Electric field intensity-measurements were made at eight stations near the 25 May 1955 tornado which devastated Udall, Kansas. Simultaneous records are reproduced, showing the electrical activity throughout the near passage ...

A simple method has been devised for taking shadow photographs of snow crystals, or of their melt water, without use of a lens. It permits study of the form, size, and mass characteristics at intervals of several minutes ...

It is shown that a spectrum covering a large range of frequencies can be found by superposing estimates of spectra of means over periods of different lengths. The method is illustrated by the power spectrum of temperature ...

The primary aim of this article is to derive a complete system of modified hydrodynamical equations which govern a large class of ?meteorological? motions of the atmosphere, but which cannot generate solutions corresponding ...

Equipment designed to detect variations in the rate of change of illumination from a small part of the sky during twilight was used in the hope of locating layers or regions of dust particles in the atmosphere. The ...

The experiment consisted of a total of twenty 24-hour numerical forecasts of the 500- and 200-millibar topography, prepared for periods during the spring and summer months. These forecasts, which were made with the barotropic ...

Data from the High Altitude Dust Diffusion Project have been analyzed, and the rates of growth of 18 smoke puffs produced in the upper troposphere and stratosphere are presented. There was an increase in the rate of growth ...

Correction to Volume 11, Issue 5, Article 373.

No Abstract Available

Subject to various approximations, a system of partial differential equations is developed which is capable of forecasting the height of and vertical motion at the various pressure surfaces. Various techniques of numerical ...