WIT Press


Compact Lidar System For Monitoring Pollution In The Ocean Shelf Zone

Price

Free (open access)

Volume

15

Pages

5

Published

1996

Size

431 kb

Paper DOI

10.2495/CENV960191

Copyright

WIT Press

Author(s)

A. Bunking, K. Voliak, R. Nunes & I. de Melo Carvalho

Abstract

We have developed and tested onboard a helicopter and a ship the versatile lidar system for monitoring the water pollution by oil products and a dissolved organic matter as well as for measuring the concentration chlorophyll "a" of phytoplankton in the ocean "effective" subsurface layer. This system can be also used for studying the physiological state of green plants and the elemental content of soil. The lidar setup includes: a YAG:Nd laser, compacted and stable to vibration, 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 15 cm dia; a polychromator; and a recording system consisting of a gated b

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