【摘要】 依据切尔诺贝利事故源项资料及欧洲中尺度天气预报中心提供的事故期间的气象资料,用变天气条件的烟团模式,计算了该事故放射性物质释放造成的欧洲地区若干计算点的核素地面空气浓度,预估了放射性烟云到达柏林的时间.在已知监测数据的计算点,计算结果与监测结果比较一致.证实了选用的长距离烟团模式的有效性.更多还原

【Abstract】 Based on the data of source term for Chernobyl accident and weather data during the accident period provided by European Centre for Medium Range Weather Forecasts, using puff model of changeable weather condition, the surface air concentration nuclides caused by radiation substance of the accident release in Europe area was calculated and the time of radiation plume reaching Berlin was predicted. The results show that calculated results accord with monitoring data at several calculating points of Europe area, and the validation of long-distance puff model used is evaluated.更多还原