- 行业: Weather
- Number of terms: 60695
- Number of blossaries: 0
- Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
The level at which the atmospheric density becomes the same as the density of interplanetary space, which is usually taken to be about one particle per cubic centimeter.
Industry:Weather
The leeward motion of a ship due to wind. It may be expressed as distance, speed, or angular difference between course steered and course through the water. This is analogous to drift in air navigation.
Industry:Weather
The last water mass to contribute to the formation of North Atlantic Deep Water before it enters the southward path of the ocean conveyor belt. It occupies the central Labrador Sea with temperatures of 3. 0°–3. 6°C, salinities of 34. 86–34. 96 psu, and consistently high oxygen content.
Industry:Weather
The K process is generally viewed as a recoil streamer or small return stroke that occurs when a propagating discharge within the cloud encounters a pocket of charge opposite to its own. In this view, the J process represents a slowly propagating discharge that initiates the K process. This is the case for K changes in cloud discharges. It is reasonable to expect that cloud discharge K changes are similar to the in-cloud portion of ground discharges.
Industry:Weather
The irregular path through the air along which a lightning discharge occurs. The lightning channel is established at the start of a discharge by the growth of a leader, which seeks out a path of least resistance between a charge source and the ground or between two charge centers of opposite sign in the thundercloud or between a cloud charge center and the surrounding air or between charge centers in adjacent clouds.
Industry:Weather
The isotherm connecting places that have a mean temperature of 10°C (50°F) for the warmest month of the year. It was adopted by Supan (1879) as the climatic isopleth that most nearly corresponded to the arctic tree line, and later by Köppen (1900) as indicating the division between tundra climate and the tree climates.
Industry:Weather
The general term for dry substances suspended in the atmosphere, including dust, haze, smoke, and sand. Compare hydrometeor, igneous meteor, luminous meteor; see atmospheric phenomenon.
Industry:Weather
The Greek word for the cold northeast wind, bringing thunder and hail in winter. On the Tower of the Winds at Athens it is represented by an old man, well clad but with bare arms, tipping hailstones from a shield onto the country below.
Industry:Weather
The flow of fluid from a reservoir or water-bearing unit to an adjacent medium.
Industry:Weather
