2021-10-22 12:48:15.0 [tstevens] insert Definition (id: null text: An average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured. language code: en);
2021-10-21 09:21:18.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (MEAN SEA LEVEL [f3ea8884-87a8-4a12-96d5-98e21a9fa2c7,778235] - SEA LEVEL [9ac7a1c5-4179-47bc-8589-ebaa90d6cbd1,778170]);
SEA LEVEL
MEAN SEA LEVEL
An average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured.