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文章摘要
银川市臭氧污染特征及其气象条件诊断分析
Ozone Pollution Characteristic and Its Meteorological Condition Diagnosis in Yinchuan
  
DOI:
中文关键词: 臭氧  污染特征  气象条件  预警指标  环流特征  银川市
英文关键词: Ozone  Pollution characteristic  〖HK〗Meteorological condition  Early warning index  Circulation characteristic  Yinchuan
基金项目:宁夏回族自治区重点研发计划基金资助项目(2018BEG03067,2019BFG02025);中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室基金资助项目(CAMP-201909)
作者单位
王建英 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室宁夏气象防灾减灾重点实验室宁夏气象服务中心 
崔洋 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室宁夏气象防灾减灾重点实验室 
杨亚丽 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室宁夏气象防灾减灾重点实验室宁夏气象服务中心 
史霖 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室宁夏气象防灾减灾重点实验室宁夏气象服务中心 
缑晓辉 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室宁夏气象防灾减灾重点实验室宁夏气象服务中心 
龚晓丽 固原市气象局 
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中文摘要:
      利用2017年银川市区O3监测数据和同期气象资料,分析O3污染时间变化特征,在对高浓度O3污染发生时段典型气象特征诊断分析的基础上,初步总结银川市O3污染气象要素预警指标和典型环流特征。结果表明:银川市近地面O3浓度春夏季高、秋冬季低,其月浓度峰值一般出现在夏季6月或7月;O3浓度白天高、夜间低,日O3浓度峰值一般出现在14:00—18:00之间;当14:00地面紫外辐射>30 W/m2、气温高于28 ℃、相对湿度低于40%、风向为偏东或偏南风时发生高浓度O3污染的概率较高;500 hPa大陆高压脊前西北气流型和地面热低压底部东南气流型是银川市发生O3污染的典型环流特征。
英文摘要:
      According to O3monitoring data and meteorological data in 2017 in Yinchuan, the time varying characteristics of O3 pollution were studied. Based on the diagnosis of typical meteorological characteristics during high O3 pollution, the early warning indexes of meteorological factors and typical circulation characteristics of O3 pollution in Yinchuan were preliminarily summarized. The results showed that near surface O3 concentration in Yinchuan was high in spring and summer, low in autumn or winter. The peak value of O3 monthly concentration occurred in June or July. O3 concentration was high in daytime and low in nighttime. The peak value of O3 daily concentration occurred between 14:00 and 18:00. At 14:00 when surface ultraviolet radiation was greater than 〖GK0!23*3/4〗〖JP〗30 W/m2 , air temperature was higher than 28 ℃, relative humidity was lower than 40% and wind direction was easterly or southerly, high concentration of O3 〖JP〗appeared probably. Northwest airflow pattern of before 500 hPa continental high pressure ridge and southeast airflow pattern of surface thermal depression bottom were typical circulation characteristics of O3 pollution in Yinchuan.
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