Helicopter-based lidar in remote sensing of coastal waters
- General Physics Institute of the Russian Academy of Sciences, Moscow (Russian Federation)
- Pontifical Catholic Univ., Rio de Janeiro (Brazil)
We have developed and tested onboard a helicopter Kamov-32 and a ship a versatile lidar system for monitoring the water pollution by oil products and dissolved organic matter as well and for measuring the concentration of chlorophyll {open_quotes}a{close_quotes} of phytoplankton in the ocean {open_quotes}effective{close_quotes} subsurface layer. This system can be also used for shallow sea bathymetry and for studying the physiological state of green plants and the elemental content of soil. The lidar setup includes: a Nd:YAG laser with frequency doubling (second harmonic pulse energy 200 mJ, pulse duration 10 ns, repetition rate 10 Hz); a receiving-transmitting device with a mirror telescope of 15 cm diameter; a polychromator; and a recording system consisting of a gated light amplifier and a CCD camera cooled to -10 C. The field experimental data on surface chlorophyll distribution and oil spills in the Black Sea and Guanabara Bay are presented.
- OSTI ID:
- 478150
- Report Number(s):
- CONF-970319--
- Country of Publication:
- United States
- Language:
- English
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