AI Article Synopsis
- - A long-range atmospheric transport model was developed to simulate the deposition of 210Pb in Japan and its surrounding waters, focusing on 222Rn and its radioactive progenies.
- - The model's monthly simulations for winter showed good alignment with real data, except for an underestimate in Aomori, highlighting significant winter deposition along the Japan Sea coast (nearly 200 Bq m-2).
- - Heavy 210Pb deposition formed a narrow band along the coast, with deposition amounts positively linked to the height of nearby mountains, indicating terrain influence on deposition patterns.
Article Abstract
A three-dimensional long-range atmospheric transport model for 222Rn and its progenies was applied to simulate 210Pb deposition in Japan and its adjacent waters. Monthly precipitation and 210Pb deposition simulated by the model for winter months were favorably compared with observational data although they were exceptionally underestimated in Aomori. The large monthly deposition along the Japan Sea coast lines during winter was successfully simulated by the model to be nearly 200 Bq m-2, which was contrasted by about 10-fold smaller deposition in other regions. It was also pointed out that the heavy deposition areas formed a narrow band structure along the coastline with width of several tens of kilometers and 210Pb deposition amount positively correlated with the height of mountains located leeward of the heavy deposition areas.
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| http://dx.doi.org/10.1093/rpd/ncab193 | DOI Listing |
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