Technique for the remote detection of sea slicks

Details Technique for the remote detection of sea slicks Technique for the remote detection of sea slicks

1992-11-05

1994-03-22

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250253, 250301, 356301, G01N 2165

Patent

active

052967115

ABSTRACT:
A method and apparatus for remote detection of an oil slick at or near the surface of the water using a combination of two or more ultraviolet lasers and comparing the relative magnitude of the received Raman backscattering signal magnitudes to determine the existence of the oil slick. The use of two different laser frequencies provides for elimination of atmospheric transmission variations and wave modulation.

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patent: 3783284 (1974-01-01), McCormack
patent: 3899213 (1975-08-01), Fantasia et al.
patent: 4081215 (1978-03-01), Penney et al.
patent: 4123160 (1978-10-01), Caputo et al.
patent: 4945249 (1991-07-01), Grant et al.
Sato et al., "Laser Radar for Remote Detection of Oil Spills", Applied Optics, vol. 17, No. 23, Dec. 1978, pp. 3798-3803.
H. Visser, "Teledetection of the thickness of oil films on polluted water based on the oil fluoescense properties", p. 1746, Applied Optics, vol. 18, No. 11.
H, Hoge, R. N. Swift, "Oil film thickness meausrement using airbourne laser-induced water Raman backscatter", pp. 3269-3281, Applied Optics, vol. 19, No. 19.

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