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A Comparison Assessment of Measuring Evapotranspiration in Egypt [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2021
Scarce water resources management makes accurate measurements of different parameters of water requirements very critical. Therefore, the values for crop evapotranspiration and crop water requirement are identical.
M. Ibrahim   +3 more
doaj   +1 more source

Methane emissions from an oil sands tailings pond: a quantitative comparison of fluxes derived by different methods [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Tailings ponds in the Alberta oil sands region are significant sources of fugitive emissions of methane to the atmosphere, but detailed knowledge on spatial and temporal variabilities is lacking due to limitations of the methods deployed under current ...
Y. You   +5 more
doaj   +1 more source

Low-cost eddy covariance: a case study of evapotranspiration over agroforestry in Germany [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
Heterogeneous land surfaces require multiple measurement units for spatially adequate sampling and representative fluxes. The complexity and cost of traditional eddy covariance (EC) set-ups typically limits the feasible number of sampling units ...
C. Markwitz, L. Siebicke
doaj   +1 more source

Flux calculation of short turbulent events – comparison of three methods [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
The eddy covariance method is commonly used to calculate vertical turbulent exchange fluxes between ecosystems and the atmosphere. Besides other assumptions, it requires steady-state flow conditions.
C. Schaller, M. Göckede, T. Foken
doaj   +1 more source

Calculating canopy stomatal conductance from eddy covariance measurements, in light of the energy budget closure problem [PDF]

open access: yesBiogeosciences, 2021
Canopy stomatal conductance is commonly estimated from eddy covariance measurements of the latent heat flux (LE) by inverting the Penman–Monteith equation.
R. Wehr, S. R. Saleska
doaj   +1 more source

First eddy covariance flux measurements by PTR-TOF [PDF]

open access: yesAtmospheric Measurement Techniques, 2010
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 <i>m/z</i> 315 with a
M. Müller   +10 more
doaj   +1 more source

InnFLUX – an open-source code for conventional and disjunct eddy covariance analysis of trace gas measurements: an urban test case [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
We describe and test a new versatile software tool for processing eddy covariance and disjunct eddy covariance flux data. We present an evaluation based on urban non-methane volatile organic compound (NMVOC) measurements using a proton transfer reaction ...
M. Striednig   +4 more
doaj   +1 more source

Estimation of Sensible and Latent Heat Fluxes Using Flux Variance Method under Unstable Conditions: A Case Study of Tea Plants

open access: yesAtmosphere, 2022
Evapotranspiration is essential for precise irrigation and water resource management. Previous literature suggested that eddy covariance (EC) systems could directly measure evapotranspiration in agricultural fields.
Noman Ali Buttar   +10 more
doaj   +1 more source

Analyzing the Areas Contributing to Evapotranspiration Measured from the Eddy Covariance System in a Winter Wheat Field

open access: yesGuan'gai paishui xuebao, 2021
【Background and objective】 Evapotranspiration from managed and natural ecosystems is an important process in hydrological cycle but not trivial to measure at large scales.
XIE Jing   +3 more
doaj   +1 more source

Technical note: Novel triple O2 sensor aquatic eddy covariance instrument with improved time shift correction reveals central role of microphytobenthos for carbon cycling in coral reef sands [PDF]

open access: yesBiogeosciences, 2021
The aquatic eddy covariance technique stands out as a powerful method for benthic O2 flux measurements in shelf environments because it integrates effects of naturally varying drivers of the flux such as current flow and light.
A. Merikhi, P. Berg, M. Huettel
doaj   +1 more source

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