Results 41 to 50 of about 7,453 (161)
Measuring the biosphere-atmosphere exchange of total reactive nitrogen by eddy covariance [PDF]
Biogeosciences, 2012 The (net) exchange of reactive nitrogen (N<sub>r</sub>) with the atmosphere is an important driver for ecosystem productivity and greenhouse gas exchange.
C. Ammann +4 more
doaj +1 more source
Land, 2021 Forest carbon sequestration offset protocols have been employed for more than 20 years with limited success in slowing deforestation and increasing forest carbon trading volume. Direct measurement of forest carbon flux improves quantification for trading
Nahuel Bautista +2 more
doaj +1 more source
Artificial intelligence and Eddy covariance: A review
Science of The Total EnvironmentThe Eddy Covariance (EC) method allows for monitoring carbon, water, and energy fluxes between Earth's surface and atmosphere. Due to its varying interdependent data streams and abundance of data as a whole, EC is naturally suited to Artificial Intelligence (AI) approaches.
Lucarini, Arianna +4 more
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Tolerance of eddy covariance flux measurement
Hydrological Research Letters, 2011 Eddy covariance (EC) flux measurement is the most-used technique for observation of the fluxes of sensible heat, latent heat, and carbon dioxide between the land surface and the atmospheric boundary layer. Despite the availability of plentiful EC data from numerous research projects, it is difficult to make meaningful comparisons of EC at different ...
Kim, Wonsik +6 more
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Eddy covariance for quantifying trace gas fluxes from soils [PDF]
SOIL, 2015 Soils are highly complex physical and biological systems, and hence measuring soil gas exchange fluxes with high accuracy and adequate spatial representativity remains a challenge. A technique which has become increasingly popular is the eddy covariance (
W. Eugster, L. Merbold
doaj +1 more source
Eddy Covariance flux measurements with a weight-shift microlight aircraft [PDF]
Atmospheric Measurement Techniques, 2012 Abstract. The objective of this study is to assess the feasibility and quality of Eddy-Covariance flux measurements from a weight-shift microlight aircraft (WSMA). Firstly we investigate the precision of the wind measurement (σu,v≤ 0.09 m s−1, σw = 0.04 m s−1), the lynchpin of flux calculations from aircraft.
Metzger, S. +6 more
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Land surface model performance using cosmic-ray and point-scale soil moisture measurements for calibration [PDF]
Hydrology and Earth System Sciences, 2017 At very high resolution scale (i.e. grid cells of 1 km2), land surface model parameters can be calibrated with eddy-covariance flux data and point-scale soil moisture data.
J. Iwema +6 more
doaj +1 more source
Comparison of eddy covariance and modified Bowen ratio methods for measuring gas fluxes and implications for measuring fluxes of persistent organic pollutants [PDF]
Atmospheric Chemistry and Physics, 2016 Semi-volatile persistent organic pollutants (POPs) cycle between the atmosphere and terrestrial surfaces; however measuring fluxes of POPs between the atmosphere and other media is challenging.
D. J. Bolinius +3 more
doaj +1 more source
Reviews and syntheses: Eddy covariance-based evapotranspiration partitioning [PDF]
BiogeosciencesThe task of reliably partitioning evapotranspiration (ET) is imperative so that we can better understand how individual components of the terrestrial water flux are contributing to the global hydrological cycle and changing under a warming climate.
E. G. Cochran +2 more
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Estimating the storage term in eddy covariance measurements: the ICOS methodology
International Agrophysics, 2018 Abstract In eddy covariance measurements, the storage flux represents the variation in time of the dry molar fraction of a given gas in the control volume representative of turbulent flux. Depending on the time scale considered, and on the height above ground of the measurements, it can either be a major component of the overall net ecosystem exchange ...
Montagnani, L. +7 more
openaire +6 more sources