HIGH FIVE!

NASA Challenge Theme : What is Synthetic Aperture Radar (SAR)?JEFF : MandarinH.A., TIA, MC : English JEFF, TIA, H.A. : Hi! (wave hands)JEFF : So today we are going to talk about Synthetic Aperture Radar (SAR).TIA :[What is Synthetic Aperture Radar?]Synthetic Aperture Radar, also known as SAR, is a type of active data collection, where a sensor produces its own energy and then records the amount of that energy reflected back after interacting with the Earth. While optical imagery is similar to interpreting a photograph, SAR data require a different way of thinking in that the signal is instead responsive to surface characteristics like structure and moisture. The radar is pointed side