Abstract
Abstract Remote sensing is a tool that permits accurate and real‐time evaluation, continuous monitoring or surveillance, and forecasts of inland water resources. Remote sensing systems are used to observe the earth's surface from different levels of platforms, such as satellites and aircraft, and make it possible to collect and analyze information about resources and environment across large areas. Remote sensors record electromagnetic energy reflected or emitted from the earth's surface. Different kinds of objects or features such as soils, vegetation, and water reflect and emit energy differently. This characteristic makes it possible to measure, map, and monitor these objects and features using satellite or aircraft‐borne remote sensing systems. Satellite imagery offers a number of advantages over conventional survey techniques: areal synoptic coverage (gives areal information as against point information through conventional techniques) repetitive global coverage (for monitoring change) real‐time processing sensing of surrogates rather than the desired specific observation multispectral coverage More automation, less human error.
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