SAR

Synthetic Aperture Radar (SAR) is one of the most powerful forms of remote sensing that utilizes microwave radiations to develop detailed images of the Earth's surface. Being an active sensing method, SAR emits microwaves and analyzes the reflection of those signals by various targets and landscapes. SAR satellites are capable of acquiring geospatial data despite any weather conditions including cloudy and hazy skies. SAR images are widely applied for Earth observation, land cover mapping, agriculture, forestry, flood monitoring, disaster management, infrastructure monitoring, and environmental studies. They can also serve for such applications as detecting surface deformations, assessing soil moisture, monitoring glaciers and coasts, and performing change detection. As radar detects characteristics of surfaces such as their structure, moisture, roughness, and geometry, SAR images allow observing features not visible on ordinary optical images. Due to its capability to produce reliable data continuously over large territories, Synthetic Aperture Radar has become an indispensable data source for modern GIS, satellite imaging, spatial analytics, and geospatial intelligence.