Tropospheric Ozone at Northern Mid-Latitudes: Modeled and Measured Long-Term Changes
Tropospheric Ozone at Northern Mid-Latitudes: Modeled and Measured Long-Term Changes
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北部中纬度地区的对流层臭氧：模拟和测量的长期变化
DOI：
10.3390/atmos8090163
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
T. Peter
中科院分区：
文献类型：
--
作者：
J. Staehelin;F. Tummon;L. Revell;A. Stenke;T. Peter
在本文中，我们调查了为什么目前最先进的化学气候模型低估了对流层臭氧增加从20世纪50年代到20世纪90年代约50%。这些模型的准确性至关重要，不仅是为了了解和预测全球空气质量，而且因为它们被用来量化对流层和平流层下部的臭氧对气候变化的贡献，而对流层和平流层下部的臭氧对气候变化的贡献是温室效应最大的。我们简要介绍了可用的北方中纬度臭氧测量，其中包括代表性和可靠的数据，从欧洲的网站，延伸到20世纪50年代。我们使用SOCOLv3（Solar Climate Ozone Links version 3）全球化学气候模式来研究对流层臭氧收支的各个方面。这些因素包括：平流层的流入、干沉降以及化学形成和破坏。SOCOLv3表明，1960年至2000年，瑞士阿尔卑斯山（阿罗萨）上空850 hPa的对流层臭氧增加了17 ppb，或约30%。这一增加小于在地面臭氧测量中看到的，但类似于其他化学气候模型，包括那些比SOCOLv3更复杂的NMVOC（非甲烷挥发性有机化合物）方案。对流层臭氧的增加被低估，这可能是由于模型模拟中使用的基本排放清单存在问题，即臭氧前体排放量，特别是1960年代的氮氧化物（NO + NO2）排放量太大。
In this paper, we investigate why current state-of-the-art chemistry-climate models underestimate the tropospheric ozone increase from the 1950s to the 1990s by approximately 50%. The accuracy of these models is vital, not only for understanding and predicting air quality globally, but also since they are used to quantify the contribution of ozone in the troposphere and lower stratosphere to climate change, where its greenhouse effect is largest. We briefly describe available northern mid-latitude ozone measurements, which include representative and reliable data from European sites that extend back to the 1950s. We use the SOCOLv3 (Solar Climate Ozone Links version 3) global chemistry-climate model to investigate the individual terms of the tropospheric ozone budget. These include: inflow from the stratosphere, dry deposition, and chemical formation and destruction. For 1960 to 2000 SOCOLv3 indicates a tropospheric ozone increase at 850 hPa over the Swiss Alps (Arosa) of 17 ppb, or around 30%. This increase is smaller than that seen in the surface ozone measurements but similar to other chemistry-climate models, including those with more complex NMVOC (Non Methane Volatile Organic Compound) schemes than SOCOLv3’s. It is likely that the underestimated increase in tropospheric ozone could be explained by issues in the underlying emissions inventories used in the model simulations, with ozone precursor emissions, particularly NOx (NO + NO2), from the 1960s being too large.
影响因子：
5.1
作者：
Lamarque, J. -F.;Shindell, D. T.;Zeng, G.
通讯作者：
Zeng, G.