|
Definition of Chart datum
1. Noun. (nautical) the level below which depths are indicated and above which heights of the tides are expressed; usually mean level of low water at a spring tide ¹
¹ Source: wiktionary.com
|
1. Noun. (nautical) the level below which depths are indicated and above which heights of the tides are expressed; usually mean level of low water at a spring tide ¹
¹ Source: wiktionary.com