Best Setup for Mapping in Undeveloped Countries?
Floodimus asks: "My girlfriend lives and works in West Africa and on my next visit she has asked me to help her do some mapping of uncharted villages. I want to make this study really accurate and useful, so I am thinking about using high tech and low tech resources such as GPS and good old fashioned compasses, but I was wondering what the Slashdot crowd would recommend for GPS hardware (does GPS equipment from the US work over there?), field equipment, mapping software etc. I use both PCs and Macs and would like the software to run on the Mac, but it doesn't have to. What's the best, most rugged stuff you've used? Where are some resources that would help me out?"
does GPS equipment from the US work over there?
Ok, a quick explanation of how this stuff works is in order. GPS stands for Global Positioning System. The system consists of 24 or so satellites that provide nearly complete coverage of the globe at any given time. By capturing signals from more than one of these satellites, your receiver can calculate your position based on the last known position of the sats. Thanks to the precision and accuracy of modern electronic hardware, this calculation can be accurate to within 20 meters or less.
More info here
So to answer your question, of course GPS equipment can't be used over there! They use 220V AC and we use 110V AC. Where do you think you're going to find a charger? You need to get yourself a step down transformer, or you'll never be able to charge the equipment! Yeash, what are they teaching you kids these days?
Javascript + Nintendo DSi = DSiCade
does GPS equipment from the US work over there?
No. We made sure to send Africa very very degraded signals. How much does a meter of accuracy matter in a desert or jungle anyway?
pooptruck
Google Map, Google Earth or Google Satellite?
Wait, and it'll be built.
Rock that crushes, Paper & Scissors that don't matter.
I travel in the US with a GPS in my laptop bag (Garmin GPS V), but depending on where you travel in the world, you may want to insure it doesn't violate any local laws. For example in (don't mod me funny) Ex-Soviet Russia it is illegal in most cases to have GPS equipment. You can be thrown in jail and it may not be pleasant.
unless you get the discounted Global -except West Africa- Possitioning System.
http://www.watacrackaz.com
To use a GPS device in the southern hemisphere, (ie south of the equator) you have to hold it upside down.
My girlfriend lives and works in West Africa
Were you the guy in high school who had the girlfriend who went to "another school" and no one had ever met?
Just joshing....
Forget it. It won't last. Long distance relationships never do. She'll only break your heart.
You've got to be kidding....why would this bother them?
Light travels faster than sound. This is why some people appear bright until you hear them speak.........
Yes, indeed you must be careful. Anyone who's ever watched Gilligan's Island knows there's a lost tribe of headhunting canibals out there somewhere, just waiting for some well-meaning city folks to wander into their territory.
For the price of two regular laptops, get a Panasonic Toughbook. It will still be useable after exiting the far end of the digestive tract of the alligator that eats you.
Are you kidding? I'm writing this from a Panasonic CF-29...you could close it, beat the alligator to death with it, open it back up, and continue working. They're pricey, but great computers.
And yes, if one has the money for it, I would heartily recommend one of these for such a trip.