Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

<a href="/en/project/IAA300420803" target="_blank" >IAA300420803: Missing CO2 flux in night-time eddy covariance measurements</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Agricultural and Forest Meteorology

ISSN

0168-1923

e-ISSN

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Volume of the periodical

150

Issue of the periodical within the volume

5

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

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UT code for WoS article

000278244400002

EID of the result in the Scopus database

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