[Proj] Standard projection for Mediterranean basin

Jan Hartmann j.l.h.hartmann at uva.nl
Mon Feb 15 12:31:45 EST 2010


Could you explain the relationship between Authalic Latitude and Equal 
Area projections? There is an article by John Snyder at 
http://www.jstor.org/stable/2562645?seq=1, but it's a bit above my 
mathematical head.

Jan

On 15-2-2010 18:01, Clifford J Mugnier wrote:
> So?
> Keep the parameters and just use Authalic Latitude.
> Easy.
> Clifford J. Mugnier, C.P., C.M.S.
> Past National Director (2006-2008),
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> ------------------------------------------------------------------------
> *From:* proj-bounces at lists.maptools.org on behalf of Gerald I. Evenden
> *Sent:* Mon 15-Feb-10 08:30
> *To:* PROJ.4 and general Projections Discussions
> *Subject:* Re: [Proj] Standard projection for Mediterranean basin
>
> On Sunday 14 February 2010 11:46:30 pm Clifford J Mugnier wrote:
> > From 1925 to 1946, there was a "British Grid" used by the Allied 
> Forces in
> > the Mediterranean.  The British Army (GSGS) established the 
> "Mediterranean
> > Zone" for the secant Lambert Conical Orthomorphic Projection where the
> > central meridian was 29° East of Greenwich, and the latitude of 
> origin was
> > 39° 30' N, the scale factor at origin was 0.99906, the False Easting was
> > 900 km, and the False Northing was 600 km.
> >
> > See my column in PE&RS for December of 2002 on Greece.
> >
> > Clifford J. Mugnier, C.P., C.M.S.
>         ...
>
> I had the inference that the request was for an equal-area 
> projection---a mode
> that I consider preferable for thematic purposes.
>
> --
> The whole religious complexion of the modern world is due
> to the absence from Jerusalem of a lunatic asylum.
> -- Havelock Ellis (1859-1939) British psychologist
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