Collaborative Research: Cosmics Leaving OUtdoor Droplets (CLOUD) Consortium Membership

合作研究：宇宙留下户外水滴（云）联盟成员

基本信息

批准号：
1801329
负责人：
Richard Flagan
金额：
$ 28.25万
依托单位：
California Institute of Technology
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-06-01 至 2023-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1801329&HistoricalAwards=false
关键词：
Collaborative Research Cosmics Leaving OUtdoor

项目摘要

This project supports the continued membership in the CLOUD consortium at CERN, by Carnegie-Mellon University and the California Institute of Technology, and provides new membership for the University of Colorado at Boulder. The CLOUD (Cosmics Leaving OUtdoor Droplets) experimental facility is likely the world's most sophisticated experiment addressing atmospheric new-particle formation. It was constructed to measure new particle formation under highly controlled, ultra-clean conditions.CLOUD is an international member-funded consortium supporting the maintenance and operation of the experiment. Members raise research funding from their national agencies to participate. Experiments are conducted at CERN during 1-2 carefully planned campaigns per year, each lasting 8-10 weeks. These campaigns are planned, and data are assessed, during two major week-long consortium meetings each year, while more focused, intensive data analysis is carried out at all times by individuals, but also in several focused team meetings scheduled and hosted on an ad-hoc basis during the course of each year as analysis and interpretation require. Virtual team meetings via skype and other media are ongoing and continuous.In addition to providing the required consortium fee, this project will support shipping and travel to CLOUD experimental campaigns and associated consortium meetings and data workshops. The doctoral and postdoctoral students associated with the project will be integrated into an international collaborative network of students and senior researchers who are among the most highly regarded in aerosol science and atmospheric chemistry. They will receive invaluable training in the conduct of international collaborative research.The subject of the CLOUD experiments is of high national and international interest. Aerosol-cloud interactions are among the largest sources of uncertainty in the understanding of climate forcing and climate sensitivity. CLOUD experiments confirm that ions can stabilize nucleating clusters, and that, for otherwise weakly bound clusters (such as ammonia sulfuric acid, organics with sulfuric acid, and pure organics), ions can enhance nucleation rates by factors of 3-100 depending on conditions. During the period of this project, three campaigns, CLOUD-13, CLOUD-14, and CLOUD-15, are planned. The campaigns will focus on the following broad topics: the role of organic oxidation chemistry in new-particle formation and growth; new-particle formation in urban areas; new-particle formation in the marine atmosphere; and the role, if any, of charge in cloud-droplet formation and ice-crystal nucleation.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.

该项目支持卡内基 - 梅隆大学和加利福尼亚理工学院的CERN云财团的持续会员资格，并为科罗拉多大学博尔德大学提供了新的会员资格。云（宇宙离开室外液滴）实验设施可能是世界上最复杂的实验，以解决大气新粒子形成。它的构建是为了测量高度控制的超洁变条件下的新粒子形成。Cloud是一个由国际会员资助的财团，支持实验的维护和运行。成员从其国家机构筹集研究资金参加。在每年1-2仔细计划的运动中，每年持续8-10周在CERN进行实验。计划了这些活动，并在每年的两个主要一周的联盟会议上评估数据，同时个人始终由个人进行更集中，密集的数据分析，但在安排和主持广告的几次集中的团队会议中也进行了广泛的数据分析 - 在每年的分析和解释要求的过程中，HOC基础。通过Skype和其他媒体的虚拟团队会议持续且连续。除了提供所需的财团费用外，该项目将支持运输和前往云实验活动以及相关财团会议和数据研讨会。与该项目相关的博士和博士后生将纳入一个国际协作网络，由学生和高级研究人员组成，这些网络是气溶胶科学和大气化学中最受欢迎的研究人员。他们将接受国际合作研究的宝贵培训。云实验的主题具有很高的国家和国际兴趣。气溶胶云相互作用是对气候强迫和气候灵敏度的理解的最大不确定性来源。云实验证实，离子可以稳定成核簇，并且对于其他弱结合的簇（例如硫酸氨，硫酸和纯有机物的有机物），离子可以根据条件3-100的因素来提高成核速率。在该项目期间，计划了三个广告系列Cloud-13，Cloud-14和Cloud-15。这些运动将重点介绍以下广泛主题：有机氧化化学在新粒子形成和生长中的作用；城市地区的新粒子形成；海洋大气中的新粒子形成；以及在云流行形成和冰结晶成核中的作用（如果有的话）。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响评估标准来评估的。

项目成果

期刊论文数量（11）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Molecular Composition and Volatility of Nucleated Particles from α-Pinene Oxidation between −50 °C and +25 °C

α-蒎烯氧化成核颗粒在 50 °C 至 25 °C 温度下的分子组成和挥发性

DOI：
10.1021/acs.est.9b03265
发表时间：
2019
期刊：
Environmental Science & Technology
影响因子：
11.4
作者：
Ye, Qing;Wang, Mingyi;Hofbauer, Victoria;Stolzenburg, Dominik;Chen, Dexian;Schervish, Meredith;Vogel, Alexander;Mauldin, Roy L.;Baalbaki, Rima;Brilke, Sophia
通讯作者：
Brilke, Sophia

Rapid growth of new atmospheric particles by nitric acid and ammonia condensation