What is the name of the Doppler radar that looks straight up?
The name you’re looking for is “wind profiler.” Regular Doppler weather radars send their beams out in a circle around the antenna, at small angles upward to detect precipitation and other “targets” in the air, even including swarms of insects. Profilers beam their radio waves straight up and at slight angles to straight up. Slight changes in air density, even in clear skies, scatter radio energy back to earth. The profilers use these to measure wind speeds and directions in the upper atmosphere. Profilers keep almost constant track of upper-air winds, unlike weather balloons that are normally launched only twice a day.
