|Weather radar stationed in |
National Research Institutue for Earth Science and Disaster Prevention plans to develop a supersensitive small radar for precise observation of the inside of clouds before it starts to rain using millimeter waves that have a wavelength of about 8.5 mm. Based on the water volume inside clouds, the radar can distinguish between water and ice. It precisely computes the development of clouds, rainfall time, and rainfall location for the precise forecasting of heavy rain. Weathernews stationed a small weather radar that is an improved version of X-band radar for aircraft in about 80 locations across the country. The small radar gets data in every six seconds near the ground surface by limiting the observation angle to 120 degrees.
Phased Array Radar