Tidal Datum Regions

ALL DATA PROVIDED ARE PROVISIONAL:  These data are very provisional and have not been updated with the new Epoch Datum measured by the National Weather Service.  Some statistical agencies use the term “Preliminary data” to describe the first released version of a series and “Provisional data” to describe subsequent versions prior to final amendment.  However, the two terms are often used interchangeably though users in general should have no great problem in understanding that data labeled either “preliminary” or “provisional” are subject to revision provided this is clearly highlighted by the agency in the release.  Clearly informing the use that the data is subject to revision is more important than the precise term used to describe such data.

Last Updated, January 06, 2000