| Remote Sensing: Analysis of the earth's surface and interpretation of its features using imagery collected from air or space platforms. Image processing methods use visible and nonvisible (e.g. ultraviolet and infrared) parts of the electromagnetic spectrum to interpret land cover patterns of vegetation, soil, land use, and environmental systems, including up-to-the-minute changes in these systems. With new satellite platforms going up every year, with increasing richness in spatial and spectral detail, this technology is becoming an essential tool for geographic information scientists. |