Developments concerning the physical and chemical characterization of ice nucleating aerosol particles with HALO: High volume flow aerosol particle sampling system, automated freezing array, and analytical methods

HALO 冰核气溶胶颗粒物理和化学表征的进展：高体积流量气溶胶颗粒采样系统、自动冷冻阵列和分析方法

• 批准号: 316508271
• 负责人: Professor Dr. Hartmut Herrmann
• 金额: --
• 依托单位: Leibniz-Institut für Troposphärenforschung e.V. (TROPOS)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/316508271?language=en
• 关键词: Developments; concerning; physical; chemical; characterization

The proposed project is based on and extents investigations to be carried out in the framework of DFG Transregional Collaborative Research Centre TR 172, entitled "ArctiC Amplification: Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms" (AC)3, and here especially project B04 "Ship-based physical and chemical characteristics and sources of Arctic ice nucleating particles and cloud condensation nuclei". In TR 172, B04, the goal is to gain information (number concentration; chemical nature, mineral or organic; origin, local sources or long range transport) on Arctic ice nucleating particles (INP), by means of ship-borne measurements. However, these measurements can only be regarded as a first step, and measurements at different altitudes (inside the boundary layer and in the free troposphere) are mandatory to further increase our understanding of Arctic aerosol and cloud interactions in general, and Arctic cloud glaciation in particular. Therefore, activities carried out in TR 172 should be complemented by future INP-related measurements on board the research aircraft HALO. Specifically we are aiming at determining the number concentration of Arctic INP at higher altitudes, and finding indications concerning the INPs origin / sources by means of chemical particle composition analysis. To achieve this, in the framework of the present proposal we will focus on the development, testing and certification of a suitable high volume flow filter sampling system, for sub- and super-micron aerosol particles for operation on board the German research airplane HALO. The sampling system will mainly consist of an adapted version of the already existing (but not yet certified) "micrometre aerosol inlet" (MAI), and a still to be developed high volume flow filter sampler. Consideration of high volume flows (order 100 l/min) is required because of the expected low aerosol particle and INP number concentrations, and the resulting need for the collection of large air volumes. The first scientific application of the developed system is planned for the future ARCTIC-HALO campaign, foreseen for the second phase of TR 172 years (2020-2023), and will deal with the investigation of INP properties in the Arctic. However, after its successful development, the sampling system can be operated on other missions in which sampling of sub- and super-micron sized aerosol particles is required. For carrying out the planned works, we apply for one 75%, and one 50% PostDoc-positions for 3 years as well as the costs for adaptation and certification of the high volume aerosol inlet and the filter sampler. All other direct costs will be funded from the TROPOS internal budget.

The proposed project is based on and extents investigations to be carried out in the framework of DFG Transregional Collaborative Research Centre TR 172, entitled "ArctiC Amplification: Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms" (AC)3, and here especially project B04 "Ship-based physical and chemical characteristics and sources of Arctic ice nucleating particles and cloud condensation nuclei".在TR 172，B04中，目标是通过船上测量值获得北极冰核颗粒（INP）上的信息（数量浓度；化学性质，矿物质或有机物，原点，局部来源或远距离运输）。但是，这些测量值只能被视为第一步，并且必须在不同高度（内部和自由对流层中）的测量值进一步提高我们对北极气溶胶和云相互作用的理解，尤其是北极云冰川。因此，在TR 172中进行的活动应与研究飞机光环的未来与INP相关的测量值进行补充。具体而言，我们的目的是确定较高高度的北极INP的数量浓度，并通过化学粒子组成分析发现有关INP Origin /源的指示。为了实现这一目标，在本提案的框架内，我们将重点介绍合适的高量流量过滤器采样系统的开发，测试和认证，用于用于在德国研究飞机光环上运行的子和超级微米气溶胶颗粒。采样系统将主要由已经存在的（但尚未经过认证的）“微米气溶胶入口”（MAI）的改编版组成，并且仍将开发一个高量流量过滤器采样器。由于预期的低气溶胶颗粒和INP数量浓度，需要考虑高容量流量（100 l/min），并且需要收集大型空气体积。已开发系统的第一个科学应用计划针对未来的北极 - 哈洛运动，该运动预测在TR 172年的第二阶段（2020-2023），并将处理北极INP特性的调查。但是，在成功开发之后，可以在其他任务上操作采样系统，在其他任务中，需要对亚微米和超级尺寸的气溶胶颗粒进行采样。为了进行计划中的工作，我们申请了3年的75％和一个50％的博士后位置，以及大量气溶胶入口和过滤器采样器的适应和认证成本。所有其他直接成本将从Tropos内部预算中资助。

项目成果

Determination of highly polar compounds in atmospheric aerosol particles at ultra-trace levels using ion chromatography Orbitrap MS.

• DOI: 10.1002/jssc.202001048
• 发表时间: 2021-04
• 期刊: Journal of separation science
• 影响因子: 3.1
• 作者: Carlo Kwiezinski;C. Weller;D. van Pinxteren;M. Brüggemann;S. Mertes;F. Stratmann;H. Herrmann

Wintertime Airborne Measurements of Ice Nucleating Particles in the High Arctic: A Hint to a Marine, Biogenic Source for Ice Nucleating Particles

• DOI: 10.1029/2020gl087770
• 发表时间: 2020-07-16
• 期刊: GEOPHYSICAL RESEARCH LETTERS
• 影响因子: 5.2
• 作者: Hartmann, M.;Adachi, K.;Stratmann, F.
• 通讯作者: Stratmann, F.