Scientists normally monitor polar bear populations via tag and release programs, or visual surveys with low-flying aircraft. Seth Stapleton is trying a different, much less invasive technique - identifying bears in satellite images.
Human observers compared satellite images, finding large white dots that appeared in one image but not the other. Their identifications were confirmed by traditional methods.
Polar bear photo: Arturo de Frias Marques
Satellite photos: DigitalGlobe, doi:10.1371/journal.pone.0101513.g002
via Tumblr http://ift.tt/1tMyar7 November 06, 2014 at 07:37PM
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