Passive remote sensing of aerosols from space now and in the future |
| |
Authors: | H Quenzel |
| |
Institution: | Universität München, Meteorologisches Institut, Theresienstrasse 37, D-8000 München 2, FRG |
| |
Abstract: | Aerosols modify scattered solar radiation leaving the atmosphere and this fact will be exploited to determine the aerosol optical depth. The interaction processes between solar radiation and aerosol particles are outlined. A quasi-linear relationship (‘conversion curves’) between the radiance at the satellite, Lsat, and the aerosol optical depth, aDλ, is found from both numerical and empirical studies. Because Lsat is not only controlled by aDλ, but also by a series of other atmospheric parameters (perturbing quantities), the concept of ‘favourable viewing conditions’ is presented, where the effects of the perturbing quantities are minimal. The paper ends with some lines of thought on a concept for a turbidity satellite. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|