Effects of intercontinental transport on surface ozone over the United States: Present and future assessment with a global model
Effects of intercontinental transport on surface ozone over the United States: Present and future assessment with a global model
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DOI：
10.1029/2007gl031415
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发表时间：
2008-01
影响因子：
5.2
通讯作者：
Jintai Lin;D. Wuebbles;Xin‐Zhong Liang
中科院分区：
文献类型：
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作者：
Jintai Lin;D. Wuebbles;Xin‐Zhong Liang
欧洲和亚洲（EURA）污染物洲际运输（ICT）的未来变化可能对美国的污染产生重大影响。这是调查与27模拟使用新改进版本的模型OZone和相关的化学示踪剂模拟ICT的贡献夏季美国地面臭氧为1999年，2049年和2099年，未来的气候和排放扰动政府间气候变化专门委员会A1 FI和B1情景。我们发现，预计的ICT变化主要受欧洲人为排放变化的影响，在A1 fi下，其增加导致3-8 ppb，仅由于亚洲排放增加导致2-6 ppb，从1999年到2049年和2099年，美国西部的臭氧量增加;而根据B1，欧盟排放量的变化导致到2049年和2099年臭氧分别减少0-0.7 ppb和1-2 ppb。因此，全球，特别是亚洲的排放控制对美国的污染缓解至关重要。
Future changes in intercontinental transport (ICT) of European and Asian (EURA) pollutants can have substantial consequences on U.S. pollution. This is investigated with 27 simulations using a newly improved version of the Model for OZone And Related chemical Tracers to simulate ICT contributions to summertime U.S. surface ozone for 1999, 2049 and 2099, with future climate and emissions perturbations following the Intergovernmental Panel on Climate Change A1fi and B1 scenarios. We find that projected ICT changes are primarily affected by changes in EURA anthropogenic emissions, whose increases under A1fi lead to 3–8 ppb, 2–6 ppb due to Asian emissions increases alone, more ozone from 1999 to both 2049 and 2099 over the western U.S.; whereas EURA emissions changes under B1 lead to 0–0.7 ppb and 1–2 ppb less ozone by 2049 and 2099, respectively. Therefore global, especially Asian, emission control is important for U.S. pollution mitigation.