Mean sea level (NGVD) Definition | Law Insider - Mean sea-level
1 atmosphere (atm000 words in our free online dictionary higher elevations above sea ...网页Mean Sea Level. Arithmetic mean of all sea levels measured at hourly intervals over a long period usually the National …网页Mean Sea Level means altitude Derivation of Metocean Design and Operating ...网页An altitude MSL is expressed as a height above this level. Mean sea level (MSL): The average height of the surface of the sea for all stages of tide. A number preceding MSL indicates altitude in feet above mean sea level. (MSL) - The arithmetic mean of hourly water elevations observed over a specific 19-year tidal epoch,
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