Île Bonaventure - 02297

Station Information

Code: 02297

Province: Quebec

Location: 48.501111, -64.176

Type: Temporary

Operational: False

Owner: Canadian Hydrographic Service


Height of tide is the vertical distance between the surface of the sea and chart datum.

Heights - Relative to chart datum
ID Height(m) Date
Highest Astronomical Tide 1.16 N/A
Lowest Astronomical Tide 0.08 N/A
Higher High Water Large Tide 1.14 N/A
Lower Low Water Large Tide 0.1 N/A
Higher High Water Mean Tide 1 N/A
Lower Low Water Mean Tide 0.24 N/A
High Water Level 0.97 N/A
Mean Water Level 0.62 N/A
Low Water Level 0.28 N/A

Chart datum is the plane of vertical reference to which all charted depths and drying heights are related. More info

Datum Conversion
Vertical Datum Offset (m)
CGVD28 -0.5

The information contained in this product is established under the CD datum. The CHS does not establish and maintain other vertical datums such as CGVD28, CGVD2013, IGLD (1955) and IGLD (1985). References to these datums represent the best available information, to be used with caution and sound judgment where required, but it is not intended to be used for navigation.

Benchmark Number Elevation (m) Unique Label Established Condition Latitude Longitude More Info
3-1979 2.446 79L9513 1979 GOOD 48.50164 -64.174617 More Info
74L278 9.616 74L278 1991 GOOD 48.52233 -64.213382 More Info
91L9021 8.683 91L9021 1991 GOOD 48.50175 -64.174099 More Info