Relative and Absolute Sensitivity Analysis on Ozone Production in Tsukuba, a City in Japan
Relative and Absolute Sensitivity Analysis on Ozone Production in Tsukuba, a City in Japan
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日本筑波市臭氧产生的相对和绝对敏感性分析
DOI：
10.1021/acs.est.9b03542
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发表时间：
2019
影响因子：
11.4
通讯作者：
Kentaro Murano and Yoshizumi Kajii
中科院分区：
文献类型：
--
作者：
Yosuke Sakamoto;Yasuhiro Sadanaga;Jiaru Li;Kohei Matsuoka;Marina Takemura;Tomihide Fujii;Maho Nakagawa;Nanase Kohno;Yoshihiro Nakashima;Kei Sato;Tomoki Nakayama;Shungo Kato;Akinori Takami;Ayako Yoshino;Kentaro Murano and Yoshizumi Kajii
臭氧产生率对减少其前体物的变化，即臭氧产生敏感性，是制定减少臭氧战略的重要信息。我们扩展了传统的灵敏度分析理论，包括过氧自由基的损失，吸收到颗粒表面的目的是检查其潜在的影响。我们还提出了一个新的概念，绝对的灵敏度，使我们能够评估减少前体对减轻臭氧生产在给定的时期和地区的定量有效性。本研究将该理论应用于日本筑波市的观测。相对敏感性分析表明，上午和晚上臭氧对挥发性有机物（VOCs）的敏感性最高，下午对NO_x的敏感性最高。NO耗竭是这种敏感性转变的主要触发因素。绝对敏感性分析表明，上午的VOC敏感时段决定了一天中臭氧总产生量的敏感性。虽然粒子没有显着的影响，制度分类在筑波，他们有可能减少减少挥发性有机化合物减少臭氧产生的缓解效果，并根据吸收系数缓和NOx减少的增强效果。进一步的研究将受益于与观测约束箱模型模拟或化学输运建模系统相结合，这可能会提供大的空间和时间范围内的敏感性分析。
The change in the ozone production rate on reducing its precursors, namely, ozone production sensitivity, is important information for developing a strategy to reduce ozone. We expanded a conventional sensitivity analysis theory by including peroxy radical loss by uptake onto particle surfaces in the aim of examining their potential impact. We also propose a new concept of absolute sensitivity that enables us to evaluate the quantitative effectiveness of precursor reduction toward mitigating ozone production over a given period and area. This study applies the theory to observations in Tsukuba, a city in Japan. The relative sensitivity analysis shows that ozone production was more sensitive to volatile organic compounds (VOCs) in the morning and evening, and it became more sensitive to NOxin the afternoon. NO depletion was a main trigger in this sensitivity regime transition. The absolute sensitivity analysis indicates that the VOC-sensitive period in the morning determines the total ozone production sensitivity in a day. While particles did not have significant impact on regime classification in Tsukuba, they have a potential to decrease the mitigating effect of VOC reduction on ozone production and to moderate the enhancement effect of NOxreduction depending upon uptake coefficients. A further study will benefit from a combination with an observation-constrained box model simulation or chemical transport modeling system, which may provide sensitivity analysis over a large spatial and temporal range.