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Composite_reflecitivty_principle.png (486 × 468 pixels, file size: 159 KB, MIME type: image/png)
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Summary
| Description |
Français : Les précipitations sont sondées par plusieurs angles d'élévation d'un radar et le composite est formée des valeurs de réflectivité les plus intenses dans la colonne au-dessus de n'importe quel point au sol. Dans cette image, chaque angle sondé est montré (PPI), chacun ayant des données différentes au-dessus d'un point donné. Le composite de réflectivité, ou MAXR, indiquera donc en chaque point la valeur maximale au-dessus de ce point, quel que soit le PPI qui la note.
English: The strongest returned energy for each elevation angle in a volume scan is compiled into one image called, simply, composite reflectivity. Whereas the base reflectivity image is the first image available during a volume scan, the composite reflectivity image is one of the last views necessitated by the need for all elevation scans to be completed before this image can be produced. |
| Date | |
| Source | Composite Reflectivity |
| Author | US National Weather Service JetStream - Online School for Weather |
Licensing
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This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:55, 22 February 2016 | | 486 × 468 (159 KB) | Pierre cb | User created page with UploadWizard |
File usage
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Global file usage
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- Usage on fr.wikipedia.org
