Definitions for "Rawinsonde"
A type of upper-air observation that determines the wind speed, direction, pressure, temperature, and relative humidity by utilizing a radiosonde tracked by a radio direction-finding device such as a radio theodolite. For more information on Rawinsondes follow this link to, also the NOAA's Site.
a radiosonde whose three dimensional position is measured as a function of time
a simpler device intended for measuring wind speeds only
a small instrument package about the size of thick sandwich