 Discus buoys are round and moored in deep ocean locations , with a diameter of 10 metres ( 33 ft ) to 12 metres ( 39 ft ) . The aluminum 3 @-@ metre ( 10 ft ) buoy is a very rugged meteorological ocean platform that has long term survivability . The expected service life of the 3 @-@ metre ( 10 ft ) platform is in excess of 20 years and properly maintained , these buoys have not been retired due to corrosion . The NOMAD is a unique moored aluminum environmental monitoring buoy designed for deployments in extreme conditions near the coast and across the Great Lakes . NOMADs moored off the Atlantic Canadian coast commonly experience winter storms with maximum wave heights approaching 20 metres ( 66 ft ) into the Gulf of Maine . 
 Discus buoys <a href='drop_aux' title='1'><mark>are</mark></a>round and moored in deep ocean locations , with a diameter of 10 metres ( 33 ft ) to 12 metres ( 39 ft ) . The aluminum 3 @-@ metre ( 10 ft ) buoy <a href='drop_aux' title='2'><mark>is</mark></a>a very rugged meteorological ocean platform <a href='null_relcl' title='3'><mark>that</mark></a><a href='got' title='4'><mark>has</mark></a> long term survivability . The expected service life of the 3 @-@ metre ( 10 ft ) platform is in excess of 20 years and properly maintained , these buoys <a href='been_done' title='5'><mark>have</mark></a> not been retired due to corrosion . The NOMAD <a href='drop_aux' title='6'><mark>is</mark></a>a unique moored aluminum environmental monitoring buoy designed for deployments in extreme conditions near the coast and across the Great Lakes . NOMADs moored off the Atlantic Canadian coast commonly experience winter storms with maximum wave heights approaching 20 metres ( 66 ft ) into the Gulf of Maine . 
Discus buoys round and moored in deep ocean locations , with a diameter of 10 metres ( 33 ft ) to 12 metres ( 39 ft ) . da aluminum 3 @-@ metre ( 10 ft ) buoy a very rugged meteorological ocean platform got long term survivability . The expected service life of tda3 @-@ metre ( 10 ft ) platform is in excess of 20 years and properly maintained , these buoys done not been retired due to corrosion . ThdaOMAD a unique moored aluminum environmental monitoring buoy designed for deployments in extreme conditions near thedaast and across the daat Lakes . NOMADs moored off the Atlantic Canadian coast commonly experience winter storms wit maximum wave heights approaching 20 metres ( 66 ft ) into the Gulf of Maine .