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利用欧拉型硫沉降模式分析3个个例,讨论了东亚地区不同天气条件下硫总沉降、干沉降和湿沉降。不同天气条件下硫沉降的分布不同。干沉降与污染源的分布有很好的相关性,而总沉降的分布除决定于排放量外,还明显受到降水场分布的影响。24h硫沉降量一般为1.0~10.0mg/m2,最大可达32mg/m2,干沉降量的值为1.0~5.0mg/m2,最大值为14.8mg/m2,湿沉降量的值为0.5~7.0mg/m2,强降水区附近可达22mg/m2。
Using Eulerian sulfur deposition model to analyze three cases, the authors discussed the total sulfur deposition, dry deposition and wet deposition under different weather conditions in East Asia. The distribution of sulfur deposition is different under different weather conditions. There is a good correlation between the dry deposition and the distribution of pollution sources, and the distribution of the total sedimentation is obviously influenced by the distribution of the precipitation field in addition to the emission. Sedimentation amount of 24h sulfur is generally 1.0 ~ 10.0mg / m2, maximum up to 32mg / m2, dry sedimentation value of 1.0 ~ 5.0mg / m2, the maximum value of 14.8mg / m2, wet deposition The value of the amount of 0.5 ~ 7.0mg / m2, strong precipitation area up to 22mg / m2.