[Proj] Standard projection for Mediterranean basin

Luigi Ponti lponti at infinito.it
Mon Feb 15 13:23:09 EST 2010


Hello,
Just dropping a line to thank you all: your support on this topic 
definitely exceeded my wildest expectations.
Kind regards,
Luigi

On 15/02/2010 18:31, Jan Hartmann wrote:
> 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),
>> Photogrammetric Applications Division
>> American Society for Photogrammetry and Remote Sensing
>> and
>> Chief of Geodesy,
>> Center for GeoInformatics
>> Department of Civil Engineering
>> Patrick F. Taylor Hall 3223A
>> *LOUISIANA STATE UNIVERSITY*
>> Baton Rouge, LA  70803
>> Voice and Facsimile:  (225) 578-8536 [Academic]
>> Voice and Facsimile:  (225) 578-8925 [Research]
>> Honorary Life Member of the
>> Louisiana Society of Professional Surveyors
>> Member Emeritus of the ASPRS
>> Member of the Americas Petroleum Survey Group
>> ======================================================
>> http://www.asprs.org/resources/GRIDS/ 
>> <https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/%0Aexchweb/bin/redir.asp?URL=https://email.lsu.edu/%20exchweb/bin/redir.asp?URL=https://email.l>
>> ======================================================
>>
>> ------------------------------------------------------------------------
>> *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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