Mapping Of Water Skin Layer Pollution In Brazilian Coastal Waters By A Portable Diode Lidar

A new approach of the backscatter lidar technique is proposed for remote sensing of water surface pollution monitoring. We used a specially designed portable diode eye-safe backscatter lidar to probe oil and other pollutant spills on the water surface and suspended inside water by their light interacting within the skin layer This allows one to detect and chart, even in an automated long-term mode, to map of pollution and dynamics of it's spreading over the water surface by the lidar installed on a moving platform such as ship, helicopter or airship. Examples of the dynamic of insoluble pollutant in Guanabara Bay's sea water near a small river entrance are presented. A new approach to increase the pollutant's sensitivity by using double pass probing of the skin water layer is demonstrated and discussed.