Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD028684 |
Transport of Central American Fire Emissions to the U .S. Gulf Coast: Climatological Pathways and Impacts on Ozone and PM2.5 | |
Wang, Sing-Chun1,2; Wang, Yuxuan1,2; Estes, Mark3; Lei, Ruixue1,2; Talbot, Robert1,2; Zhu, Liye4,5; Hou, Pei6,7 | |
2018-08-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:15页码:8344-8361 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Fire emissions from Mexico and Central America are transported regularly to the U.S. Gulf Coast every spring under prevailing circulation patterns and affect U.S. air quality. Here we use a GEOS-Chem passive tracer simulation to develop the climatology of transport pathways of fire emissions over a long-term time period of April and May 2002-2015 and estimate their adverse air quality effects for urban areas along the Gulf Coast. A conceptual model is presented to describe the transport mechanisms, which involve southerly low-level jets in the lower troposphere and warm conveyor belt in the middle troposphere. The warm conveyor belts and the southerly low-level jets explain 31% and 69% of the interannual variability of the mid-altitude (1.5-6 km) and low-altitude events (0-1.5 km), respectively. Considering both transport and fire emissions, approximately 9% of the study period (59-88 days of 854 days) were identified as large pollution events during which Central American fire emissions adversely impacted surface air quality at several major urban centers along the Gulf Coast, including Houston and Corpus Christi in TX, New Orleans in LA, Mobile in AL, and Pensacola in FL. Compared to clean maritime flow from the Gulf of Mexico, these events were estimated to result in average enhancements of maximum daily average 8-hr (MDA8) ozone and daily PM2.5 (fine particulate matter <2.5 mu m in diameter) in the Gulf Coast cities of 3-12 ppbv and 2-5 mu g/m(3), respectively. Only one ozone exceedance day (79 ppbv, on 18 May 2003) was found among the fire-impact days for the Houston region. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443578500004 |
WOS关键词 | LOW-LEVEL JETS ; GREAT-PLAINS SITE ; UNITED-STATES ; NORTH-AMERICA ; BOUNDARY-LAYER ; BACKGROUND OZONE ; INTERANNUAL VARIABILITY ; MIDLATITUDE CYCLONES ; GLOBAL-MODEL ; TRACE GASES |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/33597 |
专题 | 气候变化 |
作者单位 | 1.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77004 USA; 2.Univ Houston, Inst Climate & Atmospher Sci, Houston, TX 77004 USA; 3.Texas Commiss Environm Qual, Austin, TX USA; 4.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China; 5.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 6.Michigan Technol Univ, Atmospher Sci Program, Houghton, MI 49931 USA; 7.Michigan Technol Univ, Dept Geol & Min Engn & Sci, Houghton, MI 49931 USA |
推荐引用方式 GB/T 7714 | Wang, Sing-Chun,Wang, Yuxuan,Estes, Mark,et al. Transport of Central American Fire Emissions to the U .S. Gulf Coast: Climatological Pathways and Impacts on Ozone and PM2.5[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(15):8344-8361. |
APA | Wang, Sing-Chun.,Wang, Yuxuan.,Estes, Mark.,Lei, Ruixue.,Talbot, Robert.,...&Hou, Pei.(2018).Transport of Central American Fire Emissions to the U .S. Gulf Coast: Climatological Pathways and Impacts on Ozone and PM2.5.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(15),8344-8361. |
MLA | Wang, Sing-Chun,et al."Transport of Central American Fire Emissions to the U .S. Gulf Coast: Climatological Pathways and Impacts on Ozone and PM2.5".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.15(2018):8344-8361. |
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