Articles | Volume 9, issue 9
Research article
21 Sep 2016
Research article |  | 21 Sep 2016

Optimal use of buffer volumes for the measurement of atmospheric gas concentration in multi-point systems

Alessandro Cescatti, Barbara Marcolla, Ignacio Goded, and Carsten Gruening


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Short summary
Multi-point monitoring systems are required to measure atmospheric gas concentrations at tall towers and eddy covariance sites. The use of buffer volumes can reduce the uncertainty due to the discrete temporal sampling. We propose a processing scheme that accounts for the fraction of signal built up in the averaging period and reduces the error up to 80 % compared to the standard setup. A relationship is derived to estimate the optimal volume size given the specifications of the sampling system.