Mean High Water
From HandWiki
Short description: The average of all the high water heights observed over a period of several years
Mean High Water (MHW) is a Tidal Datum representing the average of all the daily tidal high water heights observed over a period of several years. In the United States this period spans 19 years and is referred to as the National Tidal Datum Epoch.[1] The most current MHW values are found in the North American Vertical Datum of 1988 (NAVD 88).
See also
- Chart datum – Level of water from which depths displayed on a nautical chart are measured
References
- ↑ "Tidal Datums". tidesandcurrents.noaa.gov. http://tidesandcurrents.noaa.gov/datum_options.html.
External links
 |
