In Washington last week U. S. Weather Bureau officials cautiously told newshawks that they were having good luck with "air-mass analysis," a new weather forecasting technique which consists of a vertical examination of atmospheric conditions rather than a horizontal survey at Earth's surface. On five days during the previous week the Washington office received upper air data from Harvard's Blue Hill Observatory, where small sounding balloons were sent up with radio-meteorographs. These little gadgets contain a thermometer, hygrometer (humidity recorder), barometer, shortwave radio transmitter and batteries, encased in a streamlined...
To continue reading:
or
Log-In
