Atmospheric extinction measurements of a He-Ne laser.
The extinction of a He-Ne laser in a 300-m long urban path has been measured and correlated to temperature and relative humidity variations. The results are contrasted with the scattering coefficient theoretically calculated for a model of aerosols. The agreement seems to indicate that the values of the extinction are strongly correlated with relative humidity in inhomogeneous urban paths.
Bertolotti
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M
Carnevale
M
M
Sette
D
D