RADIOSONDE is validvalid

a radio transmitter, borne into and from upper atmosphere by balloon and parachute, sending out information on atmospheric conditions

137,945 of 196,601 in NWL2023·also valid in CSW24

a radio transmitter, borne into and from upper atmosphere by balloon and parachute, sending out information on atmospheric conditions

196,891 of 280,887 in CSW24·also valid in NWL2023

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