Question

what do you mean by weather balloon please please answer me please but I know the answer but I am asking you

Answer 1

The balloon at high altitude above earth 's surface which gives us information about temperature, pressure, humidity etc is called a weather balloon. It carries some instruments and send back Information to the earth by means of radiosonde.

Answer 2

A weather or sounding balloon is a balloon(specifically a type of high-altitude balloon) that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde. To obtain winddata, they can be tracked by radar, radio direction finding, or navigation systems (such as the satellite-based Global Positioning System, GPS). Balloons meant to stay at a constant altitude for long periods of time are known as transosondes. Weather balloons that do not carry an instrument pack are used to determine upper-level winds and the height of cloud layers. For such balloons, a theodolite  or Total stationis used to track the balloon's azimuth and elevation, which are then converted to estimated wind speed and direction and/or cloud height, as applicable
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