Parameterization of the Vertical Profile of the Aerosol Constitution in the Lower Troposphere as a Function of Meteorological Conditions and Horizontal Extension.

On 51 tables and 24 figures results are given of 11-year daily measurements of the aerosol particle spectrum measured with 5-fold double stage impactors (mean particle diam. 0.2...5 microns. The measurements were made at three neighboring mountain stations (0.7, 1.8, and 3 km a.s.1.) in the northern Alps and are valid (verified by radiosonde comparisons over 90 km distance) for a range of round 200 km diameter if no disturbances of synoptic scale are close by. The spectra have been parameterized according to various meteorlogical aspects: Seasons/air mass type/Temperature and humidity/Aerosol, Aerosol mass per volume/Visibility range/Height dependence. The data serve as climatological basis by means of which visibility and light transmission can be estimated from meteorological data under conditions in Middle Europe. (Author)