Refined initial data are presented for retrospective prediction and analysis of the radiation conditions in Primorskii Krai after a nuclear accident on a nuclear submarine on August 10, 1985 in Bukhta Chazhma. The initial and boundary conditions are substantiated, including sources of radioactive contamination of the environment, emission intensity of the determining dose-generating radionuclides, weather conditions, and particulars of the transport of the radioactive cloud above the ship repair yard, Dunai Peninsula, Zemlya Petra Velikogo, and Primorskii Krai territory. Substantiation is given for choosing the systems PARRAD and ROUZ for reconstruction of past events to predict the transport and spreading of radioactive substances in the atmosphere, making it possible to evaluate the radiation consequences of the accident for the population of Primor’ya and the adjoining part of China, including environmental contamination, taking into account actual data, numerical estimates, and reconstructed weather conditions for the period of the accident and on the days preceding and following it.

中文翻译：

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重建 Bukhta Chazhma 核潜艇核事故造成的环境放射性污染和人口剂量负荷的条件和初始数据

1985 年 8 月 10 日在 Bukhta Chazhma 发生核潜艇核事故后，Primorskii Krai 地区的辐射条件的回顾性预测和分析提供了精确的初始数据。初始条件和边界条件得到证实，包括环境的放射性污染源、确定剂量产生放射性核素的发射强度、天气条件以及放射性云在船舶修理厂、杜奈半岛、地岛佩特拉上空运输的细节Velikogo 和滨海边疆区领土。为选择用于重建过去事件以预测放射性物质在大气中的传输和扩散的系统 PARRAD 和 ROUZ 提供了证据，