Seeking information (& contact info) for manufacturers (or lease/
rentals) of sensing equipment which can detect from surveillance
aircraft the ship discharges of shipboard sewage and sludge.

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Request for Question Clarification by thx1138-ga on 09 May 2003 14:50 PDT

Hello again wetinterests,

I think my previous answer also covered the sewage aspect, or are you
looking for another method of detection other than using SLAR?

"From the air it is notoriously difficult to distinguish between oil
and a variety of other unrelated phenomena and It is necessary to
verify initial sightings of suspected oil by over-flying suspect area
at a sufficiently low altitude to allow positive identification.
Phenomena that most often lead to mistaken reports of oil include:
cloud shadows, ripples on the sea surface, differences in the colour
of two adjacent water masses, suspended sediments, floating seaweed,
algal/plankton blooms, seagrass and coral patches in shallow water (as
shown in the image above), and sewage and industrial discharges."
http://www.itopf.com/aerial.html

All the best

THX1138

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Clarification of Question by wetinterests-ga on 09 May 2003 16:31 PDT

I am interested in arial platform-based operational systems that might
assist in the problem of detecting sewage spills (ship-based sewage or
sludge discharges).

Your earlier response did not identify a vendor expressly meeting such
a requirement.