Difference between revisions of "Mean Sea Level(glossary)"
(Page Creation) |
(Page Creation) |
||
| Line 1: | Line 1: | ||
| − | <blockquote>''The average level of the surface of the sea over all stages of tide and seasonal variations.''</blockquote> | + | <blockquote>(1)''The average level of the surface of the sea over all stages of tide and seasonal variations.''</blockquote> |
| − | Note to | + | <blockquote>(2)''The average height of the surface of the sea at a tide station for all stages of the tide over a 19-year period, usually determined from hourly height readings measured from a fixed predetermined reference level.''</blockquote> |
| + | |||
| + | Note to definition (1): Mean sea level in a local context normally means mean sea level for the region calculated from observations at one or more points over a given period of time. Mean sea level in a global context differs from a global geoid by not more than 2 m. | ||
===Sources=== | ===Sources=== | ||
ISO TC211. "Mean sea level." In: ''ISO TC211 Multilingual Glossary.'' Version from 2020-06-02. Concept ID: 284. Available at: https://isotc211.geolexica.org/concepts/284/ | ISO TC211. "Mean sea level." In: ''ISO TC211 Multilingual Glossary.'' Version from 2020-06-02. Concept ID: 284. Available at: https://isotc211.geolexica.org/concepts/284/ | ||
| + | |||
| + | ISO TC211. "Mean sea level." In: ''ISO TC211 Multilingual Glossary.'' Version from 2020-06-02. Concept ID: 1562. Available at: https://isotc211.geolexica.org/concepts/1562/, referencing to IHO Hydrographic Dictionary S-32, Fifth Edition. | ||
===Discussion=== | ===Discussion=== | ||
Revision as of 03:50, 29 April 2021
(1)The average level of the surface of the sea over all stages of tide and seasonal variations.
(2)The average height of the surface of the sea at a tide station for all stages of the tide over a 19-year period, usually determined from hourly height readings measured from a fixed predetermined reference level.
Note to definition (1): Mean sea level in a local context normally means mean sea level for the region calculated from observations at one or more points over a given period of time. Mean sea level in a global context differs from a global geoid by not more than 2 m.
Sources
ISO TC211. "Mean sea level." In: ISO TC211 Multilingual Glossary. Version from 2020-06-02. Concept ID: 284. Available at: https://isotc211.geolexica.org/concepts/284/
ISO TC211. "Mean sea level." In: ISO TC211 Multilingual Glossary. Version from 2020-06-02. Concept ID: 1562. Available at: https://isotc211.geolexica.org/concepts/1562/, referencing to IHO Hydrographic Dictionary S-32, Fifth Edition.
Discussion
None.