atmospheric electric field
Also found in: Acronyms.
atmospheric electric field[¦at·mə¦sfir·ik i¦lek·trik ′fēld]
The atmosphere's electric field strength in volts per meter at any specified point in time and space; near the earth's surface, in fair-weather areas, a typical datum is about 100 and the field is directed vertically in such a way as to drive positive charges downward.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.