Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Miwa, Kazuji; Obata, Hajime*; Suzuki, Takashi
Journal of Nuclear Science and Technology, 57(5), p.537 - 545, 2020/05
Times Cited Count：2 Percentile：14.79(Nuclear Science & Technology)This study investigated the vertical distribution of Iodine-129 (
I) which is mainly produced by European nuclear reprocessing plants in the Chukchi Sea and Bering Sea. I was found to be distributed almost uniformly in fallout level, and an increasing in I concentration levels caused by high I water inflow from the Atlantic Ocean was not observed. Additionally, we revealed the vertical distribution of iodide, one chemical form of iodine, from the Bering Shelf area to the Chukchi Sea for the first time. The increasing tendency of iodide near sea bottom was observed.
Suzuki, Takashi; Otosaka, Shigeyoshi*; Kuwabara, Jun; Nishioka, Jun*
no journal, ,
I concentrations in seawater from the Japan Sea and the Bering Sea were measured to evaluate its applicability as an oceanographic tracer. Surface seawater concentrations of I in the Japan Sea were higher than those in the Bering Sea, likely reflecting atmospheric transport patterns of I. Vertical profiles showed decreasing concentrations with depth, and in the Japan Sea, anthropogenic I was observed to reach bottom waters. The total inventory was higher in the Japan Sea, which is attributed to its unique circulation structure and topographic constraints. Furthermore, the turnover time of Japan Sea Bottom Water was estimated to be 200-520 years, demonstrating its usefulness as a tracer for ocean circulation.
