INTERNATIONAL FIELD YEAR FOR THE GREAT LAKES-LAKE ONTARIO 



TOP: Fixed stations will measure natural and pollutant constituents 

 of waters emptying into the lake while ships, along track line, 

 will measure amounts of these same constituents temperature and 

 other parameters in the lake itself. Other stations in the 

 St. Lawrence Seaway will take the same measurements of water 

 leaving Lake Ontario. 



BOTTOM; IFYGL observation system. 



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