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

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Pysyväisosoite

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

Lähdeviite

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

Julkaisun nimi: Estimating the storage term in eddy covariance measurements : the ICOS methodology
Tekijä: Montagnani, Leonardo; Gruenwald, Thomas; Kowalski, Andrew; Mammarella, Ivan; Merbold, Lutz; Metzger, Stefan; Sedlak, Pavel; Siebicke, Lukas
Tekijän organisaatio: Department of Physics
Päiväys: 2018-12
Kieli: eng
Sivumäärä: 17
Kuuluu julkaisusarjaan: International Agrophysics
ISSN: 0236-8722
DOI-tunniste: https://doi.org/10.1515/intag-2017-0037
URI: http://hdl.handle.net/10138/287683
Tiivistelmä: 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.
Avainsanat: 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
Vertaisarvioitu: Kyllä
Tekijänoikeustiedot: cc_by
Pääsyrajoitteet: openAccess
Rinnakkaistallennettu versio: publishedVersion


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