Articles | Volume 9, issue 11
Research article
25 Nov 2016
Research article |  | 25 Nov 2016

CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Réunion Island and comparisons with MIPAS/ENVISAT data

Minqiang Zhou, Corinne Vigouroux, Bavo Langerock, Pucai Wang, Geoff Dutton, Christian Hermans, Nicolas Kumps, Jean-Marc Metzger, Geoff Toon, and Martine De Mazière

Data sets

IMK/IAA generated MIPAS/Envisat data Karlsruhe Institute of Technology (KIT)

SMO HATS in situ CFC-11 and CFC-12 data National Oceanic and Atmospheric Administration (NOAA)

SMO HATS flask sampling HCFC-22 data National Oceanic and Atmospheric Administration (NOAA)

Short summary
Profiles of CFC-11, CFC-12 and HCFC-22 have been obtained from FTIR measurements above the Saint-Denis and Maïdo sites at Reunion Island (21° S, 55° E) with low vertical resolution. The trends derived from the FTIR measurements are −0.86 ± 0.12 % and 2.84 ± 0.06 % for CFC-11 and HCFC-22, respectively, for the period 2004 to 2016, and −0.76 ± 0.05 % for CFC-12 for 2009 to 2016, which are consistent with ground-based in situ observations. Our FTIR data and the collocated MIPAS data are in good agreement.