Message Boards Message Boards

Global population distribution: what's a Valeriepieris circle, and where 99% of us live

Jari Kirma
Posted 1 year ago

enter image description here

Attachments:
DOWLOAD-DESKTOP-...nb
POSTED BY: Jari Kirma
6 Replies
Sort By:

enter image description here -- you have earned Featured Contributor Badge enter image description here Your exceptional post has been selected for our editorial column Staff Picks http://wolfr.am/StaffPicks and Your Profile is now distinguished by a Featured Contributor Badge and is displayed on the Featured Contributor Board. Thank you!
POSTED BY: EDITORIAL BOARD

This great! I used this recently to build another data visualization using your Valeriepieris circle parameters:

enter image description here

I was a bit surprised and also asked by other people why Tokyo and Java Island, Indonesia are not in the circle. But to my another surprise I found a research article where results are pretty similar ( DOI ):

enter image description here
POSTED BY: Vitaliy Kaurov
Jari Kirma
Jari Kirma
Posted 9 months ago

I checked the code used in that article some months ago, and it builds confidence on reasonable validity of my solution; it's certainly a separate, and different implementation for the search, yet produces basically the same result. Both rely on effectively the same dataset, so it better be good... :)
POSTED BY: Jari Kirma

This is very interesting data, and it produces very interesting maps. I was wondering what would be the best projection in this context, and I believe an equal-area projection could be most useful because it would allow us to compare population against area. If we also want an azimuthal projection, which I think is a good choice, then "LambertAzimuthal" would be the projection to use, perhaps with a centering at the center of one of these circles, like the orthographic map above.
POSTED BY: Jose Martin-Garcia
Jari Kirma
Jari Kirma
Posted 9 months ago

Choosing a good whole-planet projection is indeed a pain point for map of any kind, especially once one has learned how all projections have their limitations!

Some different centerings for Lambert azimuthal (equal area): enter image description here enter image description here enter image description here

And Mollweide: enter image description here enter image description here
POSTED BY: Jari Kirma

Yes, Mollweide is also a good choice, indeed. Thanks for the new maps!
POSTED BY: Jose Martin-Garcia
Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Tag limit exceeded
Note: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.
Reply Preview
Attachments
Remove
or Discard

Group Abstract Group Abstract