Comparison of ozone fluxes over grassland by gradient and eddy covariance technique
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چکیده
منابع مشابه
Correcting eddy-covariance flux underestimates over a grassland
Independent measurements of the major energy balance flux components are not often consistent with the principle of conservation of energy. This is referred to as a lack of closure of the surface energy balance. Most results in the literature have shown the sum of sensible and latent heat fluxes measured by eddy covariance to be less than the difference between net radiation and soil heat fluxe...
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Abstract. Eddy correlation measurements of CO2 fluxes over grassland on peat soil were performed from April to October 1994. In this article the measurement system is described and some results are discussed. The closed path system was compared with an open path eddy correlation system developed at the Royal Netherlands Meteorological Institute (KNMI) in December 1994. Fluxes deduced from the r...
متن کاملEddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF.
Eddy covariance (EC) is the preferable technique for flux measurements since it is the only direct flux determination method. It requires a continuum of high time resolution measurements (e.g. 5-20 Hz). For volatile organic compounds (VOC) soft ionization via proton transfer reaction has proven to be a quantitative method for real time mass spectrometry; here we use a proton transfer reaction t...
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Introduction Conclusions References
متن کاملEddy covariance measurement of NOyi fluxes by TD-LIF
Application of thermal dissociation-laser induced fluorescence (TD-LIF) to measurement of HNO3, Σalkyl nitrates, Σperoxy nitrates, and NO2 fluxes using eddy covariance D. K. Farmer, P. J. Wooldridge, and R. C. Cohen Department of Chemistry; University of California, Berkeley, CA, 94720, USA Dept. of Earth and Planetary Science; University of California, Berkeley, CA, 94720, USA Received: 22 Dec...
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ژورنال
عنوان ژورنال: Atmospheric Science Letters
سال: 2009
ISSN: 1530-261X,1530-261X
DOI: 10.1002/asl.226