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REPORT ABUSIVE REPLY
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Message Subject
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Laser from plane scanning queens ny last night
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Poster Handle
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Anonymous Coward |
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Post Content
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[ link to www.airborne1.com] This technology involves a scanning and ranging laser system that produces pinpoint accurate, high-resolution, topographic maps. The original technology has been in existence for 20-30 years, but the commercial applications for LiDAR generated topographic maps have only developed within the last decade. Today the entire process of airborne laser mapping is highly automated from flight planning, to data acquisition, to the generation of digital terrain models. ...
Makes sense.
They are making a topographic 3-D map of what is left of Breezy Point after Sandy.
Quoting: Burt Gummer Those systems use IR, they do not paint the landscape in visible green light...  It's not FLIR system they use for topographic mapping....suggest you read up....because you are clueless. [ link to books.google.com] :clues: Clueless?? surly you jest.. Perhaps you should consult that very link and directly below figure 2.36 it CLEARLY states that the laser used is a 900nm pulsed at 8khz. Hate to break it to ya, seeing as im clueless and all (LOL) but 900nm is the monochromatic single emission point USED. 900nm is infrared Einstein.. Common visible wavelengths as in low cost green laser pointers are 532nm. Anything below 400nm is getting into the UV spectrum, and anything above 680nm the IR, NIR at the lower point. THIS MEANS YOU DO NOT SEE IT... get it?  this might sound really dumb, but aren't lasers, when being used around people, required to be visible, for safety reasons.
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