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GRACE_globe_animation.gif (455 × 455 pixels, file size: 2.63 MB, MIME type: image/gif, looped, 36 frames, 5.4 s)


Summary

Description
English: This visualization of a gravity model was created with data from NASA's Gravity Recovery and Climate Experiment (GRACE) and shows variations in Earth’s gravity field.

Gravity is determined by mass. Earth’s mass is not distributed equally, and it also changes over time.

The colors in this image represent the gravity anomalies measured by GRACE. One can define standard gravity as the value of gravity for a perfectly smooth 'idealized' Earth, and the gravity 'anomaly' is a measure of how actual gravity deviates from this standard. Red shows the areas where gravity is stronger than the smooth, standard value, and blue reveals areas where gravity is weaker. Red represents an acceleration of 5·10⁻⁴ m/s², blue represents -5·10⁻⁴ m/s², for a legend of the colors see File:Geoids sm.jpg.

GRACE is a collaborative endeavor involving the Center for Space Research at the University of Texas, Austin; NASA's Jet Propulsion Laboratory, Pasadena, Calif.; the German Space Agency and the German Research Center for Geosciences, Potsdam.

More information on the GRACE mission is online at http://www.csr.utexas.edu/grace/ and http://grace.jpl.nasa.gov/.
Español: Esta visualización de un modelo de gravedad se creó con los datos de GRACE (Gravity Recovery and Climate Experiment de NASA) y muestra las variaciones de la gravedad de la Tierra.

La gravedad depende de la distribución de masa. La masa de la Tierra no se distribuye por igual, y también cambia con el tiempo.

Los colores en esta imagen representan las anomalías de la gravedad medidas por GRACE. Uno puedeiye definir 'gravedad estándar' como el valor de la gravedad para una Tierra 'idealizada' como perfectamente lisa, y la 'gravedad anómala' es una medida de cómo la gravedad real se desvía del valor ideal. El rojo representa las áreas donde la gravedad es mayor al valor ideal, y el azul muestra áreas donde la gravedad es más débil. El rojo representa una aceleración de 5·10⁻⁴ m/s², azul representa -5·10⁻⁴ m/s², para una leyenda de los colores ver File:Geoids sm.jpg.

GRACE es un esfuerzo de colaboración entre el Centro de Investigaciones Espaciales de la Universidad de Texas, Austin; Jet Propulsion Laboratory de la NASA en Pasadena, California; el Centro de Investigación Alemán de Geociencias y la Agencia Espacial Alemana, Potsdam.

Más información sobre la misión GRACE en http://www.csr.utexas.edu/grace/ y http://grace.jpl.nasa.gov/.
Magyar: Ezt a gravitációs modellt a NASA Gravitációs Helyreállítás és Éghajlat Kísérlete (GRACE) állította elő, és a Föld gravitációs mezőjében fellépő eltéréseket mutatja.

A gravitáviót a tömeg határozza meg. A Föld tömege nem egyenletesen oszlik el, és időben is változik.

A kép színei a gravitációs mező GRACE által mért anomáliáit mutatják. A standard gravitációt úgy határozhatjuk meg, mint a tökéletesen egyenletes "ideális" Föld gravitációja, és a gravitációs "anomália" annak a mértéke, hogy a tényleges gravitáció mennyire tér el ettől a standard értéktől. A piros szín mutatja azokat a területeket, ahol a gravitáció erősebb az átlagnál, a kék pedig azt, ahol gyengébb.

A GRACE egy összefogó együttműködés a University of Texas Űrkutatási Központja (Austin), a NASA Sugárhajtás Laboratóriuma, a Német Űrkutatási Intézet és a Német Földtudományi Kutatási Központja között.

További információ a GRACE projektről: http://www.csr.utexas.edu/grace/ és http://grace.jpl.nasa.gov/ .
Date
Source http://photojournal.jpl.nasa.gov/catalog/PIA12146
Author NASA/JPL/University of Texas Center for Space Research.
Media of the day This file was selected as the media of the day for 22 February 2015. It was captioned as follows:
English: This visualization of a gravity model was created with data from GRACE and shows variations in Earth’s gravity field.
Other languages
Čeština: Vizualizace gravitačního modelu vytvořeného na základě dat, získaných z projektu Gravity Recovery And Climate Experiment (GRACE), ukazujícího proměnnou intenzitu zemského gravitačního pole.
English: This visualization of a gravity model was created with data from GRACE and shows variations in Earth’s gravity field.
中文（简体）：引力量测及气候监控卫星收集的地球引力场数据

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current22:48, 20 August 2009Thumbnail for version as of 22:48, 20 August 2009455 × 455 (2.63 MB)Maddox2{{Information |Description={{en|1= This visualization of a gravity model was created with data from NASA's Gravity Recovery and Climate Experiment (GRACE) and shows variations in Earth’s gravity field. Gravity is determined by mass. Earth’s mass is n

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