The CARIBIC measurements are made from a specially equipped container flown monthly on-board a commercial airliner. Measurements have been ongoing since 2005 and have become part of the European Research Infrastructure IAGOS (www.iagos.org). The cruise altitude of the aircraft is 10-12 km enabling regular investigation of the upper troposphere and lowermost stratosphere (UTLS) on a near-global scale. The container comprises 15 measurement systems and carries out in-situ trace gas and aerosol particle measurements, remote sensing, and collects aerosol particle and whole air samples. The whole air samples are pressurized in canisters and analyzed for VOC in our lab. Species of interest include hydrocarbons, Sulphur containing species, halogenated species as well as greenhouse gases CO2, CH4, N2O and SF6.
CARBIC - Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container.
M. Li, E. Karu, C. Brenninkmeijer, H. Fischer, J. Lelieveld & J. Williams. Tropospheric OH and stratospheric OH and Cl concentrations determined from CH4, CH3Cl, and SF6 measurements. Nature Partner Journal - Climate and Atmospheric Science, 1, 29 (2018). https://www.nature.com/articles/s41612-018-0041-9
U. R. Thorenz, A. K. Baker, E. C. Leedham Elvidge, C. Sauvage, H. Riede, P. F. J. van Velthoven, M. Hermann, A. Weigelt, D. E. Oram, C. A. M. Brenninkmeijer, A. Zahn, and J. Williams. Investigating African trace gas sources, vertical transport, and oxidation using IAGOS-CARIBIC measurements between Germany and South Africa between 2009 and 2011. Atmos. Environ. 158, 11-26, 2017. https://www.sciencedirect.com/science/article/pii/S1352231017301474
A. K. Baker, C. Sauvage, U. R. Thorenz, P. van Velthoven, D. E. Oram, A. Zahn, C. A. M. Brenninkmeijer & J. Williams. Evidence for strong, widespread chlorine radical chemistry associated with pollution outflow from continental Asia, Scientific Reports 6, Article number: 36821 (2016), doi:10.1038/srep36821. https://www.nature.com/articles/srep36821
J. Ditas, N. Ma, Y. Zhang, D. Assmann, M. Neumaier, H. Riede, E. Karu, J. Williams, D. Scharffe, Q. Wang, J. Saturno, J. P. Schwarz, J. M. Katich, G. McMeeking, A. Zahn, M. Hermann, C. A. M. Brenninkmeijer, M. O. Andreae, U. Pöschl, H. Su and Y. Cheng. Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratospherePNAS, doi/10.1073/pnas.1806868115 www.pnas.org/cgi/doi/10.1073/pnas.1806868115