AGS-PRF: Modeling Water Content and Solute Activities of Atmospheric Aerosols at Extremely Low Relative Humidities

AGS-PRF：模拟极低相对湿度下大气气溶胶的含水量和溶质活性

• 批准号: 1137701
• 负责人: Cari Dutcher
• 金额: $ 17.2万
• 依托单位: Dutcher Cari S
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1137701&HistoricalAwards=false
• 关键词: AGS; PRF; Modeling; Water; Content

Dr. Cari S. Dutcher was awarded an Atmospheric and Geospace Sciences Postdoctoral Research Fellowship to conduct a research project with Anthony Wexler at the University of California at Davis (UCD). Dutcher will employ a statistical thermodynamic approach to the uptake of atmospherically important species onto particles that are important in the air, such as black carbon, organics and water-containing aerosols. The thermodynamic treatment of aerosol properties will be extended to conditions found in the upper troposphere, with low temperatures (relevant to higher altitudes and latitudes) and at low relative humidity (relevant to arid climates and some higher altitude situations). Results will enhance thermodynamic predictions of the Extended Aerosol Inorganics Model (E-AIM) and will improve understanding of (1) the interactions of gases, particles, aerosols and water in the earth's atmosphere, (2) the modification of thermodynamic properties in the cold, dry arid conditions found in the upper troposphere and (3) the impact, both direct and indirect, sorption processes have on the role of particles in climate.Dutcher will also develop a web-based model calculator to enable those who are not experts in atmospheric thermodynamics to make effective use of models for practical calculations. Dutcher will integrate research and education through mentorship of undergraduate researchers and by engaging in interactive environmental and conservational demonstrations at local schools. The project will also support the outreach programs currently underway at the Air Quality Research Center at UCD, hosting activities from high-school group tours to international conferences in air quality and climate change. Several activities would be aimed at young girls.

Cari S. Dutcher博士被授予大气和地理科学博士后研究奖学金，与加利福尼亚大学戴维斯分校（UCD）的安东尼·韦克斯勒（Anthony Wexler）一起进行研究项目。荷兰人将采用一种统计热力学方法来吸收大气中重要的物种对空气中重要的颗粒，例如黑碳，有机物和含水的气溶胶。气溶胶特性的热力学处理将扩展到在对流层上部发现的条件，其温度低（与较高的高度和纬度有关），并且在低相对湿度（与干旱气候和一些较高海拔高度的情况有关）下。结果将增强对延长气溶胶无机模型（E-AIM）的热力学预测，并将改善对（1）地球大气中气体，颗粒，气溶胶和水的相互作用的理解，（（2）在上流层和（3）上的隔离和（3）在寒冷，干旱条件下的热力学特性的修饰，直接构成了（3），并且在（3）上都在（3）上有侵蚀，并且在（3）上都在（3）上构成了（3）。气候。Dutcher还将开发基于网络的模型计算器，以使那些不是大气热力学专家的人能够有效利用模型进行实际计算。荷兰人将通过本科研究人员的指导以及在当地学校进行互动环境和保护示范来整合研究和教育。该项目还将支持UCD空气质量研究中心正在进行的外展计划，从高中小组巡回演出到空气质量和气候变化的国际会议活动。几项活动将针对年轻女孩。