Multi-Point Temp String Buoy - Lake Temperature ProfileProject Overview
Carleton College, Department of Geology will enhance classroom learning and student/faculty research with real-time water quality data. A National Science Foundation Grant was used to setup a water quality buoy on Upper Lyman Lake. The new buoy logs temperature data at 4 depths every 15 minutes. Once per hour, the data is transmitted by radio frequency to the geology lab in Mudd Hall. The temperature profile data is posted to a website for student and professor access.
System Description
NexSens Technology configured a data logging and radio telemetry buoy system to continuously record and transmit lake temperature profiles. The NexSens MB-300 is a rugged 300 lb. buoyancy monitoring buoy designed for a wide range of environmental monitoring applications. The field-hardened buoy provides a secure platform for a wide range of open water deployments. Real-time data options include cellular and radio telemetry. An onboard solar panel kit charges the data logger battery for continuous, unattended monitoring applications.
A NexSens 4100-iSIC radio data logger transmits data from the lake site into the Geology Laboratory at hourly intervals. iChart software processes the data and posts it to a web-based data center (WQData.com), where both historic and real-time data can be viewed using a standard internet browser. The NexSens system enables Carleton Geology students and professors to continuously monitor Upper Lyman Lake and easily share this information over the web. | NexSens 1001 | iChart software | NexSens WQData-6 | Annual data hosting package for up to 6 field sites, additional site expansion available | NexSens 4100-BASE | Spread spectrum radio base station | NexSens A41 | Omni antenna, radio frequency, 890-970 MHz | NexSens A31 | RF cable, low-loss, 10' | NexSens MB-300 | Monitoring buoy, 30" dia. polymer-coated foam hull, 300 lb. buoyancy | Carmanah 501-A15 | LED Beacon with solar power, 15 flashes per minute (064), amber | NexSens 4100-iSIC | iSIC data logger with spread spectrum radio telemetry | NexSens A20 | Solar power kit, 5-watt. Includes solar panel, regulator, 8.5 A-Hr battery & watertight enclosure | NexSens A44 | High gain antenna, radio frequency, 3 dB | NexSens A36 | RF cable, micro-loss, 6' | NexSens TS110 | Temperature string, N sensors, S meter apart, L meters of cable (user specified) |
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