[Proj] MGRS invented by Germany?
mkennedy2 at earthlink.net
Fri Jan 22 17:39:23 EST 2016
>Date: Fri, 22 Jan 2016 10:31:18 -0500
>From: Charles Karney <charles.karney at sri.com>
>Subject: [Proj] MGRS invented by Germany?
>To: PROJ.4 and general Projections Discussions
> <proj at lists.maptools.org>
> M. F. Buchroithner and R. Pfahlbusch,
> "Geodetic grids in authoritative maps -- new
> findings about the origin of the UTM grid" (2016)
>has some interesting background on the origins of UTM and MGRS.
>In particular, the division of non-polar regions into 60 zones, the
>numbering of the zones, and the specific conventions adopted for MGRS
>all seem to have been borrowed by the US Army Map Service from the
>German military work in 1943-1944.
>Figures 3 and 8 show 2 wartime orthophotos of 1km squares in Estonia and
>Lithuania with designations (UTMREF), 35VLF6992 and 34UEG0578, which
>coincide with the present-day MGRS designations for these areas
>(respectively 59.451N 24.698E and 55.752N 21.088E).
>(The correspondence isn't exact because of differences in the datum and
>in the choice of the scale on the central meridian.)
>Charles Karney <charles.karney at sri.com>
>SRI International, Princeton, NJ 08543-5300
That looks like a very interesting article. Thank you for posting about it.
I've put in a request for our library to get a copy. Do they explain why "UTMREF"
was used? I would have expected UGKREF instead.
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