Aerosol Remote Sensing

1. Introduction.-2. Absorption and Scattering by Molecules and Aerosols.- 3. Radiative Transfer in the Earth's Atmosphere.- 4. Direct Observation of the Sun.- 5. Observation of the Difuse Solar Radiation and the Influence of Aerosols: Determination of Aerosol Optical Properties from Direct and Inverse Methods.- 6. Passive Shortwave Remote Sensing from the Ground, 7. Shortwave Remote Sensing from Space.- 8. Major Recent or Present Instruments for Shortwave Remote Sensing.- 9. Longwave Passive Remote Sensing,-10. Active Lidar Remote Sensing.- 11. Results. The Present Situation. Plans for Future Research.