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These buoys are placed in prominent locations, and transmit data on Sea Conditions and Meteorological Conditions from their respective locations. |
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They carry instruments/devices. |
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Devices are either in the float or slung beneath them to any depth. |
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Buoys are either moored or drifting. |
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They are colored yellow, marked "ODAS" with an identification number and carrying a small plate showing whom to inform if the buoy is recovered. |
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Moored buoys may be as much as 12m in diameter and 2-3m in height, up to 18T in weights. |
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May be anchored any parts of ocean irrespective of depth. |
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Carry visible aerials. |
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Show flashing yellow light, 5 flashes every 20s. |
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As far as possible, position of moored buoys are widely promulgated and charted if of permanent nature. |
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They are to be given wide berth of 1 mile, 2.5 miles by vessels towing underwater gears. |
Figure: ODAS buoy
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About 0.75m in diameter, 2m from top to bottom. |
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Do not exhibit lights. |
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Do not carry visible aerials. |
Source: The mariner's handbook NP-100.
Updated: 29 Sep 2007