Webinar Archive

In this webinar we address some important considerations for designing chambers for gas-exchange measurements. The information presented will be particularly relevant to users looking to design custom chambers for the LI-6400XT or LI-8100, or those building gas exchange systems around any of LI-COR Biosciences stand alone gas analyzers. Topics covered will address potential design pitfalls and resulting measurement errors, in an effort to provide users a frame work for optimizing their custom chamber designs.

It's easy with the right Strategy! By providing your students with research grade instrumentation, you will be encouraging them to ask questions and providing them the means to find answers. This webinar will discuss what to look for in instrumentation, how to find funding for these instruments, and most importantly how to use them successfully in the classroom (including classroom setup and strategies, as well as specific laboratory activities). We will look at how other innovative institutions (large and small) have been successful at incorporating instruments, and how they solved challenges along the way. Focus will be on instrumentation for Biology and Ecology courses.

LI-6400XT Users Unite! This webinar has been designed to help users get the most out of their LI-6400XT. You are certain to come away with new insight. Will focus on ten quick tips for improving your use of the LI-6400XT Portable Photosynthesis System.

Wavelength Modulation Spectroscopy (WMS) is an established spectroscopic technique that LI-COR has implemented in the new LI-7700 Open Path Methane Analyzer. Recent advances in laser technology and engineering have enabled the use of WMS for this instrument. There are several distinct advantages that WMS provides for trace gas measurements, including the ability to operate at ambient pressure with a short optical path and still produce a strong signal with low noise. This webinar will discuss the WMS technique and how it is implemented in the LI-7700. We will also discuss the advantages that WMS brings to field measurements of methane concentrations and fluxes.

LI-COR is introducing a new high speed, high precision methane analyzer. This new open-path design provides a weatherized field ready solution with low power consumption that allows the user to make stable long term measurements of CH₄ densities for atmospheric research and for eddy covariance measurements. Unlike other methane analyzers, the LI-7700 uses Wavelength Modulation Spectroscopy which allows for a high speed measurement that can be made at ambient pressure. This webinar will introduce the new LI-7700 analyzer and explain how it has been designed for deployment anywhere that methane fluxes or concentrations need to be measured.

The LAI-2200 can be used in many canopy types including forests, grasslands, row crops, hedges, and isolated trees. The webinar will focus on the terminology and theory behind the LAI-2200 including an explanation on The Gap Fraction Method. Explanations on the difference between the LAI-2200 calculations, Ceptometry and Hemispherical Measurements will also be discussed.

Both closed-path and open-path gas analyzers offer unique advantages for making eddy-covariance measurements. This new 'enclosed open-path' design provides a weatherized solution with low power consumption, allowing the user to make stable long-term measurements of CO₂ and H₂O densities. We will explain how the new LI-7200 combines the best performance features from both closed-path and open-path gas analyzers for making flux measurements.

Both closed-path and open path CO₂/H₂O analyzers are widely used to measure the CO₂ and H₂O flux between an ecosystem and the atmosphere with the eddy-covariance technique. This webinar will discuss their strengths, advantages and different data processing procedures for the each type of analyzer when used for flux measurements.

Photosynthesis consists of gathering light energy and then using that energy to fix carbon dioxide. Measuring fluorescence enables further exploration of both the light and dark reactions of photosynthesis. Perform simultaneous Gas Exchange and Fluorescence measurements over the same leaf area.

Discussion of the technologies available to effectively monitor CO₂ at the surface or in the air. Case studies where such technologies are used today.

A simple method of rapidly sampling CO₂ fluxes from multiple samples, and tracking fluxes over a desired period of time. Examples include respiration of detached fruit or attached leaves and fruit, monitoring single or multiple insect or animal respiration and small or isolated soil sample respiration.