A dropsonde is an expendable weather reconnaissance device created by the National Center for Atmospheric Research ( NCAR ) , designed to be dropped from an aircraft at altitude to more accurately measure ( and therefore track ) tropical storm conditions as the device falls to the surface .
A dropsonde is a weather reconnaissance device created by the National Center for Atmospheric Research ( NCAR ) , designed to be dropped from an aircraft at altitude to more accurately measure ( and therefore track ) tropical storm conditions as the device falls to the ground .