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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
gradient wind — Any horizontal wind velocity tangent to the contour line of a constant pressure surface or an isobar. This movement of air is to the result of a combination of three forces: pressure gradient force, geostrophic force, and cyclostrophic force. In… … Aviation dictionary
gradient wind — /wind/ a wind with a velocity and direction that are mathematically defined by the balanced relationship of the pressure gradient force to the centrifugal force and the Coriolis force: conceived as blowing parallel to isobars. Cf. geostrophic… … Universalium
Low pressure area — A low pressure area, or low , is a region where the atmospheric pressure is lower in relation to the surrounding area. Tropical storms, extratropical cyclones, subpolar cyclones, and subarctic cyclones are called low pressure cells.Lows are… … Wikipedia
low albumin gradient ascites — ascites in which the serum ascites albumin gradient is less than 1.1 g/dL; called also exudative ascites … Medical dictionary
Low Energy Nuclear Reaction — Kalte Fusion bezeichnet Verfahren, die eine kontrollierte Kernfusion herbeiführen, ohne die hohen Temperaturen von plasmabasierten Fusionsreaktoren oder ein auf Trägheitseinschluß basierendes System einzusetzen. Einige der ersten Überlegungen… … Deutsch Wikipedia
Stream gradient — is the ratio of drop in a stream per unit distance, usually expressed as feet per mile or meters per kilometer. A high gradient indicates a steep slope and rapid flow of water (ie. more ability to erode); whereas a low gradient indicates a more… … Wikipedia
Serum-ascites albumin gradient — The serum ascites albumin gradient (SAAG) helps determine the cause of ascites.The SAAG is probably a better discriminant than older measures (transudate versus exudate) for the causes of ascites. [Runyon BA, Montano AA, Akriviadis EA, Antillon… … Wikipedia
Wind gradient — In common usage, wind gradient, more specifically wind speed gradientcite book | last = Hadlock | first = Charles | title = Mathematical Modeling in the Environment | publisher = Mathematical Association of America | location = Washington | year … Wikipedia
Drainage gradient — Water pooling at the entrance of a banked outercurve in the opposite lane (Photo taken in Sweden) Drainage gradient (DG) is a term in road technology, defining the resulting vector of a road surface cross slope (CS) and longitudinal gradient… … Wikipedia
Pressure-gradient force — The pressure gradient force is not actually a force but the acceleration of air due to pressure difference (a force per unit mass). It is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low… … Wikipedia