Estimating the storage term in eddy covariance measurements : the ICOS methodology

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http://hdl.handle.net/10138/287683

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Montagnani , L , Gruenwald , T , Kowalski , A , Mammarella , I , Merbold , L , Metzger , S , Sedlak , P & Siebicke , L 2018 , ' Estimating the storage term in eddy covariance measurements : the ICOS methodology ' , International Agrophysics , vol. 32 , no. 4 , pp. 551-567 . https://doi.org/10.1515/intag-2017-0037

Titel: Estimating the storage term in eddy covariance measurements : the ICOS methodology
Författare: Montagnani, Leonardo; Gruenwald, Thomas; Kowalski, Andrew; Mammarella, Ivan; Merbold, Lutz; Metzger, Stefan; Sedlak, Pavel; Siebicke, Lukas
Upphovmannens organisation: Department of Physics
Datum: 2018-12
Språk: eng
Sidantal: 17
Tillhör serie: International Agrophysics
ISSN: 0236-8722
DOI: https://doi.org/10.1515/intag-2017-0037
Permanenta länken (URI): http://hdl.handle.net/10138/287683
Abstrakt: In eddy covariance measureinents, the storage flux represents the variation in time of the dry molar fraction of a given gas in the control volume representative of turbulent flux. Depending on the time scale considered, and on the height above ground of the measurements, it can either be a major component of the overall net ecosystem exchange or nearly negligible. Instrumental configuration and computational procedures must be optimized to measure this change at the time step used for the turbulent flux measurement Three different configurations are suitable within the Integrated Carbon Observation System infrastructure for the storage flux determination: separate sampling, subsequent sampling and mixed sampling. These configurations have their own advantages and disadvantages, and must be carefully selected based on the specific features of the considered station. In this paper, guidelines about number and distribution of vertical and horizontal sampling points are given. Details about suitable instruments, sampling devices, and computational procedures for the quantification of the storage flux of different GHG gases are also provided.
Subject: ICOS
protocol
storage flux
eddy covariance
greenhouse gases
NET ECOSYSTEM EXCHANGE
CARBON-DIOXIDE
CO2 STORAGE
METHANE FLUX
WATER-VAPOR
FOREST
ADVECTION
CANOPY
SYSTEM
BUDGET
114 Physical sciences
4112 Forestry
Referentgranskad: Ja
Licens: cc_by
Användningsbegränsning: openAccess
Parallelpublicerad version: publishedVersion


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