Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-867-2017 |
The dynamical impact of Rossby wave breaking upon UK PM10 concentration | |
Webber, Christopher P.; Dacre, Helen F.; Collins, William J.; Masato, Giacomo | |
2017-01-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Coarse particulate matter (PM10) has long been understood to be hazardous to human health, with mortality rates increasing as a result of raised ground level concentrations. We explore the influence of synoptic-scale meteorology on daily mean observed PM10 concentration ([PM10]) using Rossby wave breaking (RWB). Meteorological reanalysis data for the winter months (DJF) between January 1999 and December 2008 and observed PM10 data for three urban background UK (Midland) sites were analysed. Three RWB diagnostics were used to identify RWB that had significant influence on UK Midland PM10. RWB events were classified according to whether the RWB was cyclonic or anticyclonic in its direction of breaking and whether the RWB event was influenced more by poleward or equatorial air masses. We find that there is a strong link between RWB events and UK [PM10]. Significant increases (p < 0.01) in UK [PM10] were seen 1 day following RWB occurring in spatially constrained northeast Atlantic-European regions. Analysis into episodic PM10 exceedance events shows increased probability of [PM10] exceedance associated with all RWB subsets. The greatest probability of exceeding the UK [PM10] threshold was associated with cyclonic RWB preceded by anticyclonic RWB forming an Omega block synoptic pattern. This mechanism suggests an easterly advection of European PM10 followed by prolonged stagnant conditions within the UK and led to an almost threefold increase in the probability of the UK Midlands exceeding a hazardous [PM10] threshold (0.383), when compared to days where no RWB was detected (0.129). |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394594500001 |
WOS关键词 | AIR-POLLUTION ; PARTICULATE MATTER ; BLOCKING ; HEMISPHERE ; TROPOPAUSE ; PARTICLES ; SECONDARY ; PROJECT |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30578 |
专题 | 地球科学 |
作者单位 | Univ Reading, Dept Meteorol, Reading RG6 6AX, Berks, England |
推荐引用方式 GB/T 7714 | Webber, Christopher P.,Dacre, Helen F.,Collins, William J.,et al. The dynamical impact of Rossby wave breaking upon UK PM10 concentration[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(2). |
APA | Webber, Christopher P.,Dacre, Helen F.,Collins, William J.,&Masato, Giacomo.(2017).The dynamical impact of Rossby wave breaking upon UK PM10 concentration.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(2). |
MLA | Webber, Christopher P.,et al."The dynamical impact of Rossby wave breaking upon UK PM10 concentration".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.2(2017). |
条目包含的文件 | 条目无相关文件。 |
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