14 Projections for 2021 (Part 10)

Fri Oct 01, 2021 14 Projections for 2021 (Part 10)

If you wonder what this is about at all, you probably didn’t read the intro.

October: Strebe 1995

Strebe 1995
Creator	Daniel »daan« Strebe (1995)
Group	Lenticular
Property	Equal-area
Other Names	—
Remarks	It’s something that’s not supposed to look too horribly unfamiliar, it’s not supposed to be sliced up with interruptions, and most importantly the major technique I used was to push the distortion the distortion into the Pacific as much as possible and preserve the shapes of the land areas, while also keeping the map equal area. (cited from an interview at cartographicperspectives.org.) Here on map-projections.net there’s an article about Strebe 1995 and 2011.

Strebe 1995 is an equal-area projection that has very low angular distortion values according to… umm.
To be honest, I don’t know the distortion values of this projection. As far as I know, they have never been determined, and regrettably, I don’t have any tools to calculate the results according to the Airy-Kavraiskiy criterion, or Canters’ mean finite scale factor, or Goldberg & Gott’s metric or any other comparison scheme.

What I can say is that it indeed succeeds in keeping the worst distortions away from the continental areas (except Antarctica). Even better in this regards is its asymmetric “brother” Strebe 2011:

So why didn’t I chose that one for the calendar?
I wish I could remember that. Maybe it’s because we’re going to have an asymmetric projection next month and I wanted a bit of variety. Maybe it was because aesthetically, I prefer the symmetric variant. I honestly don’t know anymore.

Oh, well. It doesn’t matter. Suffice it to say that if you’re looking for an symmetric equal-area projection with low angular distortion values on land areas, the Strebe 1995 is a great choice.

That was the last equivalent projection of the calendar. In November and December, we’ll have aphylactic ones. In the course of September, however, I will (hopefully) come back to Strebe projections once more.
So long!