POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
This change provides the measurement datum for the water depth information.
CHANGE ESM_ref_water_depth_datum ALTER ENTITY pty_water_depth; ADD ref_water_depth_datum : OPTIONAL ref_water_depth_datum (*<desc> This is the code describing the datum from which the water depth is measured, such as mean sea level or maximum high water.*); END_ENTITY; ADD ENTITY ref_water_depth_datum (*<population>open*) (*<desc> This reference entity defines the types of water level datum.*) SUBTYPE OF (ref_code); UNIQUE si: identifier; END_ENTITY; END_CHANGE;