E-LAYER

Domain	Definition
Aerospace	A division of the ionosphere, usually found at an altitude between 100 and 120 kilometers in the E-region. It exhibits one or more distinct maximums and sharp gradients of free electron density. It is most pronounced in the daytime but does not entirely disappear at night. Also called E1 - layer, Kennelly-Heaviside layer, Heaviside layer. See sporadic E-layer (under ionosphere), atmospheric shell, ionosphere.There is some evidence to indicate a second layer above the normal E-layer located at about 150 kilometers, and called the E2-layer. (references)
Source: compiled by the editor from various references; see credits.

Specialty Definition: E-layer

The E-layer is part of the ionosphere that influences the propagation of radio waves, especially in the mediumwave and lowershortwave bands. It is also called the Heaviside layer or the Kennelly-Heaviside layer, after physicists Edwin Kennelly and Oliver Heaviside.

During the daytime the solar wind presses this layer closer to the Earth, thereby limiting how far it can reflect radio waves. On the night side of the Earth, the solar wind drags the ionosphere further away, thereby greatly increasing the range which radio waves can travel by reflection, called skywave.

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-e-e-l-r-y"
	-1 letter: early, laree, layer, leary, leery, relay.
	-2 letters: aery, alee, aryl, earl, eely, eery, eyer, eyra, eyre, lear, leer, lyre, rale, real, reel, rely, yare, year.
	-3 letters: ale, are, aye, ear, eel, era, ere, eye, lar, lay, lea, lee, ley, lye, ray, ree, rya, rye, yar, yea.
	-4 letters: ae, al, ar, ay, el, er, la.
	Words containing the letters "a-e-e-l-r-y"
	+1 letter: delayer, eagerly, layered, relayed, sealery.
	+2 letters: aversely, delayers, easterly, empyreal, lawyered, layerage, leathery, meagerly, meagrely, parleyed, parleyer, pterylae, readerly, replayed, yarmelke, yearlies.
	+3 letters: adversely, agreeably, austerely, averagely, blaeberry, blarneyed, earnestly, electuary, enterally, eternally, execrably, exemplary, federally, generally, germanely, hemelytra, layerages, learnedly, legendary, minelayer, parleyers, parsleyed, rakehelly, reanalyze, relatedly, relaxedly, relevancy, renewably, repayable, roseately, seriately, severally, severalty, steelyard, teacherly, ternately, venerably, weatherly, yarmelkes.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.