摘要
采用北京大学三维复杂地形中尺度数值模式 ,利用Landsat-TM卫星影像图和“北京海淀区北部地区总体规划———用地规划图” ,分别模拟了北京海淀区北部规划完成后和目前情况下的气象场和大气环境 ,并分析了规划区的建成对本地和整个海淀区的影响。通过将观测的直径小于 1 0 μm的粒子即PM1 0 总量加权分配得到源强分布 ,计算海淀区的PM1 0 浓度分布 ,在目前源强分布调查很困难的情况下不失为一种较为合理可行的方法。试验表明规划区的建成会增加当地和其下风方向的热岛强度和PM1 0 浓度。对规划区进行较为合理的布局 。
Based on the three\|dimensional mesoscale numerical model of Peking University over complex terrain, Landsat\|TM image and 'the overall programming of the north district of Haidian-land use design' are used together to simulate meteorological field and atmospheric environment of present and planning finished situation in the north of Haidian district, Beijing.It has been analyzed the impact of programming project on the area to local area and the whole district. Numerical simulations show that the finishing of planning district will increase heat island intensity and concentration of PM 10 in local area and downwind.
出处
《气候与环境研究》
CSCD
2003年第2期167-179,共13页
Climatic and Environmental Research
基金
国家自然科学基金资助项目 5 9895 41 0
中国科学院知识创新工程项目KZCX 2 0 4资助
