Atmospheric circulation — is the large scale movement of air, and the means (together with the smaller ocean circulation) by which heat is distributed on the surface of the Earth. The large scale structure of the atmospheric circulation varies from year to year, but the… … Wikipedia
Atmospheric diffraction — is manifested in the following principal ways:* Fourier optics is the bending of light rays in the atmosphere, which results in remarkable visual displays of astronomical objects, such as depictions on this page.* Radio wave diffraction is the… … 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
Zone morte — Privés d oxygène, des organismes meurent, et leur décomposition amplifie le déficit en O2. Ici un fond marin en mer Baltique occidentale. Une zone morte est une zone hypoxique (déficitaire en oxygène dissous) située dans un environnement… … Wikipédia en Français
Zone marine protégée — Aire marine protégée Pour les articles homonymes, voir AMP. On appelle aire marine protégée (AMP) (de l anglais : marine protected area, MPA) ou zone marine protégée (ZMP) une zone exclusivement ou majoritairement marine où des mesures… … Wikipédia en Français
atmospheric circulation — ▪ meteorology any atmospheric flow used to refer to the general circulation of the Earth and regional movements of air around areas of high and low pressure. On average, this circulation corresponds to large scale wind systems arranged in… … Universalium
New Zealand's nuclear-free zone — Anti nuclear movement Australia · Austria · Canada France · Germany · India Japan … Wikipedia
Sierra Nevada subalpine zone — The Sierra Nevada subalpine zone refers to a biotic zone below treeline in the Sierra Nevada mountain range of California, United States. This zoneis positioned between the upper montane zone (such as red fir forest) at its lower limit, and tree… … Wikipedia
vadose zone — 1. The zone between the land surface and the water table [22]. 2. The zone between the land surface and the deepest water table which includes the capillary fringe. Generally, water in this zone is under less than atmospheric pressure, and… … Lexicon of Cave and Karst Terminology
Denver Convergence Vorticity Zone — The Denver Convergence Vorticity Zone (DCVZ) is an atmospheric phenomenon characterized by convergent winds east of the Denver metropolitan area, typically 50 to 100 km in length and oriented in a north south direction. This meteorological… … Wikipedia
phreatic zone — 1. Those parts of the earth’s crust in which all voids are filled with water under pressure greater than atmospheric [22]. 2. That part of the earth’s crust beneath the regional water table in which all voids, large and small, are ideally… … Lexicon of Cave and Karst Terminology