Free-air anomaly

Free-air anomaly

In geophysics, a free air anomaly is the difference between observed gravity and theoretical gravity that has been computed for latitude and corrected for elevation of the station above or below the geoid, by application of the normal rate of change of gravity for change of elevation, as in free air.

According to the Encyclopedic Dictionary of Applied Geophysics (Robert E. Sheriff, 2002, Tulsa USA), the free to air correction is 0.3086 mGal/m (3.086 µm/(s²·m)).

ee also

* gravity anomaly
* physical geodesy


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • free air anomaly — The difference between observed gravity and theoretical gravity that has been computed for latitude and corrected for elevation of the station above or below the geoid, by application of the normal rate of change of gravity for change of… …   Military dictionary

  • Anomaly — An anomaly is any occurrence or object that is strange, unusual, or unique. In the following particular contexts it may refer to:Astronomy* Eccentric anomaly, intermediate value used to compute the position of a celestial object as a function of… …   Wikipedia

  • Gravity anomaly — A gravity anomaly is the difference between the observed gravity and a value predicted from a model. Geodesy and geophysicsIn geodesy and geophysics, the usual model is the surface of a global spheroid (ellipsoid of Hayford or WGS84) by rather… …   Wikipedia

  • Bouguer anomaly — In geodesy and geophysics, the Bouguer anomaly (named after Pierre Bouguer) is computed from a free air anomaly by computationally removing from it the attraction of the terrain, the Bouguer reduction .In case where the effects of terrain are… …   Wikipedia

  • Naval Air Station South Weymouth — NAS South Weymouth in 1954 IATA: NZW – ICAO: KNZW – FAA LID: NZW …   Wikipedia

  • Physical geodesy — [ NOAA)] Physical geodesy is the study of the physical properties of the gravity field of the Earth, the geopotential, with a view to their application in geodesy.Measurement procedureTraditional geodetic instruments such as theodolites rely on… …   Wikipedia

  • аномалия Фая — Нрк. аномалия в свободном воздухе Аномалия силы тяжести, вычисленная с поправкой Фая. [ГОСТ Р 52334 2005 ] аномалия Фая Аномалия ускорения свободного падения с поправкой Фая. [ГОСТ 24284 80] Недопустимые, нерекомендуемые аномалия в свободном… …   Справочник технического переводчика

  • аномалия в свободном воздухе — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN free air anomaly …   Справочник технического переводчика

  • Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …   Universalium

  • World Geodetic System — The World Geodetic System defines a reference frame for the earth, for use in geodesy and navigation. The latest revision is WGS 84 dating from 1984 (last revised in 2004), which will be valid up to about 2010.Earlier schemes included WGS 72, WGS …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”