Vertical profile of ozone concentration at the Barbeau-Fontainebleau research forest station

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The dataset is half-houlry means of ozone (O3) concentrations (in ppb) measured in air along a vertical profile, from 10 of October 2014 to 31 of December 2019, at the Barbeau-Fontainebleau research forest station (www.barbeau.universite-paris-saclay.fr, FR-Fon). Location : 48.476358, 2.780096 The heights of air inlets are 0.10, 0.23, 0.54, 1.26, 2.93, 15.90 and 37.00 meters above ground level. Ozone data were recorded with a Thermo Scientific 49i analyzer coupled with a pumping system that allowed air to go through the analyzer sequentially from the different air inlets. All the pumping system (filters, tubes, tubes connections, pump membranes) was composed of teflon (PTFE, PFA) or stainless steel material. The variable name is called O3_H_V_R, where : - H and V stands for the position of the sensors on a 2D space (H for horizaontal and V for vertical - R identifies the presence of replicated measurements in the same location For example in this dataset, the variables O3_2_1_1 and O3_2_2_1 are located at the same horizontal position but differs in vertical one. (2023-10-23) Timestamp is in Central European Time, ie CET (UTC+1)