The 2020 update to the International Great Lakes Datum, the official reference system used to measure water level heights in the Great Lakes, connecting channels, and the St. Lawrence River system.
Coordinating Committee on Great Lakes Basic Hydraulic and Hydrologic Data
Similarity to Source
Restyled : The specification includes information about its context that is not explicit in the specification in the external source.
Remarks
Unlike the previous two IGLDs, this datum update will use a geoid-based vertical datum that will be accessible using global navigation satellite systems (GNSS) such as the Global Positioning System (GPS).
INT1
S4
Management Details
Proposal Type
Addition
Submitting Org
IHO Secretariat
Successor
--
Date Proposed
2022-04-04
Predecessor
--
Date Accepted
2022-04-04
Proposed Change
Add as new enumerate value for attribute verticalDatum.
KHOA Acknowledgements