Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 7 4 2007 10.5194/acpd-7-10767-2007 http://www.atmos-chem-phys-discuss.net/7/10767/2007/ http://www.atmos-chem-phys-discuss.net/7/10767/2007/acpd-7-10767-2007.html http://www.atmos-chem-phys-discuss.net/7/10767/2007/acpd-7-10767-2007.pdf 10767 10797 2007-07-25 Application of a diode array spectroradiometer to measuring the spectral scattering properties of cloud types in a laboratory A. R. D. Smedley andrew.smedley@manchester.ac.uk A. R. Webb C. P. R. Saunders Centre for Atmospheric Science, University of Manchester, Simon Building, Manchester M13 9PL, UK In the last few years diode array spectroradiometers have become useful complements to traditional scanning instruments when measuring visible and ultraviolet solar radiation incident on the ground. This study describes the application of such an instrument to the problem of measuring the radiation scattered by different cloud types in a laboratory environment. Details of how the instrument is incorporated into the experimental set-up are given together with the development of the system as a whole. The capability to measure a full spectrum for each scattering angle is an undoubted advantage, although the limited dynamic range impacts on the usefulness for optically thin clouds. 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