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Français : Principle de la double polarisation utilisée en radar. Une gouttelette prend une forme oblate quand elle augmente de masse et les ondes polarisées horizontalement et verticalement donneront des échos d'intensités différentes en revenant au radar. D'autre part, la grêle est plus ou moins circulaire et donc les retours seront égaux. D'autres objets ont des axes préférés. En comparant les retours verticaux et horizontaux avec d'autres données radars, il est possible d'estimer directement le type de cibles vues par le radar.
English: Principle of polarization use for radar. As water dropplets are usually oblate (flattened) as they become larger, the horizontally polarized wave will have a stronger return than the vetical one. Hail on the other hand has no preferred axis. Comparing the V and H returns will thus give information on the shape of the weather echos and on its type when combined with other data like reflectivity.
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This is a retouched picture, which means that it has been digitally altered from its original version. The original can be viewed here: Radar-polarisation.svg. Modifications made by Pierre cb.

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This image is a derivative work of the following images:

  • File:Radar-polarisation.svg licensed with Cc-by-sa-2.5
    • 2011-12-10T02:01:12Z Pierre cb 713x383 (31332 Bytes) Déplacement du texte pour qu'il entre dans l'image finale
    • 2006-11-11T13:47:48Z Flerhun 713x383 (30175 Bytes) Traduction et mise au format svg de http://upload.wikimedia.org/wikipedia/fr/9/94/Radar-polarisation.png

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current03:23, 22 October 2024Thumbnail for version as of 03:23, 22 October 2024713 × 383 (14 KB)Pierre cbFile uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for pt.
11:56, 12 December 2011Thumbnail for version as of 11:56, 12 December 2011713 × 383 (14 KB)Pierre cb== {{int:filedesc}} == {{Information |Description={{fr|1=Principle de la double polarisation utilisée en radar. Une gouttelette prend une forme oblate quand elle augmente de masse et les ondes polarisées horizontalement et verticalement donneront des é

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