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Methane, Carbon Dioxide, & Nitrous Oxide Measurements with LI-COR LI-7810, LI-7815, and LI-7820 Trace Gas Analyzers


The LI-7810 CH4/CO2/H2O and the LI-7820 N2O/H2O Trace Gas Analyzers, combined with suitable chambers, give researchers accurate measurements of greenhouse gas soil fluxes in a range of environments and conditions. The LI-7810, LI-7815, and LI-7820 utilize Optical Feedback Cavity Enhanced Absorption Spectroscopy (OF-CEAS), which delivers fast, reliable flux measurements even when fluxes are low.

Presenting the results of a one-year field study using the LI-7810 and LI-7820 with the LI-8250 Multiplexer and four 8200-104 long term chambers, Principal Scientist and European Manager Graham Leggett will highlight nitrous oxide soil flux measurements. Since N2O flux is low in natural ecosystems for much of the year, the results demonstrate the automated calculation of minimal detectable flux as low as 0.05 nmol m-2s-1.

The high-precision, low-drift, and fast gas response of LI-COR Trace Gas Analyzers make them suitable for a range of applications beyond soil flux measurements. The webinar will briefly highlight recent research, including a six-month study of atmospheric methane and carbon dioxide at the Mace Head Atmospheric Research Station in Ireland.