Collaborative Research: Understanding the chemical and physical variability of smoke using plume spatial gradients: analysis and parameterization for air quality and climate models

合作研究：利用羽流空间梯度了解烟雾的化学和物理变化：空气质量和气候模型的分析和参数化

• 批准号: 1950327
• 负责人: Jeffrey Pierce
• 金额: $ 47万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-03-01 至 2024-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1950327&HistoricalAwards=false
• 关键词: Collaborative; Research; Understanding; chemical; physical

This project includes an evaluation of observational data from three recent atmospheric chemistry field campaigns to measure pollutants in the plumes of wildfires. The observational data will used to develop and assess a new parameterization for modeling the variability in the pollutant aging processes across wildfire plumes. The new parameterization is expected to improve the predictive capability of air quality and climate models.Recent observations suggest that gradients across a smoke plume include differences in photochemistry, aerosol composition, and aerosol size, likely driven by differences in dilution and UV radiation in different parts of the plume. By studying the differences between the plume edge/core and top/bottom, the investigators expect to provide a better understanding of the variability in aging between different plumes. The System for Atmospheric Modelling (SAM) - Aerosol Simulation Program (ASP) model, developed by Pierce and Alvarado with prior support from NSF, will be used to advance the understanding of pollution- and climate-relevant smoke aging processes. The data that will be used for this project includes: (1) the NSF-funded Western wildfire Experiment for Cloud chemistry, Aerosol absorption, and Nitrogen (WE-CAN) campaign held in July-September 2018; (2) the DOE-supported Biomass Burning Observation Project (BBOP) conducted during June-October 2013; and (3) the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) campaign, a joint NASA/NOAA venture, that occurred in the summer of 2019.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.

该项目包括对最近三次大气化学实地活动的观测数据进行评价，以测量野火羽流中的污染物。观测数据将用于开发和评估一个新的参数化模型的变化，在整个野火羽流的污染物老化过程。新的参数化预计将提高空气质量和气候模式的预测能力。最近的观测表明，烟羽的梯度包括光化学、气溶胶成分和气溶胶大小的差异，这可能是由烟羽不同部分的稀释和紫外线辐射差异造成的。通过研究羽流边缘/核心和顶部/底部之间的差异，研究人员希望更好地了解不同羽流之间老化的变化。由Pierce和阿尔瓦拉多在NSF的支持下开发的大气模拟系统（SAM）-气溶胶模拟程序（ASP）模型将用于促进对污染和气候相关烟雾老化过程的理解。将用于该项目的数据包括：（1）2018年7月至9月举行的NSF资助的云化学，气溶胶吸收和氮（WE-CAN）西部野火实验活动;（2）2013年6月至10月期间进行的DOE支持的生物质燃烧观测项目（BBOP）;火灾对区域乃至全球环境和空气质量的影响（FIREX-AQ）运动，美国宇航局/美国国家海洋和大气管理局的联合项目，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进行评估，被认为值得支持的搜索.

项目成果

Observation of Vapor Wall Deposition in a Smog Chamber Using Size Evolution of Pure Organic Particles

利用纯有机颗粒的尺寸演变观察烟雾室中的蒸气壁沉积

• DOI: 10.4209/aaqr.2020.05.0268
• 发表时间: 2020
• 期刊: Aerosol and Air Quality Research
• 影响因子: 4
• 作者: Pratap, Vikram;Kiran, S. Aditya;Bian, Qijing;Pierce, Jeffrey R.;Hopke, Philip K.;Nakao, Shunsuke
• 通讯作者: Nakao, Shunsuke

Hazardous Air Pollutants in Fresh and Aged Western US Wildfire Smoke and Implications for Long-Term Exposure

• DOI: 10.1021/acs.est.0c04497
• 发表时间: 2020-10-06
• 期刊: ENVIRONMENTAL SCIENCE & TECHNOLOGY
• 影响因子: 11.4
• 作者: O'Dell, Katelyn;Hornbrook, Rebecca S.;Fischer, Emily V.
• 通讯作者: Fischer, Emily V.

Oxygenated Aromatic Compounds are Important Precursors of Secondary Organic Aerosol in Biomass-Burning Emissions

• DOI: 10.1021/acs.est.0c01345
• 发表时间: 2020-07-21
• 期刊: ENVIRONMENTAL SCIENCE & TECHNOLOGY
• 影响因子: 11.4
• 作者: Akherati, Ali;He, Yicong;Jathar, Shantanu H.
• 通讯作者: Jathar, Shantanu H.

Dilution and Photooxidation Driven Processes Explain the Evolution of Organic Aerosol in Wildfire Plumes

稀释和光氧化驱动的过程解释了野火羽流中有机气溶胶的演变

• DOI: 10.1039/d1ea00082a
• 发表时间: 2022
• 期刊: Environmental Science: Atmospheres
• 作者: Akherati, Ali;He, Yicong;Garofalo, Lauren A;Hodshire, Anna L;Farmer, Delphine;Kreidenweis, Sonia M;Permar, Wade;Hu, Lu;Fischer, Emily V;Jen, Coty N
• 通讯作者: Jen, Coty N

Empirical Insights Into the Fate of Ammonia in Western U.S. Wildfire Smoke Plumes

• DOI: 10.1029/2020jd033730
• 发表时间: 2021-06
• 期刊: Journal of Geophysical Research: Atmospheres
• 作者: J. Lindaas;Ilana B. Pollack;Julieta Juncosa Calahorrano;K. O’Dell;L. Garofalo;M. Pothier;D. Farmer;S. Kreidenweis;T. Campos;F. Flocke;A. Weinheimer;D. Montzka;G. Tyndall;E. Apel;A. Hills;R. Hornbrook;B. Palm;Q. Peng;J. Thornton;W. Permar;C. Wielgasz;Lu Hu;J. Pierce;J. Collett;A. Sullivan;E. Fischer