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In universal polar stereographic coordinate system the eastings and northings are computed using which projection method ?

  • A.Polar aspect stereographic projection
  • B.Non-polar aspect stereographic projection
  • C.Polar aspect mercator projection
  • D.Non-polar aspect mercator projection

Answer: A

The universal polar stereographic (UPS) system uses the polar aspect stereographic projection to compute eastings and northings in the polar regions, north of 84 degrees N and south of 80 degrees S. It is the polar counterpart of UTM, which covers the rest of the world with transverse Mercator zones. A non-polar aspect stereographic projection would distort the polar regions, and Mercator projections, in either aspect, stretch distances toward the poles. Only the polar aspect stereographic projection is used.

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