About: Improvement of CO2 eddy fluxes modelling in topographically complex terrain

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Annual sums of net ecosystem exchange (NEE) estimated by eddy covariance method (EC) are often used for comparisons among sites. But application of EC in topographically complex terrain restrains application of standard methods for their estimation. Analysis of friction air velocity response of night-time CO2 fluxes and estimation of mean daily ecosystem respiration from daytime NEE showed that night-time data and fluxes measured early after sunrise or late before sunset are not sufficiently reliable for computation of accurate annual sums of NEE. Therefore presented method takes into account auxiliary soil chamber measurements and applies correction factor in ecosystem respiration model calibrated to biomass inventory results. Also automated algorithm for computation of light response curve parameters in constrained range was established. This method produced accurate annual sums of NEE that were only 7.2% 5.2 higher than values determined by biomass inventory method. Annual sums of net ecosystem exchange (NEE) estimated by eddy covariance method (EC) are often used for comparisons among sites. But application of EC in topographically complex terrain restrains application of standard methods for their estimation. Analysis of friction air velocity response of night-time CO2 fluxes and estimation of mean daily ecosystem respiration from daytime NEE showed that night-time data and fluxes measured early after sunrise or late before sunset are not sufficiently reliable for computation of accurate annual sums of NEE. Therefore presented method takes into account auxiliary soil chamber measurements and applies correction factor in ecosystem respiration model calibrated to biomass inventory results. Also automated algorithm for computation of light response curve parameters in constrained range was established. This method produced accurate annual sums of NEE that were only 7.2% 5.2 higher than values determined by biomass inventory method. (en)
Title	Improvement of CO2 eddy fluxes modelling in topographically complex terrain Improvement of CO2 eddy fluxes modelling in topographically complex terrain (en)
skos:prefLabel	Improvement of CO2 eddy fluxes modelling in topographically complex terrain Improvement of CO2 eddy fluxes modelling in topographically complex terrain (en)
skos:notation	RIV/67179843:_____/12:00376921!RIV13-AV0-67179843
http://linked.open...avai/predkladatel	Centrum výzkumu globální změny AV ČR v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(EE2.4.31.0056), Z(AV0Z60870520)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šigut, Ladislav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	140920
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/12:00376921
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	eddy covariance; u* threshold; gap-filling; flux partitioning; complex terrain (en)
http://linked.open.../riv/klicoveSlovo	complex terrain eddy covariance flux partitioning gap-filling u* threshold
http://linked.open...ontrolniKodProRIV	[F4F1195616E5]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	Sborník studentské vědecké konference 2012
http://linked.open...in/vavai/riv/obor	BO
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Partnership in Climate Research and Adaptation Strategies
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Šigut, Ladislav
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2012-05-10 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Přírodovědecká fakulta Ostravské univerzity v Ostravě
https://schema.org/isbn	978-80-7368-966-7
is http://linked.open...avai/riv/vysledek of	Improvement of CO2 eddy fluxes modelling in topographically complex terrain

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