An intercomparison of ground-based UV-visible sensors of ozone and NO2

H.K. Roscoe, L.M. Bartlett, F.M. O'Connor, A. Sarkissian, M. Van Roozendael, J.C. Lambert, P.C. Simon, K. Karlsen, B.A. Kastad Hoiskar, D.J. Fish, R.L. Jones, R. Freshwater, J.P. Pommereau, F. Goutail, S.B. Andersen, D.J. Drew, P.A. Hughes, D. Moore, J. Mellqvist, E. Hegels, T. Klupfel, F. Erle, K. Pfeilsticker and U. Platt