Vol. 5, No. 1, 120-128, 2006
Marc Lennon, Sergey Babichenko, Nicolas Thomas, Vincent Mariette, Grégoire Mercier and Aleksei Lisin
Abstract The passive hyperspectral imager (CASI-2) and the
Fluorescent Lidar System (FLS-AU) have been installed onboard a fixed-wing
aircraft (Cessna 404). Test flights have been carried out over controlled
simulated oil pollution at sea off the coast of Brittany, France, in May 2004.
CASI data allowed very high spatial resolution (1 and 2 metres) slick maps to
be produced, and the polluted surface to be estimated. LIF spectra acquired by
FLS-AU allowed oil slick thickness to be locally estimated with approximate
spatial resolution of 25 metres along the flight track. The data fusion
procedure proved to be consistent with the radiative transfer model over a
polluted water area including a thin layer of oil, and allowed a high resolution
(1 metre) thickness map to be computed. As a result of the studies the location, extents, and volume of the oil spilled were
estimated from the maps. A critical study of the methodology used and a
discussion on the precision reached by the quantitative estimates is proposed. The
ways towards the design of an operational system including both passive and
active airborne optical sensors for supporting recovering operations are
discussed.
Citation EARSeL European Association of Remote Sensing Laboratories, Strasbourg, France BIS-Verlag
The demand for efficient detection, mapping and volume
estimation of oil pollution in the sea is growing. Reliable observation tools
are required to support monitoring flights against sea pollutions and to provide
guidance for maritime and airborne means of fighting such occurrences. The
present pilot projectaimed at the
evaluation of the combined use of airborne passive Hyperspectral Imagery (HI)
and Laser Induced Fluorescence (LIF) technologies for remote sensing of oil
spills in the sea.
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History
Submitted: 20 Jun 2005
Revised: 21 Feb 2006
Accepted: 07 Mar 2006
Published: 23 Mar 2006
Lennon M, S Babichenko, N Thomas, V Mariette, G Mercier & A Lisin, 2006.
Detection and mapping of oil slicks in the sea by combined use of hyperspectral imagery and laser-induced fluorescence.
EARSeL eProceedings, 5(1): 120-128
BIS Library and Information System, Carl von Ossietzky University of Oldenburg
ISSN 1729-3782