Showing posts with label topographical maps. Show all posts
Showing posts with label topographical maps. Show all posts

August 30 – A Frigid Discovery...

Posted on August 30, 2020

Julius Johannes Ludovicus Ritter von Payer - in addition to having a really long name - had a pretty long career description: he was an officer in the Austro-Hungarian army,  he was a painter and the founder of a painting school "for ladies," he was a history and geography teacher and a professor at a military academy, he was a topographer and a mapmaker, he was a mountain climber with more than 60 peaks in the Alps in his list of "first person known to climb" list...

...and (pant, pant) he was an Arctic explorer!

It's that last bit that earned Payer the most fame. He participated in a German exploration of the Arctic, working as a topographer. That means he wrote and drew a detailed description of the natural features of the areas explored, including the shapes and altitudes of landforms, rivers, and lakes. The sketches and writings were later transformed into a map of the area.



August 30, 1873: Payer and co-explorer Karl Weyprecht discovered and named Franz Josef Land, a bunch of islands in the Arctic Ocean. 192 islands, to be exact!



The Soviet Union annexed the islands in 1926, and they are now part of the Russian Arctic National Park.

And they're pretty amazing:




Photographers love the islands for the wildlife and the icebergs:










May 23 – World Orienteering Day

Posted on May 23, 2019

(Fourth Wednesday of May)

A map.
A compass.
A stretch of unfamiliar wilderness.

And...a timer?



Orienteering is the name for a group of sports that deal with navigating in an unfamiliar landscape, while moving as quickly as possible.

In most events, the participants are given a specially-prepared topographical map. This kind of map shows features such as hills, mountains, ridges, valleys, and canyons, usually using contour lines.



The numbers show if the land is going upwards or downwards. In sections where lines are farther apart, the rise or decline in elevation is fairly gentle, but when lines are close together, the slope is very steep.

The "specially-prepared topographical map" means that it has more information than a regular topo map - information included so that the orienteering tasks are still very challenging - but are possible.

So...what are these orienteering tasks? 

Moving through the wilderness (or sometimes towns), the participants have to use their map-and-compass skills to find a series of locations, or "control points," which are typically marked with orange-and-white flags, and then to find the finish. Everyone has an electronic or paper control card that is presented at the Start, punched or marked at each control point, and then handed in at the Finish. Naturally, the winner is typically the person with the fastest time - AND who has hit every control point, of course - but because orienteering is often done with staggered start times, everyone has to wait until all participants are in to learn who won!





As you can imagine, participants are not given the special maps until their start time. People who start later don't get extra time to study the map!

As I write this, I used the words "moving" - and what I normally mean is running. Foot orienteering is the most popular sort in this sport. However, there is also orienteering on mountain bike, skis, canoe, car, and horseback.



 
Special types of  orienteering include Trail-O (trail orienteering), mountain marathoning, radio direction finding, Street-O (orienteering in a town or city), adventure racing, team / relay orienteering, night orienteering, micro-orienteering (mazes and labyrinths, sometimes set up indoors)...and I could go on! 

In a relay, the control card is handed off.
Beginners and kids sometimes do "string orientation," following a string along a course and noting what they find along the way. 

A few orienteering events are not timed but rather test participants' ability to precisely match the map. 


Orienteering tends to be much more popular in Europe than elsewhere in the world, and Scandinavians are especially into this sport. Out of 20 countries with the best world rankings in orienteering, Sweden leads with 157 medals, followed by Norway with 132. Finland is #4, and Denmark is #7. The only two non-European nations among the top 20 are Australia (#14) and New Zealand (#16); the United States isn't on the list!