Drop sondes are consumable instruments deployed from an aircraft to measure wind speed and direction between flight level and the surface. As the Drop Sonde falls (at roughly 25 m/s or 5000 ft/min), it interprets GPS satellite information to determine its location while moving with the horizontal winds. The sondes GPS coordinates are transmitted to a sonde receiver on the airplane or on the ground. The data received by the sonde receiver is used to calculate the wind speed and direction.
Drop Sondes are compatible with:
drop sonde kit
Receiver Station. Drop Sondes, and Base Station
AIRBORNE rECEIVER bASED wIND
dROP sONDE sYSTEM