廊坊空气重污染的大气环流形势和气象条件

发布时间：2018-04-12 20:51

  本文选题：空气重污染 + 大气环流　； 参考：《中国人口·资源与环境》2016年S1期

【摘要】：利用2013-2014年廊坊环境监测站空气污染资料、廊坊气象观测站气象资料以及NECP/NCAR再分析资料和倾斜旋转T模态主成分分析法,分析了廊坊空气重污染的大气环流形势和气象条件。结果表明:空气重污染主要有5种大气环流配置形式,其中廊坊850h Pa高空为高压脊前,地面分别处于弱高压场或低气压场中是最主要的2类,当地面为低气压场控制时,容易造成严重污染;空气重污染的有利气象条件是:地面风力≤2级,风向静稳以及偏西、西西南及偏东风;空气相对湿度在50-95%之间;日降水量≤1.8mm;气温、气压接近各自平均值。
[Abstract]:Based on air pollution data of Langfang environmental monitoring station, meteorological data of Langfang meteorological observation station, NECP/NCAR reanalysis data and principal component analysis of tilted rotating T mode, the atmospheric circulation situation and meteorological conditions of air heavy pollution in Langfang from 2013 to 2014 are analyzed.The results show that there are mainly five types of atmospheric circulation in heavy air pollution, in which Langfang 850hPa is the front of high pressure ridge, and the surface is mainly in weak high pressure field or low pressure field, when the surface is controlled by low pressure field,It is easy to cause serious pollution; the favorable meteorological conditions for heavy air pollution are: surface wind force 鈮，

本文编号：1741383