http://www.cnr.it/ontology/cnr/individuo/prodotto/ID13006
Quality analysis applied on eddy covariance measurements at complex forest sites using footprint modelling (Articolo in rivista)
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- Quality analysis applied on eddy covariance measurements at complex forest sites using footprint modelling (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s00704-004-0095-y (literal)
- Alternative label
C. REBMANN, M. GÖCKEDE, T. FOKEN, M. AUBINET, M. AURELA, P. BERBIGIER, C. BERNHOFER, N. BUCHMANN, A. CARRARA, A. CESCATTI, R. CEULEMANS, R. CLEMENT, J. A. ELBERS, A. GRANIER, T. GRÜNWALD, D. GUYON, K. HAVRÁNKOVÁ, B. HEINESCH, M. NARDINO ET AL (2005)
Quality analysis applied on eddy covariance measurements at complex forest sites using footprint modelling
in Theoretical and applied climatology; SPRINGER, DORDRECHT (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- C. REBMANN, M. GÖCKEDE, T. FOKEN, M. AUBINET, M. AURELA, P. BERBIGIER, C. BERNHOFER, N. BUCHMANN, A. CARRARA, A. CESCATTI, R. CEULEMANS, R. CLEMENT, J. A. ELBERS, A. GRANIER, T. GRÜNWALD, D. GUYON, K. HAVRÁNKOVÁ, B. HEINESCH, M. NARDINO ET AL (literal)
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- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Titolo
- Quality analysis applied on eddy covariance measurements at complex forest sites using footprint modelling (literal)
- Abstract
- Measuring turbulent fluxes with the eddy covariance
method has become a widely accepted and powerful tool
for the determination of long term data sets for the exchange
of momentum, sensible and latent heat, and trace
gases such as CO2 between the atmosphere and the underlying
surface. Several flux networks developed continuous
measurements above complex terrain, e.g. AmeriFlux and
EUROFLUX, with a strong focus on the net exchange ofCO2 between the atmosphere and the underlying surface.
Under many conditions basic assumptions for the eddy
covariance method in its simplified form, such as stationarity
of the flow, homogeneity of the surface and fully
developed turbulence of the flow field, are not fulfilled. To
deal with non-ideal conditions which are common at many
FLUXNET sites, quality tests have been developed to
check if these basic theoretical assumptions are valid.
In the framework of the CARBOEUROFLUX project,
we combined quality tests described by Foken and Wichura
(1996) with the analytical footprint model of Schmid (1997).
The aim was to identify suitable wind sectors and meteorological
conditions for flux measurements. These tools were
used on data of 18 participating sites. Quality tests were
applied on the fluxes of momentum, sensible and latent heat,
and on the CO2-flux, respectively. The influence of the topography
on the vertical wind component was also checked. At
many sites the land use around the flux towers is not homogeneous
or the fetch may not be large enough. So the relative
contribution of the land use type intended to be measured
was also investigated. Thus the developed tool allows comparative
investigations of the measured turbulent fluxes at
different sites if using the same technique and algorithms
for the determination of the fluxes as well as analyses of
potential problems caused by influences of the surrounding
land use patterns. (literal)
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