1

Due to some reason (internal storage system), I want to define a custom Transverse Mercator projection for some parts of the world where the origin is nearby an area of interest.

But I also need to cover the poles, and as I said I want to stick to Transverse Mercator projection - if possible.

Is there any reason why I should use another projection like UPS instead?

  • Many TM implementations will only show part of the world. Do you need to show the entire arctic/antarctic area? If so, TM won't work. – mkennedy Jul 2 at 23:19
  • I'm not showing anything on a map (which may sound weird, but it#s just stored for later use and conversion). – benjist Jul 2 at 23:24
  • Do you need to have data around the poles for more than 90 or 180 degrees of longitude? AKA on the opposite side of the world. If so, I think TM won't work. – mkennedy Jul 2 at 23:27
1

If your main area of focus is the poles (or in the areas along the Y axis between the poles), I would recommend using a Spherical Transverse Mercator projection. It will preserve the shape and areas near the poles and along the Y axis, while distortion will increase along the x axis moving away from the poles.

Spherical Transverse Mercator Projection

Chapter 3 in the link below contains a lot more information on Transverse Mercator Projections centered on different points, depending on your area of study.

The Mercator Projections - Peter Osborne, Edinburgh, 2013:

https://web.archive.org/web/20130930144834/http://www.mercator99.webspace.virginmedia.com/mercator.pdf

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.