Published: May 17th, 2013 at 3:51 pm ET
By ENENews
[...] The main body of radioactive surface plume of which activity exceeded 10 Bq m−3 travelled along 40° N and reached the International Date Line on March 2012, one year after the accident. A distinct feature of the radioactive plume was that it stayed confined along 40° N when the plume reached the International Date Line. [...]
A distinct feature of the radioactive plume was that it stayed confined along 40 N when the plume reached the International Date Line, as stated in Sect. 3.2. The radioactive plume travelled 1800 km (from 160 E to 178 E) for 270 days (9 months) (Fig. 5); therefore, an average zonal speed (u) of the surface radioactive plume was calculated to be about 8 cm s−1 which was consistent with the speed of the reported surface current of 4–16 cm s−1 in the region (Maximenko et al., 2009). [...]
We can also assume that the Fukushima radioactive plume moved with surface water [...]






