LAMER; Long-term assessment model of radionuclides in the oceans

Nakano, Masanao 

LAMER is a calculation code which calculates the radionuclides distribution in seawater by simulating long-term advection, duffusion, and scavenging processes in worldwide scale. Then, the effective dose to the public is calculated by considering the transfer process from seawater to the human beings via marine products. The oceanic general circulation model was adopted for calculation of three-dimensional velocity field, particle tracking model for advection process, random walk model for diffusion process, and exchangable model for scavenging process. For an example, LAMER calculated the averaged effective dose to the human beings from the main radionuclides which were discharged by the atmospheric nuclear tests conducted between 1945 and 1980. In addition, the programs for output of water profile of radionuclides and the file structure of LAMER are described in the appendices.