We usually think about tracking objects, more than we do about how they are actually tagged. This BBC picture documentary shows the process scientists went through to tag walruses for observation. The best quote is, “The tags were deployed with three instruments: a crossbow, a CO2-powered gun, and a harpoon that the skipper had made.” You can follow the tagged walrus migration through the “Walrus Watch” map and website, “showing the animals’ day-to-day progress during the two-month project”
Part 2 of GIS on the Mac. This time we take a quick look at uDig.
I know I have been quiet on the blogging front this week, as I am trying to cram in catching up on grading work, lecturing, and preparing presentation for the big AAG conference next week in San Francisco, but I wanted to put up a quick note that the Indian Space Research Organisation (ISRO) released the first imagery from CARTOSAT-2, the 12th in the line of IRS remote sensing satellites, which was launched on January 10, 2007. The panchromatic imagery has a spatial resolution of 1 meter, and will be available for purchase commercially. India is looking to continue its presence in the international remotely-sensed data market, and
will also be using the new imagery for their own domestic mapping needs.
Via The Hindu