This book is a collection of the lectures, held at the International Summer School ISSAOS-2000 in L'Aquila (Italy), given by invited lecturers coming from both Europe and the USA. The goal of the book is to provide a broad panorama of spaceborne remote sensing techniques, at both microwave and visible-infrared bands and by both active and passive sensors, for the retrieval of atmospheric and oceanic parameters. A significant emphasis is given to the physical modeling background, instrument potential and limitations, inversion methods and applications. Topics on international remote sensing programs and assimilation techniques into numerical weather forecast models are also touched.

Models and Inversion Methods for Remote Sensing.- Atmospheric Backscatter and Lidars.- Precipitation Modeling for Inversion Purposes.- Profile Retrieval Estimation Techniques.- Bayesian Techniques in Remote Sensing.- Atmospheric Remote Sensing by Microwave and Visible-Infrared Sensors.- Atmospheric Temperature Analysis Using Microwave Radiometry.- Microwave Limb Sounding.- Retrieval of Integrated Water Vapour and Cloud Liquid Water Contents.- Precipitation Retrieval From Spaceborne Microwave Radiometers and Combined Sensors.- Clouds and Rainfall by Visible-Infrared Radiometry.- Tropospheric Aerosols by Passive Radiometry.- Ocean Remote Sensing by Microwave and Visible-Infrared Sensors.- Sea Modeling by Microwave Altimetry.- Sea Scatterometry.- Sea Surface Characterization by Combined Data.- Data Assimilation and Remote Sensing Programs.- Mesoscale Modeling and Methods Applications.- COST Action 712: Microwave Radiometry.