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Author:

Wei, Peng (Wei, Peng.) | Cheng, Shuiyuan (Cheng, Shuiyuan.) (Scholars:程水源) | Li, Jianbing (Li, Jianbing.) | Su, Fuqing (Su, Fuqing.)

Indexed by:

EI Scopus SCIE

Abstract:

Based on a Lagrangian particle dispersion model FLEXPART 3-D in conjunction with a Weather Research and Forecasting (WRF) model, this study analyzed the synoptic patterns of the three sections (i.e. front, center, and rear) of a slow-moving anticyclonic weather system that took place during April 22-30, 2002 in northern China. The impacts of anticyclone on regional air quality were also revealed through simulating the transport trajectories of PM10 particles in the anticyclone. The findings indicate that PM10 pollutant transport process within the anticyclone showed the following characteristics: (a) the frontal pressure field played a strong role in removing pollutants from a high concentration zone located before the front, (b) the central part of anticyclone with an evident isobaric pressure field tended to create a pollutant accumulation process, and (c) the rear of the anticyclone system with a southerly warmer advection in the pressure gradient zone formed a stable channel for transporting pollutants. By using air pressure data and PM10 concentration measurements, the quantitative relationship between pressure variability and PK variation in different sections of the anticyclone was established. A linear relationship was assumed between PM10 variation per unit area in the mixing layer and pressure variation within a time interval, and different sections of the anticyclone were associated with different linear regression equations. A parameter called PM10 variation rate was then put forward, which could be easily applied for regional air pollution control and management. (C) 2011 Elsevier Ltd. All rights reserved.

Keyword:

Air pollution FLEXPART model Anticyclone PM10 WRF model

Author Community:

  • [ 1 ] [Li, Jianbing]Univ No British Columbia, Environm Engn Program, Prince George, BC V2N 4Z9, Canada
  • [ 2 ] [Wei, Peng]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 3 ] [Cheng, Shuiyuan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 4 ] [Su, Fuqing]Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China

Reprint Author's Address:

  • [Li, Jianbing]Univ No British Columbia, Environm Engn Program, Prince George, BC V2N 4Z9, Canada

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Source :

ATMOSPHERIC ENVIRONMENT

ISSN: 1352-2310

Year: 2011

Issue: 14

Volume: 45

Page: 2453-2463

5 . 0 0 0

JCR@2022

ESI Discipline: GEOSCIENCES;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 37

SCOPUS Cited Count: 53

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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