Abstract: Reliable induction electric field intensity meters were installed at the four corners of an 8.5 kilometer square. The values of the field intensity were transferred to a base laboratory via telephone lines and applied to ...

Abstract: The increase in the world-wide fine Particle pollution of the atmosphere between 1914 and 1962 is inferred from measurements of the electrical conductivity of the atmosphere over the surface of the North Atlantic. Systematic ...

Abstract: A season's.record of the electric-field intensity measured on the earth during active thunderstorms is evaluated. The records show that two basic types of storms exist. The most common, or positive, type of active storm ...

Abstract: The role of ionic diffusion in electrically charging drops in the atmosphere is investigated. Space charge and chemical adsorption being neglected, exact expressions are obtained for the charging rate and the average ...

Abstract: The magnitude and character of the electrification of natural cloud-droplets have been investigated. Measurements of the electric field at the surface of non-precipitating clouds show that, as a whole, they are electrically ...

Abstract: Light ions generated in the atmosphere by cosmic rays and radioactivity normally diffuse onto cloud droplets and establish a nearly symmetrical Gaussian distribution of positively and negatively charged droplets. When the ...

Abstract: The fundamental electromechanics of droplet electrification and coagulation within stable and unstable clouds is investigated. The analysis shows that atmospheric ions formed by cosmic rays or other means normally diffuse ...

Abstract: Thunderstorm-electrification processes that develop in clouds which are everywhere above the freezing temperature have been analyzed. Nearly equal numbers of highly electrified positive and negative raindrops are formed ...

Abstract: 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 ...

Abstract: The role of atmospheric electric fields in selectively charging raindrops is analyzed and compared with direct measurements made inside an active thunderstorm. Expressions are developed for the free charge transferred to ...