chlorophyll measurement News

  • PME Integrates Turner Design Chlorophyll Sensor For Real-Time Monitoring

    Precision Measurement Engineering, Inc (PME), an internationally known oceanographic and limnologic instrument design corporation, has integrated the Turner Designs Cyclops-7 Chlorophyll sensor to their T-Chain, a multi-sensor string. The T-Chain is a temperature string designed to collect a variety of water column measurements such as temperature, dissolved oxygen, PAR and pressure. The T-Chain ...

  • Monitoring System on ferry measures Delaware Bay water quality data

    This summer, a unique research project using a complex, automated measurement and sampling system on the MV Twin Capes was launched by the University of Delaware College of Earth, Ocean, and Environment (CEOE), with the cooperation and assistance of Delaware River and Bay Authority (DRBA). The SeaKeeper 1000, manufactured and installed aboard the ferry vessel by YSI, collects water quality data ...


    By YSI - a Xylem brand

  • Can simple measures of labile soil organic matter predict corn performance?

    Organic matter is important for soil health and crop productivity. While an indicator of soil quality, a lot of organic matter is in extremely stable forms, and the nutrients in such forms are difficult for plants to use. The active, labile fraction, however, is a modest but important part of the organic matter. “The labile fraction is small – usually less than 20 or even 10 percent, ...

  • PME News, February 2011

    The PME newsletter is distributed quarterly and includes a variety of product updates, new research and future events. This issue includes short articles about the following. Studying Turbulent Mixing LakeESP Withstands Tough Conditions New Chlorophyll a Sensors Data Logger Bidirectional communication Integration with GLEON Vega Database Future Conferences. The entire ...

  • Water quality information in Hawaii

    New information about water quality is now available to people living, working, and playing near Hawaii. U.S. Integrated Ocean Observing System (IOOS®) partners located within the Pacific Islands region recently installed new nutrient sensors on two water quality buoys located at Kilo Nalu and near the Ala Wai outflow. These new sensors will provide early warning of storm runoff or other poor ...

  • Fluorometer Optical Sensor Launch Expands Valeport`s Product Range

    Valeport expands it's product range into optical sensors and debuts with the new Hyperion Fluorometer. Valeport’s new Hyperion Fluorometer delivers a high performance measurement of Chlorophyll A, Rhodamine and ...


    By Valeport Ltd

  • Water contamination detector

    A contamination event at a UK water pumping station was successfully detected by the Chelsea Technologies FASTtracka II system. The event was automatically detected using the FASTtracka II, Fast Repetition Rate (FRR) chlorophyll a fluorometer combined with a novel Red, Amber, Green (RAG) algorithm, which has been developed to provide continuous, real-time protection for water supplies at the ...

  • LG Sound proudly presents: Interactive Algae Control

    The patented LG Sonic MPC combines online water quality monitoring, telemetring and ultrasound technology to provide the state-of-the-art treatment against algae and cyanobacteria. By constantly measuring water quality,  the LG Sonic MPC determines the most optimal ultrasonic program. LG Sonic algae control - With a radius of 360 degrees and a range of 500 meter ...


    By LG Sonic

  • Trees could be used to monitor air pollution simply and cheaply

    It may be possible to use trees to monitor levels of air pollution in cities, new research suggests. A Belgian study found evidence that leaves of urban trees change both chemically and physiologically when exposed to different levels of air pollution. If these changes are carefully quantified, trees could provide cheap and widespread ‘bio-indicators’, the study’s authors ...

  • Spectrophotometers Spectroquant® Pharo – Benefit from new features in the latest software version

    Merck’s Spectroquant® Pharo 100 and 300 spectrophotometers combine the benefits of system photometers with the versatility of spectrophotometers and open up the possibilities for water and food analysis. The latest software version v 2.03 provides new methods for the Pharo instruments and can be easily downloaded from ...


    By Merck Millipore

  • New submersible logger for Turner Designs Cyclops-7 Sensor provides in situ monitoring

    Turner Designs Cyclops-7 Sensors include Blue Green Algae, CDOM/FDOM, Chlorophyll, Crude Oil, Fluorescein Dye, Optical Brighteners, Tryptophan, Refined Fuels, Rhodamine WT Dye, Turbidity Precision Measurement Engineering, Inc. (PME), an internationally known freshwater instrument design corporation is proud to announce the release of the Cyclops-7 Logger, a submersible, portable device that ...

