Improvement of Worldwide Version of System for Prediction of Environmental Emergency Dose Information (WSPEEDI), (II)
Improvement of Worldwide Version of System for Prediction of Environmental Emergency Dose Information (WSPEEDI), (II)
复制标题
环境紧急剂量信息预测系统（WSPEEDI）全球版本的改进，（二）
DOI：
10.1080/18811248.2004.9726433
复制
发表时间：
2005
影响因子：
1.2
通讯作者：
M. Chino
中科院分区：
文献类型：
--
作者：
H. Terada;M. Chino
通过对切尔诺贝利核事故期间欧洲上空137 Cs的降水和地表沉降观测，评价了由大气动力学模式MM 5和拉格朗日粒子扩散模式GEARN-new组成的WSPEEDI（Worldwide version of System for Prediction of Environmental Emergency Dose Information）的预报性能。结果表明，当采用云微物理显式方案和冰相过程进行精确降水预报时，MM 5/GEARN-new能较好地预报137 Cs的沉降分布。采用嵌套方法对切尔诺贝利周围地区进行了高分辨率计算。MM 5/GEARN-new能较真实地预测切尔诺贝利核电站周围137 Cs沉降的分布，而以前的版本不能计算。
The prediction performance of WSPEEDI (Worldwide version of System for Prediction of Environmental Emergency Dose Information), which consists of the atmospheric dynamic model MM5 and the Lagrangian particle dispersion model GEARN-new, is evaluated by measurements of precipitation and surface deposition of 137Cs over Europe during the Chernobyl accident. It is concluded that MM5/GEARN-new can predict 137Cs deposition distribution with good accuracy when accurate precipitation is predicted by using an explicit scheme on cloud microphysics with ice phase processes. High-resolution calculation is also conducted for the area surrounding Chernobyl by a nesting method. MM5/GEARN-new can quite realistically predict the distribution of 137Cs deposition around Chernobyl which cannot be calculated by the previous version.