Operation of a Three Wavelength Nephelometer and Some Measurements Made at Jabiru During 2002

摘要

The operation of a three wavelength integrating nephelometer is explained and summarized. This instrument was purchased by ISRD for studies of atmospheric aerosols which play an important role in the propagation of electro- magnetic radiation from the UV through to the mid wave W. Preliminary results are also reported on the aerosol scattering coefficient measurements made during the months of September through November 2002 at Jabiru in Kakadu National Park. This data will form the initial part of a long term aerosol monitoring program in the region to be conducted jointly by DSTO and CSIRO. The instrument has been re-installed at Jabiru from about mid September 2004 on an ongoing basis to enable data to be collected on the seasonal variation in aerosol properties. Details on the instrument's performance on an aircraft during experiments conducted during 2003 will be presented in separate reports.