Symbols & Abbreviations
The following symbols and abbreviations may be used in the chartlets on this website…
| Symbol or Abbreviation | Description or Meaning |
|---|---|
| 5 3 |
All soundings in FEET |
| nm or M | Nautical miles |
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North Arrow shows direction of TRUE north |
| (4656.7/6033.2) | Latitude & Longitude in an abbreviated form used in text and on charts as DDMM.M/DDMM.M. Since latitude is always North and longitude always West in our area these letters are omitted. Example: 4656.7/6033.2 = 46° 56.7'N 60° 33.2'W |
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Approach Waypoints: given using the same abbreviated Lat/Lon annotation |
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Porthand buoys |
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Porthand daymark |
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Starboardhand buoys |
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Safe water mark such as mid-channel or landfall mark |
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Isolated danger mark stationed over a danger with navigable water around it |
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Light |
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Range board |
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Dangerous submerged rock |
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Rock awash at chart datum |
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Rock that uncovers at chart datum |
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Wreck with superstructure showing |
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Wreck submerged |
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Aquaculture area (fish, mussels, oysters, etc.) |
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Launching ramp |
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Prominent cliff |
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Suggested anchorage |
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Yacht Club, Marina, Marine facility |
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Hospital, Health Centre, Clinic |
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Vineyard |





















