linear volume depolarisation, 532 nm => SAHARAN DUST !
Linear aerosol depolarisation of about 30% up to 4 km a.g. indicates
Saharan dust over Maisach/Munich. The backscatter color ratio indicates large particles.
Aerosol layers between 4 km and 7 km a.g. show lower lin. aersol dep. of
about 6% to 10% and the backscatter color ratio indicates smaller particles.
Aerosol OD532 of the elevated layers amounts to about 0.03.
Only the NAAPS model forcasts dust over Munich - also sometimes during
the comming days.
http://www.nrlmry.navy.mil/aerosol/index_shortcuts.html