Reconstruction of Northern Hemisphere 1950-2010 atmospheric non-methane hydrocarbons

D. Helmig, V. Petrenko, P. Martinerie, E. Witrant, T. Rockmann, A. Zuiderweg, R. Holzinger, J. Hueber, C. Thompson, J. W. C. White, W. Sturges, A. Baker, T. Blunier, D. Etheridge, M. Rubino, P. Tans