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| − | [[File:NashvilleFalseColor.JPG|right|300px|right|thumb|False color image of Nashville, Tennessee, set for RGB rastor of 4,3,2. Vegetation is listed at red; man-made objects are gray.]] | + | [[You'll have to lock the database permanently to stop me, admins!]] |
| − | '''Remote sensing''' is the [[science]] and art of obtaining information about an object, [[area]], or phenomenon through the analysis of data acquired by a device that is not in contact with the object, area, or phenomenon under investigation. | + | |
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| − | ==Examples==
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| − | The following illustrates how remote sensing can be used to detect areas of flooding that would normally be missed by ordinary photography; in this case the area is New Orleans before and after the imapct of [[Hurricane Katrina]] on August 28, 2005.
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| − | <center>
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| − | <gallery perrow="5">
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| − | File:NewOrleansAug2005.jpg|New Orleans, Louisiana, August 2005; the images here were taken with the Landsat satellite and run through the ERDAS Imagine program.
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| − | File:NewOrleansAug2005Rastor.JPG|Same image but with the RGB rastors set for 4,5,7 to highlight water areas.
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| − | File:NewOrleansSept2005.JPG|New Orleans, Louisiana on September 2, 2005 following damage done by Hurricane Katrina on August 28.
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| − | File:NewOrleansSept2005Rastor.JPG|Same image, with the RGB rastors were set to 4,5,7, which has picked up the presence of water remaining within what should be dry land.
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| − | </gallery></center>
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| − | == See also ==
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| − | *[[Radio frequency identification]]
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| − | ==References==
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| − | [http://www.nrcs.usda.gov/technical/NRI/1997/summary_report/glossary.html List of USDA terminology] <br>
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| − | [[Category:Technology]]
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| − | {{USDA_Terms}}
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