Composition of the TTL over Darwin: local mixing or long-range transport? W. J. Heyes, G. Vaughan, G. Allen, A. Volz-Thomas, H.-W. Pätz, and R. Busen SEAES, University of Manchester, UK ICG-2, Forschungszentrum Jülich, Germany Institute of Atmospheric Physics, DLR Oberpfaffenhofen, Germany Received: 26 February 2009 – Accepted: 9 March 2009 – Published: 20 March 2009 Correspondence to: W. J. He...