Flooding is one of the most costly natural disasters and thus mapping, modeling and forecasting flood
events at various temporal and spatial scales is important for any flood risk mitigation plan, disaster relief
services and the global (re-)insurance markets. Both computer models and observations (ground-based,
airborne and Earth-orbiting) of flood processes and variables are of great value but the amount and quality
of information available varies greatly with location, spatial scales and time. It is very well known that
remote sensing of flooding, especially in the microwave region of the electromagnetic spectrum, can
complement ground-based observations and be integrated with flood models to augment the amount
of information available to end-users, decision-makers and scientists. This paper aims to provide a concise
review of both the science and applications of microwave remote sensing of flood inundation, focusing
mainly on synthetic aperture radar (SAR), in a variety of natural and man-made environments.
Strengths and limitations are discussed and the paper will conclude with a brief account on perspectives
and emerging technologies.
Flooding is one of the most costly natural disasters and thus mapping, modeling and forecasting floodevents at various temporal and spatial scales is important for any flood risk mitigation plan, disaster reliefservices and the global (re-)insurance markets. Both computer models and observations (ground-based,airborne and Earth-orbiting) of flood processes and variables are of great value but the amount and qualityof information available varies greatly with location, spatial scales and time. It is very well known thatremote sensing of flooding, especially in the microwave region of the electromagnetic spectrum, cancomplement ground-based observations and be integrated with flood models to augment the amountof information available to end-users, decision-makers and scientists. This paper aims to provide a concisereview of both the science and applications of microwave remote sensing of flood inundation, focusingmainly on synthetic aperture radar (SAR), in a variety of natural and man-made environments.Strengths and limitations are discussed and the paper will conclude with a brief account on perspectivesand emerging technologies.
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