廊坊空氣重污染的大氣環(huán)流形勢和氣象條件
發(fā)布時間:2018-04-12 20:51
本文選題:空氣重污染 + 大氣環(huán)流; 參考:《中國人口·資源與環(huán)境》2016年S1期
【摘要】:利用2013-2014年廊坊環(huán)境監(jiān)測站空氣污染資料、廊坊氣象觀測站氣象資料以及NECP/NCAR再分析資料和傾斜旋轉(zhuǎn)T模態(tài)主成分分析法,分析了廊坊空氣重污染的大氣環(huán)流形勢和氣象條件。結(jié)果表明:空氣重污染主要有5種大氣環(huán)流配置形式,其中廊坊850h Pa高空為高壓脊前,地面分別處于弱高壓場或低氣壓場中是最主要的2類,當?shù)孛鏋榈蜌鈮簣隹刂茣r,容易造成嚴重污染;空氣重污染的有利氣象條件是:地面風力≤2級,風向靜穩(wěn)以及偏西、西西南及偏東風;空氣相對濕度在50-95%之間;日降水量≤1.8mm;氣溫、氣壓接近各自平均值。
[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,
本文編號:1741383
本文鏈接:http://sikaile.net/kejilunwen/huanjinggongchenglunwen/1741383.html
最近更新
教材專著