Eddy covariance
Estimation of carbon fluxes from eddy covariance data and satellite-derived vegetation indices in a karst grassland (Podgorski Kras, Slovenia)
... there are some problems related to the eddy covariance method. The main problem is the occurrence of gaps in the data, which need to be filled by statistical regressions with different methods. Gaps occur ...
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Measurements of diurnal variations and eddy covariance (EC) fluxes of glyoxal in the tropical marine boundary layer: description of the Fast LED-CE-DOAS instrument
... the eddy covariance flux method was applied to our water absorption data and water fluxes were derived in the same manner as that for the glyoxal ...
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A compact and stable eddy covariance set-up for methane measurements using off-axis integrated cavity output spectroscopy
... A DLT-100 Fast Methane Analyser (FMA) from Los Gatos Research (LGR) Ltd. is as- sessed for its applicability in a closed path eddy covariance field set-up. The FMA uses off-axis integrated cavity output ...
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Four-year (2006–2009) eddy covariance measurements of CO<sub>2</sub> flux over an urban area in Beijing
... using the eddy covariance (EC) method in Beijing, China over a 4-yr period in 2006–2009. The EC setup was installed at a height of 47 m on the Beijing 325-m meteorological tower in the northwest part of the ...
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Chemically-resolved aerosol eddy covariance flux measurements in urban Mexico City during MILAGRO 2006
... A substantial fraction of particulate pollution is produced by industry and transportation in urban areas and is recog- nized to influence regional and global atmospheric chemistry (Lawrence et al., 2007). Anthropogenic ...
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Eddy covariance flux measurements of ammonia by high temperature chemical ionisation mass spectrometry
... Relaxed Eddy Accumulation technique, Bio- geosciences, 6, 2575–2588, ...in eddy covariance applications: A compari- son of available approaches, ...
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Eddy covariance measurements and parameterisation of traffic related particle emissions in an urban environment
... time period 0.87 m s −1 . The atmosphere was unstable with the Obukhov length being −353 m. On average, the particle counter was measuring 7×10 3 particles cm −3 with a standard deviation of 2×10 3 cm −3 . Averaged wind ...
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Quality control of CarboEurope flux data – Part 2: Inter-comparison of eddy-covariance software
... Nevertheless, a common agreement about the processing of eddy covariance fluxes should be aspired within the CarboEurope-IP network, possibly based on the recom- mendations of Lee et al. (2004). Large ...
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The effect of hygroscopicity on eddy covariance estimates of sea-spray aerosol fluxes: a comparison of high-rate and bulk correction methods
... is the vertical velocity and the prime indicates a perturba- tion from the mean) will, on average, have a higher relative humidity than downward moving parcels. As sea-spray re- sponds rapidly to RH fluctuations, a ...
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Suitability of quantum cascade laser spectroscopy for CH<sub>4</sub> and N<sub>2</sub>O eddy covariance flux measurements
... field site. The required criteria for eddy covariance flux mea- surements including continuity, sampling frequency, preci- sion and stationarity were examined. The system operated continuously at a dairy ...
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Comparative measurements of water vapor fluxes over a tall forest using open- and closed-path eddy covariance system
... the eddy co- variance technique is ...path eddy covariance systems have different errors and bi- ...optimized covariance maximization method slightly decrease the annual evapo- transpiration ...
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Satellite-based estimates of light-use efficiency in a subtropical mangrove forest equipped with CO<sub>2</sub> eddy covariance
... 30-m eddy covariance tower is co-located with long-term monitoring sites oper- ated by the Florida Coastal Everglades Long Term Ecological Research (FCE LTER, site SRS6) program and the US Geological Survey ...
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Methane fluxes measured by eddy covariance and static chamber techniques at a temperate forest in central ontario, Canada
... Measurements from the static chambers can help to shed light on the observed sea- sonal progression fluxes measured from the tower, with the lowest net uptake observed in June and July (Table 1). Figure 7 compares the ...
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Mixing ratios and eddy covariance flux measurements of volatile organic compounds from an urban canopy (Manchester, UK)
... direct eddy covariance measurements is the reduced number of data points used for the flux cal- culation, which results in an increase in the statistical uncertainty of the ...
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Peach orchard evapotranspiration in a sandy soil: comparison between eddy covariance measurements and estimates by the FAO 56 approach
... The evapotranspiration from a 3 to 4 years old drip irrigated peach orchard, located in central Portugal, was measured using the eddy covariance technique during two irrigation seasons, allowing the ...
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Evaluating the performance of commonly used gas analysers for methane eddy covariance flux measurements: the InGOS inter-comparison field experiment
... from the measurement mast (see Fig. 1). The landscape is relatively flat and level, making the area ideal for micrometeorological flux measurements. The eddy covari- ance measurement tower was approximately 87 m ...
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Multi-season eddy covariance observations of energy, water and carbon fluxes over a suburban area in Swindon, UK
... favours turbulent sensible heat during summer (midday Bowen ratio 1.4–1.6) and latent heat in winter (0.05–0.7), a significant proportion of energy is stored (and released) by the urban [r] ...
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Evaluation of a plot-scale methane emission model using eddy covariance observations and footprint modelling
... (Schmid, 2002) because – as stated by Foken and Leclerc (2004) – artificial tracer validation experiments are too ex- pensive. Many validation studies, therefore, compare ana- lytical models to Lagrangian stochastic ...
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Eddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF
... Table 4. VOC fluxes after removal of cut grass during a sunny day between 08:00 CET on 7 August and 08:00 CET on 8 August in 2009 in Neustift, Stubai valley. Fluxes were calculated from the 30-min concentration and wind ...
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Eddy covariance methane flux measurements over a grazed pasture: effect of cows as moving point sources
... erage years, 3.6 ha of pasture is approximately sufficient to feed 20 dairy cows by rotational grazing during the early season. The cold and wet spring in 2013 negatively influ- enced the productivity of the pasture. ...
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