[OSRS-PROJ] Unknown USSR projection

[Paul Selormey]

Hello,
Is it, the Map Projections - A Reference Manual 
(Lev M. Bugayevskiy, John P. Snyder)?

My copy (with Reprinted 1998, 2000, 2002) is by 
Taylor & Francis Ltd.

Best regards,
Paul.

----- Original Message ----- 
From: "Clifford J Mugnier" <cjmce at lsu.edu>
To: <osrs-proj at remotesensing.org>
Sent: Monday, March 08, 2004 11:24 PM
Subject: Re: [OSRS-PROJ] Unknown USSR projection


> 
> 
> 
> 
> The late John P. Snyder co-authored a book on Russian projections with a
> Bugayevsky.  It is published by the University of Chicago Press.  That is
> the best source of clure in English that I can think of.
> 
> Cliff Mugnier
> LOUISIANA STATE UNIVERSITY
> 
> Hi,
> 
> I wondered if anybody can help me identify a projection. I need to
> digitize some range maps from a book on the birds of the USSR: all the
> maps share the same basemap but the book itself contains no projection
> details. The image is on the web:
> http://www.bio.ic.ac.uk/research/iowens/orme/FlintMap.png.
> 
> The only latitude or longitude mark on the map is the arctic circle: as
> far as I can make out this is an arc from a circle, although there is a
> hint that at the edges of the map the arc may turn down away from the
> circle. I've tried identifying 10 degree lines of latitude and
> longitude from locations around the map edge and that suggests to me
> that the map is projected on something like a equidistant conic or
> albers projection. What I've got so far:
> 
> * the central meridian is around 105 E.
> * the longitude lines look like they converge on the centre of the
> circle, although if I try and draw them in from geography, they don't
> converge very well.
> * a degree of longitude is about 0.4 degrees of arc on the projected
> map.
> * the latitude lines don't seem to be equally spaced - in particular,
> the 80-70 N gap is wider than the other three latitudinal spacings.
> 
> I can't get it to fit - has anyone got any suggestions for projections
> or projection parameters? It doesn't help that I suspect the map is
> rather inaccurately drawn.
> 
> Thanks,
> David
> 
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