CH4 emissions from European Major Population Centers: Results from aircraft-borne CH4 in-situ observations during EMeRGe-Europe campaign 2017

Anke Roiger1, Theresa Klausner1, Hans Schlager1, Helmut Ziereis2, Heidi Huntrieser1, Robert Baumann1, Lisa Eirenschmalz1, Patrick Joeckel3, Mariano Mertens4, Rebecca Fisher5, Stephane Bauguitte6, Stuart Young7 and Maria Dolores Andrés Hernández8, (1)German Aerospace Center (DLR), Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (2)German Aerospace Center (DLR) Oberpfaffenhofen, Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (3)German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Wessling, Germany, (4)German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (5)Royal Holloway, University of London, Department of Earth Sciences, Egham, United Kingdom, (6)Facility for Airborne Atmospheric Measurements, Cranfield University, Cranfield, United Kingdom, (7)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (8)University of Bremen, Institute of Environmental Physics (IUP), Bremen, Germany