Articles | Volume 8, issue 12
Research article
18 Dec 2015
Research article |  | 18 Dec 2015

Comparison of the regional CO2 mole fraction filtering approaches at a WMO/GAW regional station in China

S. X. Fang, P. P. Tans, M. Steinbacher, L. X. Zhou, and T. Luan


Interactive discussion

Status: closed
Status: closed
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Short summary
The identification of atmospheric CO2 observation data which are minimally influenced by very local emissions/removals is essential for trend analysis and for the estimation of regional sources and sinks. We compared four data filtering regimes based on the observation records at Lin'an station in China, and found that the use of meteorological parameters was the most favorable. This conclusion will aid regional data selection at the Lin'an station.