Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F10%3A00348597" target="_blank" >RIV/68378289:_____/10:00348597 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests
Popis výsledku v původním jazyce
The ADVEX project involved extensive advection measurements at three sites differing in topography. One aim of the project was to measure the CO2 balance in night-time conditions, in an attempt to improve NEE estimates. Horizontal advection varied greatly from site to site and from one wind sector to another, with the highest values reached at large friction velocities. The night-time NEE estimates deduced from the mass balance were incompatible with biologically driven fluxes because they varied strongly from one wind sector to another, their order of magnitude was not realistic and they still showed a trend vs. friction velocity. From a critical analysis of the measurement and data treatment we concluded that the causes of the problem are related tothe measurement representativeness or the simplified CO2 mass balance equation used. This suggests that the improvement of eddy flux measurements by developing an advection-completed CO2 mass balance at night would be practically difficul
Název v anglickém jazyce
Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests
Popis výsledku anglicky
The ADVEX project involved extensive advection measurements at three sites differing in topography. One aim of the project was to measure the CO2 balance in night-time conditions, in an attempt to improve NEE estimates. Horizontal advection varied greatly from site to site and from one wind sector to another, with the highest values reached at large friction velocities. The night-time NEE estimates deduced from the mass balance were incompatible with biologically driven fluxes because they varied strongly from one wind sector to another, their order of magnitude was not realistic and they still showed a trend vs. friction velocity. From a critical analysis of the measurement and data treatment we concluded that the causes of the problem are related tothe measurement representativeness or the simplified CO2 mass balance equation used. This suggests that the improvement of eddy flux measurements by developing an advection-completed CO2 mass balance at night would be practically difficul
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
DG - Vědy o atmosféře, meteorologie
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/IAA300420803" target="_blank" >IAA300420803: Tok CO2 nezachytitelný eddy kovariančním měřením v noci</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2010
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Agricultural and Forest Meteorology
ISSN
0168-1923
e-ISSN
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Svazek periodika
150
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
10
Strana od-do
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Kód UT WoS článku
000278244400002
EID výsledku v databázi Scopus
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