Flux Measurements
True eddy accumulation trace gas flux measurements: proof of concept
... total flux to its components ...turbulent flux density measurements relative in their ability to approximate the net ecosystem ...available flux observations are restricted to the turbulent ...
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Bayesian inferences of the thermal properties of a wall using temperature and heat flux measurements
... in-situ measurements of temperature and heat flux over extended time ...with measurements recorded every minute from temperature probes and heat flux sensors placed on both sides of a solid ...
25
Gradient flux measurements of sea–air DMS transfer during the Surface Ocean Aerosol Production (SOAP) experiment
... Direct measurements of marine dimethylsul- fide (DMS) fluxes are sparse, particularly in the South- ern ...and flux of DMS in a biologically active frontal system in the southwest Pacific .... ...
17
Flux measurements and maintenance energy for carbon dioxide utilization by Methanococcus maripaludis
... mental flux measurements to accurately predict intracel- lular metabolic fluxes ...intracellular flux measurements are difficult because 13 C NMR labeling is usually required ...
9
Development of a Gaseous Proton-Recoil Detector for neutron flux measurements between 0.2 and 2 MeV neutron energy
... Absolute measurements of neutron fluence are an essential prerequi- site of neutron-induced cross section measurements, dosimetric investigations and neutron beam lines ...neutron flux ...
7
Quantifying the impact of emission outbursts and non stationary flow on eddy covariance CH4 flux measurements using wavelet techniques
... Methane flux measurements by the eddy- covariance technique are subject to large uncertainties, par- ticularly linked to the partly highly intermittent nature of methane ...the flux ...
19
Uncertainty of eddy covariance flux measurements over an urban area based on two towers
... the flux field caused by complex ...of flux measurements resulting from instrumental er- rors, heterogeneity of the surface and turbulence has been de- termined using the so-called two-tower approach ...
18
Remotely sensed dune celerity and sand flux measurements of the world's fastest barchans (Bodele, Chad)
... sand flux at the dune crest of >200 m 3 /m/yr. Average dune sand flux values for the eastern and western Bode´le´ are 76 and 99 m 3 /m/yr, ...sand flux is 24 – 29 m 3 /m/yr, which is 10% of the ...
8
Motion-correlated flow distortion and wave-induced biases in air-sea flux measurements from ships
... momentum flux estimates from a ship to be 18 % higher than estimates from a nearby air–sea interaction spar ...direct flux measurements from the most recent update of the COARE bulk air–sea ...
11
Perfusion assessment in rat spinal cord tissue using photoplethysmography and laser Doppler flux measurements
... Doppler flux measurements at the two frequency ranges described in methods together with the mean amplitude, stan- dard deviation (SD) from the mean amplitude, and coefficient of variability (CV) for all ...
10
Quantitative local photosynthetic flux measurements at isolated chloroplasts and thylakoid membranes using scanning electrochemical microscopy (SECM)
... localized flux measurements in biological processes, in this case photosynthesis, and, that the high time resolution, combined with FEM simulations, allows the elucidation of quantitative kinetic ...
41
Characterizing Soil Fertility by Ion Diffusive Flux Measurements
... An exchange resin paper method measurement of the diffusive flux and diffusion coefficient of nutrient ions in soil.. H., The measurement and mechanism of ion.[r] ...
11
PREPARATION AND CALIBRATION OF CO60 STANDARDS FOR INTEGRATED THERMAL FLUX MEASUREMENTS EUR 422 e
... Derivation of the integrated thermal flux from the induced activity by the standard method proposed by Motte The integrated thermal neutron flux I = J 0 t dt is obtained in the induced a[r] ...
26
Usage of multiple fission cells for neutron flux measurements during rod-insertion method
... associated flux depression factor - for the compensating control rod (C) such value amounts to 2707 ...to measurements with any single fission ...quick measurements of the integral and differential ...
5
Accurate Magnetic Flux Measurements in Electromagnetic Rail Launchers
... the flux uncertainty because it can directly evaluate the systematic effects on each channel, based on the comparison among measurements obtained by several independent ...the flux uncertainty is ...
14
Automated chamber technique for gaseous flux measurements: evaluation of a photoacoustic infrared spectrometer-trace gas analyzer
... Measurements of the TGA signals for N20 , CH4, and CO• produced at the various water vapor concentrations (ranging between 0 and 30000 ppm water vapor) were then made (Figure 2). W[r] ...
8
Environmental controls on seasonal ecosystem evapotranspiration/potential evapotranspiration ratio as determined by the global eddy flux measurements
... The leaf area index (LAI) time series data for each tower site were downloaded from the Oak Ridge National Labora- tory Distributed Active Archive Center (http://daac.ornl.gov/ cgi-bin/MODIS/GR_col5_1/mod_viz.html). ...
12
Reconstruction of the timewise conductivity using a linear combination of heat flux measurements
... The reconstruction of conductivity and temperature from the non-local linear combination of heat flux over-determination (5) has been achieved numerically by employing the ADE, as a direct solver, implemented in a ...
6
Standardisation of eddy-covariance flux measurements of methane and nitrous oxide
... be highly variable spatially, however, and it has been esti- mated that many tens of flux chambers would be required to provide a robust representation of the field-scale emission (Levy et al., 2017). Whilst such ...
39
Possible errors in flux measurements due to limited digitalization
... NEE measurements at the Waldstein-Weidenbrunnen site in December 2012 (original 16 bit digi- talization) with synthetic data with 12 bit digitalization for the gas analyser and the instrument error (w offset) of ...
6