photosynthesis measurement News

  • Latest FastOcean Sensor used at photosynthesis algorithm evaluation workshop

    Dr Kevin Oxborough participated in a workshop at the NIOZ labs in Yerseke, The Netherlands. The aim of the workshop was to validate a recently published algorithm (Oxborough et al. 2012, Limnology and Oceanography: Methods) that permits accurate estimates of the concentration of PSII reaction centres from active fluorometers. ...


    By Chelsea Technologies Group

  • LI-COR Upgrades Photosynthesis Platform With New LI-6400XT

    Lincoln, Nebraska: LI-COR Biosciences introduces the new LI-6400XT Portable Photosynthesis System with faster processor, support for flash memory, and Ethernet connectivity. The LI-6400 platform is a proven performer and the most cited photosynthesis instrument in scientific literature. The LI-6400 XT upgrade offers researchers additional flexibility for handling data and an upgrade path for ...


    By LI-COR

  • 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

  • New insights into plant uptake of carbonyl sulfide aid global carbon cycle model

    In a study published in Science on 14 November, NOAA and CIRES scientists and colleagues show that carbonyl sulfide (COS), a trace gas consumed by plants, provides quantitative evidence that gradients of COS during the growing season are controlled by plant uptake during photosynthesis. This in turn provides an independent measure of plant photosynthesis rates crucial for carbon cycle modeling, a ...

  • A new leaf turns in carbon science

    A new insight into global photosynthesis, the chemical process governing how ocean and land plants absorb and release carbon dioxide, has been revealed in research that will assist scientists to more accurately assess future climate change. In a paper published today in Nature, a team of US, Dutch and Australian scientists have estimated that the global rate of photosynthesis, the ...

  • Biofuels studies to benefit from better lab test

    Thank sunlight, algae and green plants for the air we breathe, the food we eat and, in the not-too-distant future, the fuels that power our trips by plane, rail and automobile. In a process that is as complex as it is elegant, as breathtaking as it is breath-making, sunlight excites electrons in plant cells setting off a chain reaction that rips apart water to release oxygen and then changes ...

  • Research on Soil Chamber Pressure Published in Journal of Geophysical Research

    LINCOLN, NEBRASKA - LI-COR Senior Application Scientist Liukang Xu, Ph.D., led a group of LI-COR scientists and engineers in a research effort to examine pressure effects on chamber-based soil CO2 flux measurements. The results of this study were recently published in the Journal of Geophysical Research (JGR), an American Geophysical Union publication. Findings of the research show that ...


    By LI-COR

  • LGR Launches Unique Gas Analyzer for Quantitative Detection of Carbonyl Sulfide (OCS) Anywhere

    Los Gatos Research (LGR), the leader in precision trace gas analyzers, has launched an ultra-sensitive analyzer that provides real-time, direct and automated measurement of carbonyl sulfide (OCS or COS) in ambient air samples with parts-per-trillion precision and at rates as fast as 10 Hz. This new OCS Analyzer also provides simultaneous measurements of carbon monoxide (CO), carbon dioxide (CO2) ...

  • Even soil feels the heat

    Twenty years of field studies reveal that as the Earth has gotten warmer, plants and microbes in the soil have given off more carbon dioxide. So-called soil respiration has increased about one-tenth of 1 percent per year since 1989, according to an analysis of past studies in this week's issue of Nature. The scientists also calculated the total amount of carbon dioxide flowing from soils, which ...

  • 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

  • LI-COR Introduces New Multiplexer for Automated Soil CO2 Studies

    Lincoln, Nebraska: LI-COR Biosciences now offers an automated solution for assessing spatial as well as temporal variability in CO2 flux. The new LI-8150 Multiplexer expands the capabilities of the company’s LI-8100 Automated Soil CO2 Flux System by allowing up to 16 chambers to be controlled by a single LI-8100 Analyzer Control Unit. The LI-8100 is an economical and lightweight system for ...


    By LI-COR

  • LI-COR Expands Availability of Environmental Research Tools

    As the demand for atmospheric monitoring, world food production, and water quality continue to increase, the demand for research-grade instrumentation worldwide also increases. LI-COR continues to look for ways to provide scientists worldwide the instrumentation necessary to answer their research questions. LI-COR uses a worldwide network of distributors to sell and support its complete ...


    By LI-COR

  • Rainforest monitoring network deployed in Amazon

    Using open-access software and power saving technologies, researchers have developed an easily deployed, low-cost network for monitoring large areas of the Amazon rainforest. This Peruvian study shows that environmental information, such as soil moisture and rates of photosynthesis, can be recorded and uploaded to the internet without having to make repeated visits to remote areas. The Amazon ...

  • Ocean pH value decreasing

    A research project into ocean acidification has increased knowledge about conditions in the Baltic Sea and Kattegat-Skagerrak. When the pH value falls, the whole marine ecosystem is affected. A newly developed measurement technique provides information about natural variations in the oceans, which results in improved environmental monitoring. Since 1850 the pH value of the world’s ...

  • Chelsea’s expert on active fluorescence techniques presents at Challenger Society of Marine Science Biennial Conference

    Chelsea Technologies Group will once again be exhibiting and presenting at the Challenger Society of Marine Science Biennial Conference ...


    By Chelsea Technologies Group

  • CAS DataLoggers offers new multipurpose co2 logger

    CAS DataLoggers and T&D have teamed to offer customers an ideal solution for monitoring indoor air quality and HVAC&R system performance: the new TR-76Ui CO2 + Temperature + Humidity Logger. This low-cost 3-in-1 datalogger is now available in two versions: the TR-76Ui with T&D’s standard temperature and humidity specifications, and the TR-76UiH which is designed for laboratory ...


    By CAS DATALOGGERS

  • Scientists hone technique to safeguard water supplies

    A method to detect contaminants in municipal water supplies has undergone further refinements by two Oak Ridge National Laboratory researchers whose findings are published on line in Water Environment Research. The new work demonstrates that the technology that uses algae as sentinels has broader applications than previously reported, according to authors Miguel Rodriguez Jr. and Elias Greenbaum ...


    By ScienceDaily

  • Ultra-sensitive and fast detection of BVOC emissions with IONICON PTR-TOF

    Detection of Plant Volatiles after Leaf Wounding and Darkening by Proton Transfer Reaction ‘‘Time-of-Flight’’Mass Spectrometry (PTR-TOF) A new study published yesterday, where IONICON PTR-TOFMS was used to detect biogenic volatile organic compounds (BVOCs) induced by leaf wounding and darkening, shows the huge potential of PTR-MS for monitoring and quantification of  ...


    By Ionicon Analytik Ges.m.b.H.

  • Long term data for monitoring climate change

    Nearly 30 years of sampling data demonstrate that rural locations can be used to monitor greenhouse gases (GHGs), even in a densely populated continent such as Europe. The data have been used to explore how vegetation affects GHG emissions. Urban and industrial settings are unsuitable for measuring global trends in levels of GHGs as there are many local sources of emissions which can affect the ...

  • LI-COR Biosciences Announces New Long-Term Chamber for the LI-8100

    LI-COR announces the addition of a second long-term chamber for its LI-8100 Automated Soil CO2 Flux System.  The 8100-104 Long-Term Chamber can be used in both single or multiple chamber applications. Up to 16 long term chambers can be sampled when connected to the LI-8150 Multiplexer.  ...


    By LI-COR

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