主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2023, Vol. 39 ›› Issue (4): 114-121.doi: 10.3969/j.issn.1673-503X.2023.04.014

• 论文 • 上一篇    下一篇

2015—2018年京津冀地区不同天气类型影响的PM2.5输送特征及减排效果分析

胡艳楠1(),孟凯2,3,*(),杨雨灵4,马翠平4,李文星1,马志淳4   

  1. 1. 中国气象局气象干部培训学院河北分院, 河北保定 071000
    2. 河北省气象科学研究所, 河北石家庄 050021
    3. 河北省气象与生态环境重点实验室, 河北石家庄 050021
    4. 河北省气象灾害防御和环境气象中心, 河北石家庄 050021
  • 收稿日期:2022-05-22 出版日期:2023-08-28 发布日期:2023-09-23
  • 通讯作者: 孟凯 E-mail:357948341@qq.com;macka@foxmail.com
  • 作者简介:胡艳楠, 女, 1989年生, 工程师, 主要从事大气物理与大气环境研究, E-mail: 357948341@qq.com
  • 基金资助:
    河北省自然科学基金面上项目(D2020304038);河北省气象局科研项目(20ky29);中国气象局气象干部培训学院科研项目(青2021-010)

Analysis of PM2.5 transport characteristics and emission reduction effects of different weather types in the Beijing-Tianjin-Hebei region from 2015 to 2018

Yannan HU1(),Kai MENG2,3,*(),Yuling YANG4,Cuiping MA4,Wenxing LI1,Zhichun MA4   

  1. 1. Hebei Branch of Training Institute for Meteorological Cadres of China Meteorological Administration, Baoding 071000, China
    2. Hebei Provincial Institute of Meteorological Sciences, Shijiazhuang 050021, China
    3. Key Laboratory of Meteorology and Ecological Environment of Hebei Province, Shijiazhuang 050021, China
    4. Hebei Provincial Meteorological Disaster Prevention and Environmental Meteorological Center, Shijiazhuang 050021, China
  • Received:2022-05-22 Online:2023-08-28 Published:2023-09-23
  • Contact: Kai MENG E-mail:357948341@qq.com;macka@foxmail.com

摘要:

将2015—2018年京津冀地区PM2.5污染日按天气类型分为均压型、高压后部型和西北高压型,应用WRF-CAMx、WRF-CMAQ模式进行北京市、石家庄市PM2.5来源解析和减排模拟。结果表明:相比均压型和西北高压型,北京市、石家庄市PM2.5污染日的高压后部型出现次数最少,但外源污染输送较明显。3种天气类型PM2.5污染日,石家庄本地污染源的排放贡献均高于北京本地污染源的排放贡献,是PM2.5浓度石家庄市高于北京市的主要原因之一。受不同天气类型影响,北京市、石家庄市PM2.5污染物输送和来源特征不同。根据石家庄市PM2.5污染物输送特征制定的减排优化方案,减排率可达京津冀中南部城市联合减排的83.6%~91.3%,该方案较为合理且高效。

关键词: WRF模式, 区域输送, 减排方案

Abstract:

According to the weather type, PM2.5 pollution days in the Beijing-Tianjin-Hebei region from 2015 to 2018 were divided into uniform pressure type, rear part of a high pressure type and northwest high-pressure type.WRF-CAMx and WRF-CMAQ models were used to analyze PM2.5 sources and simulate emission reduction in Beijing and Shijiazhuang.The results show that compared with the pressure equalization type and the northwest high-pressure type, PM2.5 pollution under the rear part of a high pressure type appears least in Beijing and Shijiazhuang, but the transport of external pollution is more obvious there.On PM2.5 pollution days under three weather types, the emission contribution of local pollution sources in Shijiazhuang is higher than that in Beijing, which is one of the main reasons why the PM2.5 concentration in Shijiazhuang is higher than that in Beijing.Affected by different weather types, the transport and source characteristics of PM2.5 pollutants are different in Beijing and Shijiazhuang.According to the transport characteristics of PM2.5 pollutants in Shijiazhuang, the emission reduction optimization scheme can reach 83.6%~91.3% of the joint emission reduction of the central and southern cities of Beijing-Tianjin-Hebei region, which is reasonable and efficient.

Key words: WRF mode, Regional transportation, Emission reduction scheme

中图分类号: