Research progress of National Major Basic Research Project 2001CB309400, “Theory and Application for Retrieval and Fusion of Spatial and Temporal Quantitative Information from Complex Natural Environment”, is briefly reported.
Due to fast advancement of SAR (Synthetic Aperture Radar) imagery technology, information theory of fully polarimetric scattering and applications in polarimetric SAR remote sensing are developed. Microwave passive remote sensing promotes the study of Vector (polarized) Radiative Transfer (VRT) theory of complex natural media. An overall VRT theory for inhomogeneous, multi-layered and 3-dimensional VRT is developed.
Based on these theoretical progresses, data validation and retrieval algorithms for some typical events and characteristic parameters of Earth terrain surfaces, atmosphere and ocean from operational and experimental remote sensing satellites are carried out. Employing remote sensing, radiative transfer simulation, GIS, land hydrological process and data assimilation, Chinese Land Dada Assimilation System (CLDAS) is established. Towards future development of China’s meterologic satellites, employing remote sensing data of currently available SSM/I, AMSU, MTI etc. with ground based measurements, several operational algorithms and dada bases for atmospheric precipitation, water vapor and liquid water in clouds, and other meterologic/hydrological applications are developed.
To promote China’s SAR and InSAR technologies, image processing and analysis of ERS, Radarsat SAR etc. and Chinese SAR, and the software platforms are accomplished. Based on research of multi-information fusion, identification and information extraction of targets from complex background scene are also studied, and some experiments of radio wave propagation in anomalous atmospheric status are carried out.