<br>综合高氮氧化物到低氮氧化物大气中氮氧化物外部循环的证据,Nature Communications

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综合高氮氧化物到低氮氧化物大气中氮氧化物外部循环的证据
Nature Communications ( IF 14.7 ) Pub Date : 2023-12-02 , DOI: 10.1038/s41467-023-43866-z
Chunxiang Ye ₁ , Xianliang Zhou _{2,

3} , Yingjie Zhang _{1,

4} , Youfeng Wang ₁ , Jianshu Wang ₁ , Chong Zhang ₁ , Robert Woodward-Massey _{1,

5} , Christopher Cantrell ₆ , Roy L Mauldin _{7,

8,

9} , Teresa Campos ₁₀ , Rebecca S Hornbrook ₁₀ , John Ortega ₁₀ , Eric C Apel ₁₀ , Julie Haggerty ₁₀ , Samuel Hall ₁₀ , Kirk Ullmann ₁₀ , Andrew Weinheimer ₁₀ , Jochen Stutz ₁₁ , Thomas Karl ₁₂ , James N Smith ₁₃ , Alex Guenther ₁₃ , Shaojie Song ₁₄

Affiliation

State Key Joint Laboratory of Environmental Simulation and Pollution Control (SKL-ESPC), College of Environmental Sciences and Engineering, Peking University, Beijing, China.
Wadsworth Center, New York State Department of Health, Albany, NY, USA.
Department of Environmental Health Sciences, State University of New York, Albany, NY, USA.
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China.
Department of Chemistry, University of Leeds, Leeds, UK.
Université Paris-est Créteil, LISA (Laboratoire Interuniversitaire des Systèmes Atmosphériques), Paris, France.
Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA.
Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA.
Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USA.
National Center for Atmospheric Research, Boulder, CO, USA.
Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA.
Institute for Meteorology and Geophysics, University of Innsbruck, Innsbruck, Austria.
Earth System Science, University of California, Irvine, CA, USA.
State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control & Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, China.

提出从其氧化库NO _z中进行外部循环再生氮氧化物（NO _x == NO + NO ₂ ）来重塑NO _x的时空分布，从而重塑大气中最重要的氧化剂羟基自由基（OH）。在这里，我们基于白天在飞机平台上收集的综合现场证据，验证了以亚硝酸（HONO）为中间体的各种环境中NO _x的原位外部循环。外部循环有助于调和当前化学模型方案对观察到的 HONO/NO ₂和 NO ₂ /NO _z比率的顽固低估，并合理化 HONO 和 NO ₂的非典型昼夜浓度分布，缺乏在低 NO _x大气中特别观察到的中午谷值。还发现外部循环对 HONO 和 NO _x预算的扰动随着 NO _x浓度的降低而增加。因此，在低 NO _x大气中，模型对 OH 观测值的低估高达 41%，这归因于模型中省略了外部循环。

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更新日期：2023-12-05

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