Inland Lake Monitoring System

There are a number of issues that occur in and around lakes such as thermal pollution, low DO, fish kills, excess nutrient loads and other contaminants and more. Inland lake monitoring platforms have many advantages and can help water quality managers stay on top of what is important, the health of the lake.

The easily deployable CB-450 buoy platform supports a variety of sensors and is customizable for any project. With various telemetry options, alert features, administrator controls and customizable outputs, projects can be managed easily and shared with collaborators.

Hover over component, click for details.

NexSens M550 1-3NM Solar Marine Light

NexSens M550 solar marine lights are designed for mounting to the CB-Series data buoys per USCG requirements.

NexSens CB-450 Data Buoy

The CB-450 data buoy is ideally suited for dredge turbidity monitoring, temperature profiling, dissolved oxygen monitoring, limnology research, and weather monitoring on inland lakes.

NexSens EXO Sonde Mooring Cages

The NexSens EXO Sonde Mooring Cages provide a secure and convenient means of deploying a YSI EXO multi-parameter water quality sonde.

YSI EXO3 Multi-Parameter Water Quality Sonde

EXO3 is a purpose-built sonde for monitoring major water quality parameters, including: pH, conductivity, temperature, turbidity and dissolved oxygen.

NexSens LI-192 Underwater PAR Sensor Mounting Arm

The M-ARM-P mounting extension is used to mount a LI-COR LI-192 underwater PAR sensors and Zebra-Tech Hydro-Wiper to a subsurface instrument cage.

LI-COR LI-192 Underwater PAR Sensor

The LI-COR LI-192 Underwater PAR Sensor Quantum sensor accurately measures photosynthetically active radiation (PAR) in freshwater or saltwater environments.

TS210 Temperature String

The NexSens TS210 Temperature String provides high precision measurements for profiling in lakes, streams, and coastal waters.

NexSens Stainless Steel Bow Shackles

Stainless steel bow shackles securely connect mooring chain and custom-built SS mooring lines to both NexSens data buoys and pyramid anchors.

NexSens Stainless Steel Swivels

Stainless steel bow shackles securely connect mooring chain and custom-built SS mooring lines to NexSens data buoys and pyramid anchors.

NexSens Galvanized Chain

Galvanized chain is used to construct mooring lines for buoy-based water quality applications requiring single or multi-point moorings.

NexSens Pyramid Anchors

For excellent holding power, cast iron or steel mooring anchors such as these pyramids are far superior to granite or concrete blocks.

Case Studies


Stone Lab Buoy Tracks Algae

Even before the Toledo Water Crisis, researchers at Stone Lab were concerned with the algae blooming in Lake Erie. With their location on the lake’s Gibraltar Island, it was easy for them to see the tides whipping up green stuff each day in the summer months. So long before the crisis, which took place in August 2014, scientists at the Ohio State University lab began working with engineers at NexSens Technology to devise a monitoring solution that would fit their needs. In addition, the platform would need to be versatile enough to meet the lab’s mission of education, research and outreach.

Read More

Lake Nipissing Algae Events

Despite Lake Nipissing’s popularity as a destination for tourists and fishermen in Ontario, Canada, relatively little is known about nutrient availability for algae that sometimes blooms there. Luckily, several investigators at the University of Saskatchewan and Nipissing University are working to fill the gap in understanding. Key to answering their questions is learning more about the lake’s stratification, or how its water column differentiates based on changes in temperature. These differences play an important role in how the lake mixes — during long periods of stability, bottom waters can become anoxic and sedimentary phosphorus can become mobile and available to Lake Nipissing algae communities.

Read More

Algae Bloom Monitoring Network

When the tourist season heats up in northeastern Oklahoma each year, the number of people flocking to Grand Lake o’ the Cherokees puts its population high enough to compete with that of larger cities in the state, including Oklahoma City and Tulsa. All the swimming, fishing and boating that goes on means there is a lot of primary body contact with the lake’s water. Because of that, as well as growing national interest in protecting the water quality of freshwater lakes in the face of harmful algal blooms that are occurring more commonly, officials with the Oklahoma Water Resources Board plan to deploy several data buoys to form an algae bloom monitoring network.

Read More