Results 1 to 10 of about 1,860,518 (333)

A widely-used eddy covariance gap-filling method creates systematic bias in carbon balance estimates. [PDF]

open access: yesSci Rep, 2023
Climate change mitigation requires, besides reductions in greenhouse gas emissions, actions to increase carbon sinks in terrestrial ecosystems. A key measurement method for quantifying such sinks and calibrating models is the eddy covariance technique ...
Vekuri H   +8 more
europepmc   +2 more sources

The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. [PDF]

open access: yesSci Data, 2020
The FLUXNET2015 dataset provides ecosystem-scale data on CO2, water, and energy exchange between the biosphere and the atmosphere, and other meteorological and biological measurements, from 212 sites around the globe (over 1500 site-years, up to and ...
Pastorello G   +289 more
europepmc   +2 more sources

Author Correction: The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. [PDF]

open access: yesSci Data, 2021
A Correction to this paper has been published: https://doi.org/10.1038/s41597-021-00851-9.
Pastorello G   +288 more
europepmc   +2 more sources

Shipborne eddy covariance observations of methane fluxes constrain Arctic sea emissions. [PDF]

open access: yesSci Adv, 2020
Direct measurements of methane fluxes from the Laptev, East Siberian, and Chukchi seas confirm low regional emissions. We demonstrate direct eddy covariance (EC) observations of methane (CH4) fluxes between the sea and atmosphere from an icebreaker in ...
Thornton BF   +6 more
europepmc   +2 more sources

Global terrestrial carbon fluxes of 1999-2019 estimated by upscaling eddy covariance data with a random forest. [PDF]

open access: yesSci Data, 2020
The terrestrial biosphere is a key player in slowing the accumulation of carbon dioxide in the atmosphere. While quantification of carbon fluxes at global land scale is important for mitigation policy related to climate and carbon, measurements are only ...
Zeng J   +7 more
europepmc   +2 more sources

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   +2 more sources

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   +2 more sources

Comparison of evapotranspiration estimates using the water balance and the eddy covariance methods

open access: yesVadose Zone Journal, 2020
The eddy covariance method estimates the energy flux of latent heat for evapotranspiration. However, imbalance between the land surface energy output and input is a well‐known fact.
Tanja Denager   +3 more
doaj   +2 more sources

The use of disjunct eddy sampling methods for the determination of ecosystem level fluxes of trace gases [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
The concept of disjunct eddy sampling (DES) for use in measuring ecosystem-level micrometeorological fluxes is re-examined. The governing equations are discussed as well as other practical considerations and guidelines concerning this sampling method as ...
A. A. Turnipseed   +8 more
doaj   +3 more sources

Some aspects of the energy balance closure problem [PDF]

open access: yesAtmospheric Chemistry and Physics, 2006
After briefly discussing several reasons for the energy balance closure problem in the surface layer, the paper focuses on the influence of the low frequency part of the turbulence spectrum on the residual. Changes in the turbulent fluxes in this part of
T. Foken   +4 more
doaj   +4 more sources

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