Satellites have been used to track hurricanes for years starting in summer 1961. Last year, a new remote sensing tool was added to the imagery provided by satellites—synthetic aperture radar (SAR). According to an Eos.org article, this works by sending out radar pulses and recording the amplitude and phase of the reflected return signals. These are then combined to provide highly detailed views of wind speed at the ocean surface beneath hurricanes and tropical storms, providing a better-than-ever view of the location of the storm’s eye. This information is then used to help in forecasting the storm’s path and potential impacts. – Beth Sciaudone, Civil Water Resources & Environmental Instructor
