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タイトルOpen-path tunable diode laser absorption for eddy correlation flux measurements of atmospheric trace gases
著者（英）Zahniser, Mark S.; Anderson, Stuart M.
著者所属（英）NASA Ames Research Center
発行日1991-01-01
言語eng
内容記述Biogenic emissions from and dry deposition to terrestrial surfaces are important processes determining the trace gas composition of the atmosphere. An instrument has been developed for flux measurements of gases such as CH4, N2O, and O3 based on the eddy correlation technique which combines trace gas fluctuation measurements with simultaneous windfield measurements. The instrument combines a tunable diode laser infrared light source with an open-path multipass absorption cell in order to provide the fast time response and short base pathlength required for the eddy correlation method. Initial field tests using the instrument to measure methane emissions from a local wetland demonstrate the capability for high precision eddy correlation flux measurements.
NASA分類INORGANIC AND PHYSICAL CHEMISTRY
レポートNO92A52170
権利Copyright


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