How well can we measure the vertical profile of tropospheric aerosol extinction?

The core information for this publication's citation.: 
Schmid, B., R. Ferrare, C. Flynn, R. Elleman, D. Covert, A. Strawa, E. Welton, D. Turner, H. Jonsson, J. Redemann, J. Eilers, K. Ricci, A. G. Hallar, M. Clayton, J. Michalsky, A. Smirnov, B. Holben, and J. Barnard (2005), How well can we measure the vertical profile of tropospheric aerosol extinction?, J. Geophys. Res., 2005JD005837, D05S07, doi:10.1029/2005JD005837.
PDF of Publication: 
Download from publisher's website.