Determination of water parameters by the J.R.C. time resolved laser fluorosensor operating from an Agusta helicopterFunded under: JRC-REMSENS 4C
This paper describes the analysis of measurements performed with a Lidar fluorosensor for marine applications, which allows a fully spectro-temporal analysis of the signals returning from the water column or from its surface. The instrument has a moderate spectral resolution but a high temporal resolving power, which gives access to the depth dependence of the various signals and thereby increases the measurement information content with respect to a purely spectral Lidar. The time resolution also applied to the problem of the oil identification in a slick on the sea surface leads to an increased discriminating power. The laboratory's studies which helped to define the analysis procedures are summarised. In particular, the way in which the time dependence of the backscattering and Raman diffusion signals allow the measurement of the water optical attenuation coefficient is discussed. A practical fingerprinting procedure which makes use of the time-resolved fluorescence signatures of crude oils is presented.
Bibliographic Reference: Paper presented: International Symposium on Spectral Sensing Research, Maui (US), November 15-20, 1992
Availability: Available from (1) as Paper EN 37216 ORA
Record Number: 199310356 / Last updated on: 1994-11-29
Original language: en
Available languages: en