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NSF Center for Aerosol Impacts on Chemistry of the Environment

NSF 气溶胶对环境化学影响中心

基本信息

批准号：
1801971
负责人：
Kimberly Prather
金额：
$ 2000万
依托单位：
University of California-San Diego
依托单位国家：
美国
项目类别：
Cooperative Agreement
财政年份：
2018
资助国家：
美国
起止时间：
2018-10-01 至 2024-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1801971&HistoricalAwards=false
关键词：
NSF Center Aerosol Impacts Chemistry

项目摘要

With the support from the Centers for Chemical Innovation (CCI) Program in the Division of Chemistry, the NSF Center for Aerosol Impacts on Chemistry of the Environment (CAICE) at the University of California, San Diego, is partnering with 10 other institutions and conducts highly collaborative research in the field of atmospheric aerosol chemistry, with a focus on understanding the role of chemistry in sea spray aerosols. Aerosol particles in marine environments play a critical role in controlling cloud formation and lifetime, atmospheric chemical composition, surface temperature and precipitation patterns, and human and ecosystem health. CAICE research is providing new insights into aerosol chemistry which will enable more robust predictions on the impact of aerosol particles on air quality, climate, and the hydrologic cycle. In addition to illustrating the central role of chemistry in environmental processes that impacts research disciplines spanning from physical oceanography to marine biology, CAICE is actively developing new experimental and computational tools with applications in chemical research involving soft materials, nanomaterials, small sensor development, and colloidal science. Beyond their research experience, students involved in CAICE receive interdisciplinary training in research ethics, effective science communication, and entrepreneurialism, equipping them with the required tools to address future grand challenges in science. CAICE research is shared via a spectrum of educational and outreach activities, including: 1) science communication and outreach through storytelling, 2) CAICE-developed CLEAR (Collaborative Learning in Environmental and Aerosol Research) particle counters used in formal and informal education, and 3) general public outreach events in close collaboration with the UC San Diego's Birch Aquarium and other public venues.The primary objective of CAICE involves developing molecular level insight into chemical processes occurring in the marine atmosphere. CAICE studies are investigating how chemical heterogeneity, morphology, phase, and molecular composition, at the individual aerosol particle level, control the properties and reactivity of marine aerosols. To achieve these goals, CAICE utilizes a unique experimental ocean-atmosphere interaction facility designed to bring the full complexity of the ocean-atmosphere system directly into the laboratory to allow investigations into aerosol formation and chemical transformations in a controlled setting. These signature experiments serve to guide molecular level investigations through the distillation of chemical complexity and the identification of molecular building blocks that can be used to replicate the complex atmospheric interfaces. To accomplish these goals, CAICE research is divided into three research themes: 1) Production and characterization of marine aerosol particles: Replicating the chemical complexity of the ocean-atmosphere system in the laboratory, 2) Chemical reactions at environmental interfaces: Gas and aerosol transformations, 3) Molecular level impacts of marine aerosols on water uptake and ice nucleation. Through highly collaborative research, CAICE is developing a fundamental and chemically accurate picture of marine aerosol chemistry that will enable accurate predictions of the impact of marine aerosols on our environment.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.

