Concept information
There is no term for this concept in this language.
PREFERRED TERM
DEFINITION
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The chart datum is the level of water that charted depths displayed on nautical charts are measured from. The chart datum is generally a tidal datum; that is, a datum derived from some phase of the tide. Common chart datums are lowest astronomical tide and mean lower low water.
(en)
Source: http://wiki.gis.com/wiki/index.php/Chart_datum
Created: 5/12/22
BROADER CONCEPT
- datum levels (en)
IN OTHER LANGUAGES
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Norwegian Bokmål
URI
http://aims.fao.org/aos/agrovoc/c_bd816e9e
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