Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling

IF 25.2 1区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Reviews of Geophysics Pub Date : 2020-02-03 DOI:10.1029/2019RG000670
Olivia E. Clifton, Arlene M. Fiore, William J. Massman, Colleen B. Baublitz, Mhairi Coyle, Lisa Emberson, Silvano Fares, Delphine K. Farmer, Pierre Gentine, Giacomo Gerosa, Alex B. Guenther, Detlev Helmig, Danica L. Lombardozzi, J. William Munger, Edward G. Patton, Sally E. Pusede, Donna B. Schwede, Sam J. Silva, Matthias S?rgel, Allison L. Steiner, Amos P. K. Tai
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引用次数: 80

Abstract

Dry deposition of ozone is an important sink of ozone in near‐surface air. When dry deposition occurs through plant stomata, ozone can injure the plant, altering water and carbon cycling and reducing crop yields. Quantifying both stomatal and nonstomatal uptake accurately is relevant for understanding ozone's impact on human health as an air pollutant and on climate as a potent short‐lived greenhouse gas and primary control on the removal of several reactive greenhouse gases and air pollutants. Robust ozone dry deposition estimates require knowledge of the relative importance of individual deposition pathways, but spatiotemporal variability in nonstomatal deposition is poorly understood. Here we integrate understanding of ozone deposition processes by synthesizing research from fields such as atmospheric chemistry, ecology, and meteorology. We critically review methods for measurements and modeling, highlighting the empiricism that underpins modeling and thus the interpretation of observations. Our unprecedented synthesis of knowledge on deposition pathways, particularly soil and leaf cuticles, reveals process understanding not yet included in widely used models. If coordinated with short‐term field intensives, laboratory studies, and mechanistic modeling, measurements from a few long‐term sites would bridge the molecular to ecosystem scales necessary to establish the relative importance of individual deposition pathways and the extent to which they vary in space and time. Our recommended approaches seek to close knowledge gaps that currently limit quantifying the impact of ozone dry deposition on air quality, ecosystems, and climate.
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陆地上臭氧的干沉积:过程、测量和模拟
臭氧干沉降是近地面空气中臭氧的重要汇。当干沉降通过植物气孔发生时,臭氧会伤害植物,改变水和碳循环,降低作物产量。准确量化气孔和非气孔吸收对于理解臭氧作为一种空气污染物对人类健康的影响以及作为一种强有力的短期温室气体对气候的影响以及对几种活性温室气体和空气污染物去除的主要控制具有重要意义。可靠的臭氧干沉积估计需要了解单个沉积途径的相对重要性,但对非气孔沉积的时空变异性了解甚少。在这里,我们通过综合大气化学、生态学和气象学等领域的研究,整合对臭氧沉积过程的理解。我们批判性地回顾了测量和建模方法,强调了支持建模的经验主义,从而解释了观察结果。我们对沉积途径,特别是土壤和叶片角质层的前所未有的综合知识,揭示了尚未包括在广泛使用的模型中的过程理解。如果与短期野外强度、实验室研究和机械建模相协调,从几个长期地点进行的测量将架起从分子尺度到生态系统尺度的桥梁,从而确定单个沉积途径的相对重要性及其在空间和时间上的变化程度。我们推荐的方法旨在缩小目前限制臭氧干沉降对空气质量、生态系统和气候影响量化的知识差距。
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来源期刊
Reviews of Geophysics
Reviews of Geophysics 地学-地球化学与地球物理
CiteScore
50.30
自引率
0.80%
发文量
28
审稿时长
12 months
期刊介绍: Geophysics Reviews (ROG) offers comprehensive overviews and syntheses of current research across various domains of the Earth and space sciences. Our goal is to present accessible and engaging reviews that cater to the diverse AGU community. While authorship is typically by invitation, we warmly encourage readers and potential authors to share their suggestions with our editors.
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