AUVer
Joined: 31 Jul 2007
Posts: 1
Location: MD
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 Posted: Tue Jul 31, 2007 6:49 am Post subject: Sound Reflections from water density changes |
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Hi,
I’m working on an AUV which will map (sonar) a polar lake (under the ice). The lake is stratified having near fresh water on top (glacier melt) and extremely salty water as depth, with a abrupt change (chemocline) at 12-14 meters. The density changes slowly from 0 to 12 meters (goes from 1000 kg/m3 to 1020 kg/m3) and then abruptly from 12 meters to 14 meters (goes from 1020 kg/m3 to 1065 kg/m3) and then changes slowly from 14 meters to the bottom at 45 meters (goes from 1065 kg/m3 to 1100 kg/m3).
My question is; does anyone know of any resources to understand the reflection and refraction that would occur due to this density change? Principally, I am concerned with total internal reflection, either entering or exiting the chemocline (12-14meters) and the impact on sonar imaging.
Thanks,
BH |
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