monitor Southern Green Bay

University of Wisconsin

Green Bay has suffered continuous influxes of pollutants and contaminants from the Fox River due to non-point source runoff in the watershed. Deterioration of the bay’s water quality extends well into the last century, and while cleanup efforts in the bay have been successful overall, continuous monitoring of the bay is important to ecosystem management. […]

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3.3 Dissolved Oxygen

Dissolved oxygen, often abbreviated as DO, is the amount of free oxygen molecules (O2) dissolved in water. Oxygen enters the water through atmospheric diffusion, plant photosynthesis, or aeration (either natural or man-made). DO is typically represented in measurement units as percent of air saturation (%sat) and concentration in milligrams per liter (mg/L) or parts per […]

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YSI ODO RTU X-Series Integration Guide

Real-Time Water Quality Measurements The YSI ODO RTU Optical Dissolved Oxygen Sensor is compatible with NexSens X-Series data loggers using the Modbus-RTU communication protocol and the RS-485 sensor interface. A pre-defined script on the X-Series data loggers can detect, log, and transmit all parameters available on the sensor. Parameter data is transmitted, in real-time, at […]

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Dissolved Oxygen Monitoring

The Federal Energy Regulatory Commission (FERC) and other agencies have established dissolved oxygen limits for hydropower facility operations to minimize dam impacts on the local aquatic habitats. NexSens dissolved oxygen systems offer a flexible sensor, data logging, and communications platform to monitor these levels in near real-time.

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