[UW-GIS-L] vertical adjustement of 1947?

[David Finlayson]

It has been some time ago, but I recall reading a good review of NGVD 29 
in a report in the Engineering Library.  I searched for it and it may be 
the following:

International Symposium on the North American Vertical Datum (3rd : 1985 
: Rockville, Md.)

You may also find references in there that could lead to an answer.

David Finlayson

Derek Stuart wrote:

> Does anybody know anything about the 1947 vertical adjustment to the NGVD
> 1929 vertical datum.
> 
> I've noticed mention of it in a couple of NOAA Published Bench Mark Sheets
> (ie. http://co-ops.nos.noaa.gov/benchmarks/benchmarks_old/9431647.html).
> 
> The following line can be found in the above example:
> "NGVD reference is based on adjustment of 1947 and NOS levels of 1991."
> Can anybody explain this sentence to me?
> 
> Derek Stuart
>  _____    _    ____
> |_   _|  / \  |_  _| Derek Stuart, Graduate Student
>   \  \  /   \  / /   UW Civil and Environmental Engineering
>    \  \/ /\  \/ /    http://students.washington.edu/dstu
>     \   /  \   /     Office 206-616-9145 - Lab 206-616-3347
>      \ /    \ /      ICQ: 1723894
> 
> 
> _______________________________________________
> Uw-gis-l mailing list
> Uw-gis-l at u.washington.edu
> http://mailman.u.washington.edu/mailman/listinfo/uw-gis-l

-- 
David Finlayson
School of Oceanography
Box 357940
University of Washington
Seattle, WA  98195-7940
USA

Office: Marine Sciences Building, Room 112
Phone: (206) 616-9407
Web: http://students.washington.edu/dfinlays