Shortwave radio — Shortwave can also refer to a shortwave trough meteorology. A solid state, analog shortwave receiver Shortwave radio refers to the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between… … Wikipedia
atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… … Universalium
Low-pressure area — This depiction of the Hadley cell shows the process which sustains low pressure areas. Diverging winds aloft allow for lower pressure and convergence at the Earth s surface, which leads to upward motion. A low pressure area, or low , is a region… … Wikipedia
Cloud — For other uses, see Cloud (disambiguation). Cumulus cloudscape over Swifts Creek, Australia A cloud … Wikipedia
Jet stream — Jet streams are fast flowing, relatively narrow air currents found at the tropopause, the transition between the troposphere (where temperature decreases with height) and the stratosphere (where temperature increases with height), [United States… … Wikipedia
Cyclone Monica — Severe Tropical Cyclone Monica Category 5 cyclone (Australian scale) Category 5 Tropical cyclone (SSHS) Severe Tropical Cyclone Monica near peak intensity Formed 17 … Wikipedia
Cyclone Fay — Severe Tropical Cyclone Fay Category 5 cyclone (Australian scale) Category 4 cyclone (SSHS) Tropical Cyclone Fay on 22 March 2004 Formed 12 March … Wikipedia
1993 Storm of the Century — Storm of the Century (1993) Satellite image by NASA of the superstorm on March 13, 1993, at 10:01 UTC. Storm type: Cyclonic blizzard, Nor easter Formed … Wikipedia
Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… … Wikipedia
Atmospheric convection — Conditions favorable for thunderstorm types and complexes Atmospheric convection is the result of a parcel environment instability, or temperature difference, layer in the atmosphere. Different lapse rates within dry and moist air lead to… … Wikipedia
