Improvement of CO2 eddy fluxes modelling in topographically complex terrain

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F12%3A00376921" target="_blank" >RIV/67179843:_____/12:00376921 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Improvement of CO2 eddy fluxes modelling in topographically complex terrain

Popis výsledku v původním jazyce

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 algorithmfor 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.

Název v anglickém jazyce

Improvement of CO2 eddy fluxes modelling in topographically complex terrain

Popis výsledku anglicky

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 algorithmfor 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.

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.4.31.0056" target="_blank" >EE2.4.31.0056: Partnerství v oblasti výzkumu klimatu a adaptačních strategií</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Sborník studentské vědecké konference 2012

ISBN

978-80-7368-966-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Přírodovědecká fakulta Ostravské univerzity v Ostravě

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

10. 5. 2012

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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