geopotential height

См. также в других словарях:

• Geopotential height — is a vertical coordinate referenced to Earth s mean sea level an adjustment to geometric height (elevation above mean sea level) using the variation of gravity with latitude and elevation. Thus it can be considered a gravity adjusted height. One… …   Wikipedia

• Geopotential — is the potential of the Earth s gravity field. For convenience it is often defined as minus the potential energy per unit mass, so that the gravity vector is obtained as the gradient of this potential, without the minus.For geophysical… …   Wikipedia

• geopotential of the tropopause — The point in the standard atmosphere where the temperature stops dropping and becomes constant. This is the dividing line between the troposphere and the stratosphere. It is called the tropopause. Geopotential is the potential energy of a unit… …   Aviation dictionary

• Normal height — Normal heights are heights above sea level, one of several types of height which are all computed slightly differently. Alternatives are: orthometric heights and dynamic heights. The normal height H * of a point is computed from geopotential… …   Wikipedia

• Atmospheric model — A 96 hour forecast of 850 mbar geopotential height and temperature from the Global Forecast System An atmospheric model is a mathematical model constructed around the full set of primitive dynamical equations which govern atmospheric motions. It… …   Wikipedia

• Geodesy — (pronEng|dʒiːˈɒdɪsi [OED] ), also called geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three dimensional time varying… …   Wikipedia

• Numerical weather prediction — Weather models use systems of differential equations based on the laws of …   Wikipedia

• Geostrophic wind — The geostrophic wind is the theoretical wind that would result from an exact balance between the Coriolis force and the pressure gradient force. This condition is called geostrophic balance. The geostrophic wind is directed parallel to isobars… …   Wikipedia

• Block (meteorology) — An example of an omega block over western North America in May 2006 Blocks in meteorology are large scale patterns in the atmospheric pressure field that are nearly stationary, effectively blocking or redirecting migratory cyclones. They are also …   Wikipedia

• Weather forecasting — weather forecaster redirects here. For other uses, see Weatherman (disambiguation). Forecast of surface pressures five days into the future for the north Pacific, North America, and north Atlantic ocean. Weather forecasting is the application of… …   Wikipedia

• Sudden stratospheric warming — A sudden stratospheric warming (SSW) is an event where the polar vortex of westerly winds in the Northern winter hemisphere abruptly (i.e. in a few days time) slows down or even reverses direction, accompanied by a rise of stratospheric… …   Wikipedia