在化学系化学创新中心(CCI)计划的支持下，加州大学圣地亚哥分校的NSF气溶胶对环境化学的影响中心(CAICE)正在与其他10个机构合作，在大气气溶胶化学领域开展高度合作的研究，重点是了解化学在海雾气溶胶中的作用。海洋环境中的气溶胶粒子在控制云的形成和寿命、大气化学成分、地表温度和降水模式以及人类和生态系统健康方面发挥着关键作用。CAICE的研究提供了对气溶胶化学的新见解，这将使对气溶胶颗粒对空气质量、气候和水文循环的影响的预测更加可靠。除了说明化学在影响从物理海洋学到海洋生物学的研究学科的环境过程中的核心作用外，CAICE还积极开发新的实验和计算工具，应用于涉及软材料、纳米材料、小型传感器开发和胶体科学的化学研究。除了他们的研究经验，参与CAICE的学生还接受研究伦理、有效的科学交流和创业精神方面的跨学科培训，为他们配备必要的工具，以应对未来科学领域的重大挑战。CAICE的研究通过一系列教育和外展活动分享，包括：1)通过讲故事进行科学交流和外展，2)CAICE开发的CLEAR(环境和气溶胶研究合作学习)粒子计数器，用于正式和非正式教育，以及3)与加州大学圣地亚哥分校的桦树水族馆和其他公共场所密切合作的一般公众外展活动。CAICE的主要目标是发展对海洋大气中发生的化学过程的分子水平的洞察。CAICE研究正在调查单个气溶胶颗粒水平上的化学异质性、形态、物相和分子组成如何控制海洋气溶胶的性质和反应性。为了实现这些目标，CAICE利用了一种独特的海洋-大气相互作用实验设施，旨在将海洋-大气系统的全部复杂性直接带入实验室，以便在受控环境下研究气溶胶的形成和化学转化。这些标志性实验通过蒸馏化学复杂性和识别可用于复制复杂大气界面的分子构件来指导分子水平的研究。为了实现这些目标，CAICE的研究分为三个研究主题：1)海洋气溶胶颗粒的产生和表征：在实验室中复制海洋-大气系统的化学复杂性；2)环境界面上的化学反应：气体和气溶胶转化；3)海洋气溶胶对水吸收和冰核形成的分子水平影响。通过高度合作的研究，CAICE正在开发一幅基本的、化学上准确的海洋气溶胶化学图景，这将使对海洋气溶胶对我们环境的影响的准确预测成为可能。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势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

期刊论文数量（125）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effects of Atmospheric Aging Processes on Nascent Sea Spray Aerosol Physicochemical Properties.

DOI：
10.1021/acsearthspacechem.2c00258
发表时间：
2022-11-17
期刊：
ACS EARTH AND SPACE CHEMISTRY
影响因子：
3.4
作者：
Kaluarachchi, Chathuri P.;Or, Victor W.;Lan, Yiling;Hasenecz, Elias S.;Kim, Deborah;Madawala, Chamika K.;Dorc, Glorianne P.;Mayer, Kathryn J.;Sauer, Jonathan S.;Lee, Christopher;Cappa, Christopher D.;Bertram, Timothy H.;Stone, Elizabeth A.;Prather, Kimberly A.;Grassian, Vicki H.;V. Tivanski, Alexei
通讯作者：
V. Tivanski, Alexei

Chemical Composition of an Ultrafine Sea Spray Aerosol during the Sea Spray Chemistry and Particle Evolution Experiment

DOI：
10.1021/acsearthspacechem.2c00127
发表时间：
2022-07-06
期刊：
ACS EARTH AND SPACE CHEMISTRY
影响因子：
3.4
作者：
Glicker, Hayley S.;Lawler, Michael J.;Smith, James N.
通讯作者：
Smith, James N.

Electronic and mechanical anharmonicities in the vibrational spectra of the H-bonded, cryogenically cooled X − · HOCl (X=Cl, Br, I) complexes: Characterization of the strong anionic H-bond to an acidic OH group

氢键、低温冷却的 X －－－ HOCl (X=Cl, Br, I) 络合物振动光谱中的电子和机械非谐性：强阴离子氢键的表征

DOI：
10.1063/5.0083078
发表时间：
2022
期刊：
The Journal of Chemical Physics
影响因子：
0
作者：
Stropoli, Santino J.;Khuu, Thien;Boyer, Mark A.;Karimova, Natalia V.;Gavin-Hanner, Coire F.;Mitra, Sayoni;Lachowicz, Anton L.;Yang, Nan;Gerber, R. Benny;McCoy, Anne B.
通讯作者：
McCoy, Anne B.

Biologically Induced Changes in the Partitioning of Submicron Particulates Between Bulk Seawater and the Sea Surface Microlayer