Radiation Characteristics, airborne and space-born sensors and instruments, satellite systems, ultispectral/Hyperspectral Data Compression, transmission, archiving, and distribution, spectral signature characteristics of soil, vegetation, water, and cloud, Multispectral/Hyperspectral Data Processing, analysis, and classification, active radar and microwave remote sensing, applications of remotely sensed data in reconnaissance, agriculture, geology, hydrology, forestry, oceanography, meteorology, & ecosystem studies