better maps

"A numerical simulation of global transport of atmospheric particles emitted from the Fukushima Daiichi Nuclear Power Plant"

http://www-aos.eps.s.u-tokyo.ac.jp/nakamura_lab/PDF/Takemura...

and

http://www.pnas.org/content/108/35/14422/F2.expansion.html

http://www.pnas.org/content/108/35/14422/F3.expansion.html