--- Begin Forwarded Message --- Date: Thu, 21 Oct 1999 09:39:37 -0400 (Eastern Daylight Time) From: Mark Thomas <[log in to unmask]> Subject: Re: Datums etc <fwd> Sender: Mark Thomas <[log in to unmask]> On Wed, 20 Oct 1999 16:35:17 -0400 Johnnie Sutherland <[log in to unmask]> wrote: > Some time ago I had a link to someone's web site which had an excellent > summary of datums, spheroids used in various parts of the world. I think the > site was in the UK but cannot be sure. Can anyone put me on to such a site? Here are several links on this and related topics from a bookmark file of mine. The first one has a chart of the various prime meridians with the relationship to Greenwich. PROJECTIONS / COORDINATES / DATUMS / ETC. http://www.konbib.nl/kb/skd/skd/mathemat.htm Mathematical data for bibliographic descriptions from Jan Smits, Koninklijke Bibliotheek http://www.nima.mil/GandG/pubs.html NIMA Publications on Geodesy and Geophysics http://www.utexas.edu/depts/grg/gcraft/notes/coordsys/coordsys.html Coordinate Systems Overview (from The University of Texas) http://www.best.com/~williams/avform.htm">Great Circle Distances by Ed Williams http://www.indo.com/distance/" How Far Is It? (crow-flies distances btwn cities) http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl Magnetic Declination (from NGDC) http://www.sopac.org.fj/presentations/GIS/ Projection Systems: Spheroid, Datum, Projections This seems to be no longer working (well, the URL leaves something to be desired). http://orc.dev.oclc.org:9000/LOGIN:entityClearLimits=1:entityChooseDb=1:sessionid=0:dbname=mapbib:next=html/mapbib_simple_search.html John Snyder's Map Projection Bibliography ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Mark Thomas / Public Documents & Maps / Perkins Library Duke University / Durham, NC 27708-0177 [log in to unmask] / voice: 919-660-5853 / FAX: 919-684-2855 The train ... traditional, yet environmentally sound. --Lisa Simpson --- End Forwarded Message ---
