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Stereographic Mystery Cache

Hidden : 2/5/2012
Difficulty:
2 out of 5
Terrain:
2 out of 5

Size: Size:   micro (micro)

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Geocache Description:




Stereographic Projection


The coordinates above are not those of the cache. The cache is at the following location:


N 44 53.ESG

W 065 08.G(E-2)S


Welcome to my Map Projections Series!

We all are familiar with coordinates as we all play this great game of geocaching, but how well do you know your map projections? Once you get the hang of solving these, you’ll be through them in a snap! This is my first attempt at a puzzle series – and I hope I’ve kept it pretty straightforward. Everything you need to solve is on this page. What’s in a name, anyway? Why, the names of some different projections of course!

In all cases 0 = 0

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Ever heard of the book “How to Lie with Maps”? Well, these are just seven more common map projections of hundreds throughout the world. Each projection can be used to emphasize a different area, useage or focus. They portray all or part of the round Earth on a flat surface, which cannot be done with out some distortion. Every projection has its own set of advantages and disadvantages. There is no "best" projection. The key lies in mapmaker selecting the one best suited to the task at hand, reducing distortion of the most important features.

Mapmakers and mathematicians have devised almost limitless ways to project the image of the globe onto paper.

Stereographic

The stereographic projection, in geometry, is a particular mapping function that projects a sphere onto a plane. The projection is defined on the entire sphere, except at one point — the projection point. Where it is defined, the mapping is smooth and bijective. It is conformal, meaning that it preserves angles and is neither isometric nor area-preserving: that is, it preserves neither distances nor the areas of objects.

Intuitively, then, the stereographic projection is a way of picturing the sphere as the plane, with some inevitable compromises. Because the sphere and the plane appear in many areas of mathematics and its applications, so does the stereographic projection; it finds use in diverse fields including complex analysis, cartography, geology, and photography. In practice, the projection is carried out by computer or by hand using a special kind of graph paper called a stereonet or Wulff net.
It is typically used in navigation, for topograhpic maps and for USGS maps of Antarctica, with focus on oceans, regions and seas in equitoral and mid-latitude areas, and it medium to large scales.

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All these placements were Winter Friendly when hiddden but one or two may not be if we get more than a foot of snow - for those caches, check the attributes; they won't be listed as winter friendly. Also, come spring some may require a little more bush stomping and might be in slightly wet areas - I'll update the attributes/comments when the snow melts and I can see the conditions.

The parking coordinates provide a good starting point to walk the entire series.


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Additional Hints (Decrypt)

Pnpur: ybj naq terra

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)