World Meteorological Organization:
Radiosonde train
World Meteorological Organization:
French mobile ground station
World Meteorological Organization:
Radar equipment
World Meteorological Organization:
US radio direction finder
World Meteorological Organization:
Radiosonde train
World Meteorological Organization:
Radiosonde balloons
World Meteorological Organization:
Radiosonde train
World Meteorological Organization:
Payerne 1956
World Meteorological Organization:
US radio direction finder
World Meteorological Organization:
Group photo
World Meteorological Organization:
Radiosonde balloon
World Meteorological Organization:
Radiosonde balloon
World Meteorological Organization:
Radiosonde balloon
World Meteorological Organization:
Radiosonde balloon
World Meteorological Organization:
Radiosonde equipment
World Meteorological Organization:
Radiosonde train