Sea Level Datum. A geodetic datum is an abstract coordinate system with a reference surface (such as sea level) that serves to provide known locations to begin surveys and create maps In this way datums act similar to starting points when you give someone directions.
Datums from MDL Storm Surge – National Oceanic and Atmospheric Administration
A geodetic datum or reference frame is an abstract coordinate system with a reference surface (such as sea level) that serves to provide known locations to begin surveys and create maps NGS defines the official geodetic datums for all federal mapping activities in the US and its territories (see Table 1) as part of the National Spatial Reference System (NSRS).
NOAA Tides & Currents
Define sealevel datum sealevel datum synonyms sealevel datum pronunciation sealevel datum translation English dictionary definition of sealevel datum n The average level of the ocean's surface calculated as the arithmetical mean of hourly tide levels taken over an extended period and used as the.
Sealevel datum Article about sealevel datum by The Free
sealevel datum [ ′sē ¦levəl ‚dadəm] (engineering) A determination of mean sea level that has been adopted as a standard datum for heights or elevations based on tidal observations over many years at various tide stations along the coasts.
Datums
What is a datum? National Ocean Service
Datums and Reference Frames Datums National Geodetic Survey
Sealevel datum definition of sealevel datum by The Free
A synonym for Sealevel Datum of 1929 The geodetic datum is fixed and does not take into account the changing stands of sea level Because there are many variables affecting sea level and because the geodetic datum represents a best fit over a broad area the relationship between the geodetic datum and local mean sea level is not consistent from one location to another in either time or space.
