U.S. Navy's High-Resolution Radar Can See Individual Raindrops Inside a Storm
June 29, 2012 8:24 AM
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Radar can see individual raindrops from 2 km
Most people are familiar with radar imaging of storms from local news broadcasts and all the interruptions to your favorite programming during bad weather. The radar most of us are familiar with offers limited resolution when it comes to seeing what's actually going on inside the storm. The U.S. Navy, however, has a new high-resolution radar that offers vastly improved imaging capability.
The U.S. Naval Research Laboratory recently announced the Navy has a very high resolution Doppler radar that can actually see into a storm and image individual raindrops in the cloudburst. The breakthrough opens the door for improved monitoring applications that can be able to track and monitor weather and severe storms with significantly more accuracy.
"Similar to the traces left behind on film by sub-atomic particles, researchers observed larger cloud particles leaving well-defined, nearly linear, radar reflectivity "streaks" which could be analyzed to infer their underlying properties," NRL stated.
The Naval Research Laboratory used this "mid-course radar" to retrieve information on internal cloud flow and precipitation structure. The radar has been used in the past to track small debris shed during space shuttle missions during launch. It has the capability of imaging a cloud with the volume roughly equal to the small bus at a range of 2 km.
The researchers believe that the radar could help unlock the mysteries that are still unknown having to do with cloud and precipitation formation. These mysteries include things like the development and movement of large hail stones that cause billions of dollars in damage annually to crops and property in the United States.
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RE: Seeing shadows
7/2/2012 6:18:37 PM
Ballistic ones use astro navigation in addition to GPS. Achaic systems are quite popular when modern things don't work. ;)
Now-a-day we got gravity maps aside from the magnetic maps as well as new sonar stations. That's fairly good enough for a sub.
Such secrets are known by experts anyway, so what's the point to keep low level information?
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