25.09.2011Russian World Map: a topographical map serie 1:2500000, 234 Map sheets.
The map projection is a composed system:
- two polar zones (from ±90° to ±60°
in latidute) are constructed on the polar azimutal eqidistat
projection with the standard parallel ± 76°, for which the local scale factor along meridians
equals 0.99.
- Four other zones (two for each hemisphere)
are based on the equidistant conic projection (De
L'Isle- Projection):
- the first zone from ±24° to ±64° with
standard parallels ±32° and ±64°,
- and the second zone from 0 to ±24°,
with standard paralles ±4° and ±21°
