منابع مشابه
Chemically-resolved aerosol eddy covariance flux measurements
Introduction Conclusions References
متن کاملEddy covariance methane flux measurements over a grazed pasture
Introduction Conclusions References Tables Figures
متن کاملFirst eddy covariance flux measurements by PTR-TOF.
The recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method. The high time resolution of the PTR-TOF allowed storing full mass spectra up to m/z 315 with a frequency of 10 Hz. Three isobaric ions were found at a nominal mass of m/z 33 due to the high mass resolving power of the PTR-TOF. Only one of the three peaks c...
متن کاملDealing with disjunct concentration measurements in eddy covariance applications: a comparison of available approaches.
Using proton transfer reaction mass spectrometry equipped with a quadrupol mass analyser to quantify the biosphere-atmosphere exchange of volatile organic compounds (VOC), concentrations of different VOC are measured sequentially. Depending on how many VOC species are targeted and their respective integration times, each VOC is measured at repeat rates on the order of a few seconds. This repres...
متن کاملDisjunct Eddy Covariance Measurements of Volatile Organic Compound Fluxes Using Proton Transfer Reaction Mass Spectrometry
Volatile organic compounds (VOCs) are emitted into the atmosphere from natural and anthropogenic sources, vegetation being the dominant source on a global scale. Some of these reactive compounds are deemed major contributors or inhibitors to aerosol particle formation and growth, thus making VOC measurements essential for current climate change research. This thesis discusses ecosystem scale VO...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2001
ISSN: 0094-8276
DOI: 10.1029/2001gl012900