Energy balance closure at FLUXNET sites
Kell B. Wilson,Allen H. Goldstein,Eva Falge,Marc Aubinet,Dennis D. Baldocchi,Paul Berbigier,Christian Bernhofer,Reinhart Ceulemans,Han Dolman,Christopher B. Field,Achim Grelle,A. Ibrom,Beverly E. Law,Andrew S. Kowalski,Tilden P. Meyers,John Moncrieff,Russell K. Monson,Walter C. Oechel,John Tenhunen,Riccardo Valentini,Shashi B. Verma +20 more
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TLDR
A comprehensive evaluation of energy balance closure is performed across 22 sites and 50 site-years in FLUXNET, a network of eddy covariance sites measuring long-term carbon and energy fluxes in contrasting ecosystems and climates as mentioned in this paper.About:
This article is published in Agricultural and Forest Meteorology.The article was published on 2002-12-02 and is currently open access. It has received 2052 citations till now. The article focuses on the topics: Energy balance & FluxNet.read more
Citations
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Journal ArticleDOI
Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future
TL;DR: The eddy covariance method is most accurate when the atmospheric conditions (wind, temperature, humidity, CO2) are steady, the underlying vegetation is homogeneous and it is situated on flat terrain for an extended distance upwind as discussed by the authors.
Journal ArticleDOI
Improvements to a MODIS global terrestrial evapotranspiration algorithm
TL;DR: In this article, an improved version of the global evapotranspiration (ET) algorithm based on MODIS and global meteorology data has been proposed, which simplifies the calculation of vegetation cover fraction, calculating ET as the sum of daytime and nighttime components, adding soil heat flux calculation, improving estimates of stomatal conductance, aerodynamic resistance and boundary layer resistance, separating dry canopy surface from the wet and dividing soil surface into saturated wet surface and moist surface.
Journal ArticleDOI
GLEAM v3: satellite-based land evaporation and root-zone soil moisture
Brecht Martens,Diego G. Miralles,Diego G. Miralles,Hans Lievens,Hans Lievens,Robin van der Schalie,Richard de Jeu,Diego Fernández-Prieto,Hylke E. Beck,Wouter Dorigo,Wouter Dorigo,Niko E. C. Verhoest +11 more
TL;DR: The Global Land Evaporation Amsterdam Model (GLEAM) as discussed by the authors is a set of algorithms dedicated to the estimation of terrestrial evaporation and root-zone soil moisture from satellite data.
Journal ArticleDOI
Environmental controls over carbon dioxide and water vapor exchange of terrestrial vegetation
Beverly E. Law,Eva Falge,Lianhong Gu,Dennis D. Baldocchi,Peter S. Bakwin,Paul Berbigier,Kenneth J. Davis,A. J. Dolman,Matthias Falk,Jose D. Fuentes,Allen H. Goldstein,A. Granier,Achim Grelle,David Y. Hollinger,Ivan A. Janssens,Paul G. Jarvis,Niels Otto Jensen,Gabriel G. Katul,Y. Mahli,Giorgio Matteucci,Tilden P. Meyers,Russell K. Monson,William Munger,Walter C. Oechel,Richard J. Olson,Kim Pilegaard,H. Thorgeirsson,Riccardo Valentini,Shashi B. Verma,Timo Vesala,Kell B. Wilson,Steven C. Wofsy +31 more
TL;DR: The authors compared seasonal and annual estimates of CO2 and water vapor exchange across sites in forests, grasslands, crops, and tundra that are part of an international network called FLUXNET, and investigated the responses of vegetation to environmental variables.
Journal ArticleDOI
The energy balance closure problem: an overview.
TL;DR: It will be shown that former assumptions that measuring errors or storage terms are the reason for the unclosed energy balance do not stand up because even turbulent fluxes derived from documented methods and calibrated sensors, net radiation, and ground heat fluxes cannot close the energy balance.
References
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Journal ArticleDOI
Correction of flux measurements for density effects due to heat and water vapour transfer
TL;DR: In this article, the basic relationships are discussed in the context of vertical transfer in the lower atmosphere, and the required corrections to the measured flux are derived, where the correction to measurements of water vapour flux will often be only a few per cent but will sometimes exceed 10 percent.
Journal ArticleDOI
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
Dennis D. Baldocchi,Eva Falge,Lianhong Gu,Richard J. Olson,David Y. Hollinger,Steven W. Running,P. M. Anthoni,Ch. Bernhofer,Kenneth J. Davis,Robert G. Evans,Jose D. Fuentes,Allen H. Goldstein,Gabriel G. Katul,Beverly E. Law,Xuhui Lee,Yadvinder Malhi,Tilden P. Meyers,William Munger,Walter C. Oechel,Kim Pilegaard,Hans Peter Schmid,Riccardo Valentini,Shashi B. Verma,Timo Vesala,Kell B. Wilson,S. C. Wofsy +25 more
TL;DR: The FLUXNET project as mentioned in this paper is a global network of micrometeorological flux measurement sites that measure the exchanges of carbon dioxide, water vapor, and energy between the biosphere and atmosphere.
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
Dennis D. Baldocchi,Eva Falge,Lianhong Gu,Richard J. Olson,David Y. Hollinger,Steven W. Running,P. M. Anthoni,Christian Bernhofer,Kenneth J. Davis,Robert G. Evans +9 more
Journal ArticleDOI
Physiological and environmental regulation of stomatal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer
TL;DR: In this article, a system of models for the simulation of gas and energy exchange of a leaf of a C3 plant in free air is presented, where the physiological processes are simulated by sub-models that: (a) give net photosynthesis (An) as a function of environmental and leaf parameters and stomatal conductance (gs); (b) give g, as well as the concentration of CO2 and H2O in air at the leaf surface and the current rate of photosynthesis of the leaf.
Book ChapterDOI
Estimates of the annual net carbon and water exchange of forests: the EUROFLUX methodology
Marc Aubinet,Achim Grelle,Andreas Ibrom,Üllar Rannik,John Moncrieff,Thomas Foken,Andrew S. Kowalski,Philippe H. Martin,Paul Berbigier,Christian Bernhofer,Robert Clement,Jan Elbers,André Granier,Thomas Grünwald,K. Morgenstern,Kim Pilegaard,Corinna Rebmann,W. Snijders,Riccardo Valentini,Timo Vesala +19 more
TL;DR: In this article, the authors have described the measurement system and the procedure followed for the computation of the fluxes and procedure of flux summation, including data gap filling strategy, night flux corrections and error estimation.
Related Papers (5)
Correction of flux measurements for density effects due to heat and water vapour transfer
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
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Estimates of the annual net carbon and water exchange of forests: the EUROFLUX methodology
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