For pilot to master altitude airflow and wind direction precise, meteorological station release a 2m diameter weather balloon, detect weather situation from ground to 100 thousand feet altitude. Weather balloon speed is 5m/s, highest altitude can be 100 thousand feet.
Weather balloon size is only 30cm before inflate, drop some Talc powder before inflate, prevent electrostatic ignites hydrogen, carefully calculate needed gas, according to humidity condition inflate calculated gas, and measure after tie the cable, after then tie the radiosonde. Meteorological radio receiver rotates according to weather balloon positions. Computer process all these data and then report to forecast center, after analysis by forecast center, pilot will get weather information.
You can buy a high altitude balloon from: High Altitude Balloon
Weather balloon size is only 30cm before inflate, drop some Talc powder before inflate, prevent electrostatic ignites hydrogen, carefully calculate needed gas, according to humidity condition inflate calculated gas, and measure after tie the cable, after then tie the radiosonde. Meteorological radio receiver rotates according to weather balloon positions. Computer process all these data and then report to forecast center, after analysis by forecast center, pilot will get weather information.
You can buy a high altitude balloon from: High Altitude Balloon