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Apparatus for and method of remotely sensing sub-surface water temperatures
Apparatus for and method of remotely sensing sub-surface water temperatures
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机译:遥感地下水温的装置和方法
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摘要
The subsurface temperature of a body of water such as an ocean is measured remotely by directing a laser beam deeply into the water and analyzing the resultant Brillouin and Rayleigh backscatter components. Wavelength shifted Brillouin scatter is mixed with the unshifted Rayleigh scatter in a self-heterodyne manner for each volume element of illuminated water and the frequency of the heterodyne signal is measured. This produces the desired temperature-depth profile of the water.
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