The airborne lidar LARSEN, a remote sensor for 
coastal mapping, is now used regularly by the 
Canadian Hydrographic Service for hydrographic 
surveys of Canada's coastal waters. Since 
1985, it has carried out surveys of, for 
example, the Cambridge Bay region in the North 
West Territories, the St Lawrence River, and 
the coast of Vancouver Island (Casey and 
Vosburgh, 1986). 
The laser fluorosensor, which was developed 
and flown for oilspill monitoring, is 
undergoing further upgrades to a survey system 
for marine pollution and water quality 
monitoring, under a program supported by the 
Department of Environment and others (Dick et 
al, 1990). 
CONCLUSION 
Sensor developments at CCRS include new 
airborne systems and techniques for signature 
measurement. The developments are supported by 
airborne data acquisition and pilot projects 
which provide improved understanding of the 
imaging processes related to earth 
observation. The sensor program has helped to 
establish advanced sensor technology in 
Canada, to develop application expertise, and 
to explore new application areas and target 
signatures that can be used for remote 
sensing. Major developments have been in the 
areas of synthetic aperture radar and 
multispectral imager systems. 
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