ABSTRACT
The Earth Resources Observation Systems (EROS) Program of the US Department of the Interior, administered by the US Geological Survey was created in 1966 to apply remote-sensing techniques to the inventory, monitoring, and management of resources. The first Earth Resources Technology Satellite (ERTS), was launched on July 23, 1972. An analysis of the four individual black and white images or the false-color IR composite images often permits scientists to identify and inventory different environmental phenomena, such as distribution and general type of vegetation, regional geologic structure, and a real extent of surface water. The computer listing will contain all images and photographs available over or close to area of interest. Training in remote sensing and assistance in techniques for analysis for remotely sensed data are available at the EROS Data Center. The technique for enhancing the high-frequency image components is to first low-pass filter the image by a spatial convolution.