  • Nitrogen recommendations based on crop reflectance

    Nitrogen fertilizer is usually applied in greater quantities to corn than almost any other crop. But when it’s applied in excess of requirements, loss of the excess fertilizer to the environment can contribute to degraded water quality. One of the challenges to making an appropriate nitrogen fertilizer recommendation is the potential variability in soil nitrogen availability that may occur ...

  • LG Sonic introduces Depth, GPS and Solar Radiation sensors for better algae prediction

    LG Sonic introduces a water level sensor to measure the depth of water reservoirs, and a pyranometer to measure sun radiation. Furthermore, LG Sonic has decided to incorporate a GPS sensor in their algae control system, the MPC-Buoy, in order to determine the exact location of each system accurately. The sensors can be integrated into the ...


    By LG Sonic

  • The Chelsea Mariner Shuttle for Large Marine Ecosystem Monitoring

    The new Chelsea Mariner Nu-Shuttle is based on the successful Nu-Shuttle towed oceanographic vehicle. It is a generic, robust monitoring system designed for regular monitoring of large marine ecosystems. Undulating behind a research vessel or ship of opportunity it enables a wide range of oceanographic measurements to be made underway from the surface to depths in excess of 150 metres. ...


    By Chelsea Technologies Group

  • Mixing processes below evaporation reduction covers - a use for the scamp and MSCTI

    Researchers from the Griffith School of Engineering at Griffith University in Australia are assessing a variety of methods for reducing the rate of evaporation. These methods include the implementation of a water cover and chemical films.PME’s MicroScale Conductivity and Temperature Instrument (MSCTI) and the Self Contained Autonomous MicroProfiler (SCAMP) are being used study mixing dynamics in ...

  • New portable water quality profilers

    Xylem Analytics has announced the launch of a new range of portable multiparameter water quality meters that have been designed for spot measurements and profiling of pH, ORP, conductivity, temperature, depth and optical dissolved oxygen, in both marine and freshwater applications. The new WTW MPP 900 IDS Multiparameter Sondes are able to take measurements at depths of up to 100m because of the ...


    By Xylem Analytics

  • World`s largest solar ship docks in Halifax, Canada

    The world's largest solar-powered catamaran, PlanetSolar, has arrived in Halifax Canada after an 11-day journey from Boston-the latest leg in a series of scientific missions. The MS Tûranor PlanetSolar in 2012 completed the first solar-powered trip around the world after 584 days and 60,000 kilometres. After setting out again in April this year, the vessel has travelled from Spain to the ...

  • EPA Releases Scientific Report Showing U.S. Coastal Waters a Mix of Good and Fair Health

    Biological Quality is rated good in 56% of coastal and Great Lakes nearshore waters. Healthy communities of bottom-dwelling macroinvertebrates (such as worms and clams), which are indicators of biological quality, are supported in these waters. Water Quality is rated fair in 48% of coastal and Great Lakes waters and good in 36% when measuring phosphorus, nitrogen, water clarity, chlorophyll a, ...

  • Revolutionary ultrasonic Algae and Cyanobacteria control with the smart LG Sonic MPC-BUOY (Monitor-Predict-Control)

    The patented LG Sonic MPC ensures fast and efficient algae control by combining online water quality monitoring, telemetering and ultrasound technology to provide the state-of-the-art treatment against algae and cyanobacteria in ponds, lakes and dams. As algae types change during seasons, the ultrasonic treatment needs to be adjusted accordingly. To remain highest efficiency, the new interactive ...


    By LG Sonic

  • Voyage to Southern Ocean to monitor greenhouse gas air-sea fluxes

    Scientists have set off from the Chilean port of Punta Arenas to spend 42 days amid the high winds and big waves of the Southern Ocean, where they will make groundbreaking measurements to explain how large amounts of climate-affecting gases move between atmosphere and sea, and vice-versa. The cruise should provide important information on factors controlling the flux of the greenhouse gas carbon ...

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