Characterization and investigation of a chemical modulation reactor (CMR) for the measurement of atmospheric concentrations of hydroxyl radicals with a laser-induced fluorescence instrument

Changmin Cho1, Andreas Hofzumahaus2, Hendrik Fuchs3, Frank Holland4, Justin Shenolikar5, John Crowley6, Franz Rohrer2, Hans-Peter Dorn7, Astrid Kiendler-Scharr2, Andreas Wahner2 and Anna Novelli2, (1)Forschungeszentrum Jülich GmbH, Insitute of Energy and Climate Research, IEK-8: Troposphere, Jülich, Germany, (2)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-8: Troposphere, Jülich, Germany, (3)Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-8: Troposphere, Jülich, Germany, (4)Forschungszentrum Juelich GMBH, Institute of Energy and Climate Research, IEK-8: Troposphere, Juelich, Germany, (5)Max-Planck-Institute for Chemistry, Mainz, Germany, (6)Max Planck Institute for Chemistry, Mainz, Germany, (7)Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-8: Troposphere, Juelich, Germany