An extensive dust devil census taken near Tucson, Ariz., has provided, from two independent areas, quantitative information on the relation of environmental conditions to the spatial distribution, frequency and duration ...

Falling rain changes sea surface conditions, because of its different salinity, different temperature, and its momentum. Experimental evidence of the action of these three factors has been gathered using artificial and ...

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A computer can be used to calculate look angles for automatic picture transmission (APT) receiving stations. This method eliminates the laborious use of the plotting board and overlays, and enables the APT operator to have ...

Conventional R-meter theory (which ignores boxcar-ing and receiver noise) is briefly reviewed. The R-meter reading of a noisless, boxcar-ed radar is derived and compared to that predicted by the conventional theory. It is ...

Extant physical models allow the hypothesis that seeding may produce either increases or decreases in hailfall. Present technology for delivery of seeding materials permits seeding with higher concentrations and greater ...

Tetroon flights made at the National Reactor Testing Station, Idaho Falls, during the past few years have provided values of eddy velocity within the planetary boundary layer. In this desert-like terrain the root mean ...

Two techniques are described for measuring air density averaged over lines from several hundred meters to several tens of kilometers in length. With only rough approximations of water vapor, an accuracy of 1% or better ...

The production of the low temperatures which are responsible for ice fog in inhabited areas of interior Alaska would appear to be a classic example of clear sky radiative cooling under nearly polar night conditions. However, ...

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