Advancing the Understanding of the Impacts of Wave-Induced Temperature Fluctuations on Atmospheric Chemistry

增进对波浪引起的温度波动对大气化学影响的理解

• 批准号: 1906719
• 负责人: Susan Solomon
• 金额: $ 62.76万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1906719&HistoricalAwards=false
• 关键词: Advancing; Understanding; Impacts; Wave; Induced

This research links atmospheric dynamics to atmospheric chemistry through efforts to quantify the influence of atmospheric waves on the chemistry of the lower stratosphere and upper troposphere. Changes in temperature due to these waves will be modeled using the Whole Atmospheric Community Climate Model (WACCM). This work will provide new tools for use by the broad community of atmospheric modelers.This research is divided into 3 parts. Part 1: Evaluate the amplitude of gravity-wave induced temperature perturbations due to mesoscale gravity waves, using the Community Earth System Model (CESM) parameterizations for gravity waves, and applying these in the chemical scheme of WACCM, focusing on heterogeneous halogen chemistry effects on liquid atmospheric aerosols as well as polar stratospheric clouds. Part 2: Evaluate the chemical composition responses to equatorial waves at low latitudes using WACCM, focusing on the effects of heterogeneous halogen chemistry and circulation changes induced by the waves. This work will target responses in NO, NO2, N2O5, HNO3, ClONO2, HCl, ozone, and related species such as OH, examining inter-annual variations, and searching for evidence of these in satellite data. Part 3: Study the influence of gravity waves on a comprehensive range of gas-phase reactions and study the effects on atmospheric composition from the tropopause region to the stratopause. This effort will focus on the influence of wave activity on the distributions of N2O5, NO, NO2, HNO3, and other species subject to thermal decomposition including PAN.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项研究通过努力量化大气波对平流层下部和对流层上部化学的影响，将大气动力学与大气化学联系起来。 由于这些波引起的温度变化将使用全大气社区气候模型（WACCM）进行建模。这项工作将为广大的大气建模者提供新的工具。第一部分：利用共同体地球系统模式（CESM）的重力波参数化，评估中尺度重力波引起的重力波引起的温度扰动幅度，并将其应用于WACCM的化学方案中，重点关注非均质卤素化学对液态大气气溶胶以及极地平流层云的影响。 第二部分：使用WACCM评估化学成分对低纬度赤道波的响应，重点是不均匀卤素化学和波引起的环流变化的影响。这项工作将针对NO，NO2，N2O5，HNO3，ClONO2，HCl，臭氧和相关物种（如OH）的响应，检查年际变化，并在卫星数据中寻找这些变化的证据。 第三部分：研究重力波对各种气相反应的影响，并研究对从对流层顶到平流层顶的大气成分的影响。 这项工作的重点是波浪活动对N2O5、NO、NO2、HNO3和其他受热分解影响的物种（包括PAN）分布的影响。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Atmospheric Chemistry Signatures of an Equatorially Symmetric Matsuno–Gill Circulation Pattern

赤道对称松野鳃环流模式的大气化学特征

• DOI: 10.1175/jas-d-20-0025.1
• 发表时间: 2021
• 期刊: Journal of the Atmospheric Sciences
• 影响因子: 3.1
• 作者: Wilka, Catherine;Solomon, Susan;Cronin, Timothy W.;Kinnison, Doug;Garcia, Rolando
• 通讯作者: Garcia, Rolando

Stratospheric Temperature and Ozone Anomalies Associated With the 2020 Australian New Year Fires

• DOI: 10.1029/2021gl095898
• 发表时间: 2021-11
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: L. Rieger;W. Randel;A. Bourassa;S. Solomon

Effects of denitrification on the distributions of trace gas abundances in the polar regions: a comparison of WACCM with observations

• DOI: 10.5194/acp-23-6849-2023
• 发表时间: 2023-06
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: M. Weimer;D. Kinnison;C. Wilka;S. Solomon

Unexpected Repartitioning of Stratospheric Inorganic Chlorine After the 2020 Australian Wildfires

• DOI: 10.1029/2022gl098290
• 发表时间: 2022-07
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: S. Strahan;D. Smale;S. Solomon;G. Taha;M. Damon;S. Steenrod;N. Jones;B. Liley;R. Querel;John Robinson

Non‐Local Parameterization of Atmospheric Subgrid Processes With Neural Networks

使用神经网络对大气子网格过程进行非局部参数化

• DOI: 10.1029/2022ms002984
• 发表时间: 2022
• 期刊: Journal of Advances in Modeling Earth Systems
• 影响因子: 6.8
• 作者: Wang, Peidong;Yuval, Janni;O’Gorman, Paul A.
• 通讯作者: O’Gorman, Paul A.