调兵山地区污染气象特征研究

利用2003—2005年法库县气象站的地面常规气象资料和2006年12月在调兵山地区进行的低空污染气象探测资料,分析了调兵山地区低空污染气象特征。结果表明:该地区各类型风廓线出现频率比较均匀,而且由于下垫面相对平坦,因此风廓线指数与国标推荐值类似;文中定义N,NE,NNE和ENE四个方位的风向为对调兵山市区大气污染的不利风向,而其他方位为有利风向,按地面风统计本区不利风向的频率为20.88%,有利风向的频率为79.12%。

Study on the characteristics of pollution meteorology in Diaobingshan area

Based on the general surface meteorological data from 2003 to 2005 in Faku observation station and low-level sounding data of pollution meteorology in November 2006 in Diaobiangshan area,the characteristics of low-level pollutant meteorology were analyzed.The results showed that the frequencies of all kinds of wind profiles were almost equal in this area,and the values of these wind profiles indices were similar to the values of international standard recommended because of the flat underlying surface.Four wind directions(N,NE,NNE and ENE) were defined as advantageous directions,whereas other wind directions were disadvantageous directions.The statistical results showed that the frequencies of disadvantageous directions and advantageous directions were about 20.88% and 79.12%,respectively.