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.

拟议的项目以DFG跨区域合作研究中心TR 172框架内开展的题为“北极放大：相关大气和表面过程及反馈机制”（AC）3的调查为基础，并扩大了调查范围，在此特别是项目B 04“北极冰成核颗粒和云凝结核的船基物理和化学特性及来源”。在TR 172，B 04中，目标是通过船载测量获得关于北极冰成核颗粒（INP）的信息（数量浓度;化学性质，矿物或有机物;起源，当地来源或远距离迁移）。然而，这些测量只能被视为第一步，在不同高度（边界层内和自由对流层）的测量是强制性的，以进一步增加我们对北极气溶胶和云的相互作用，特别是北极云冰川作用的理解。因此，在TR 172中进行的活动应得到未来在研究飞机HALO上进行的与INP有关的测量的补充。具体来说，我们的目标是确定在较高的海拔北极INP的数量浓度，并通过化学粒子成分分析找到有关INPs的起源/来源的迹象。为了实现这一目标，在本提案的框架内，我们将重点开发、测试和认证一种适用于德国研究飞机HALO上操作的亚微米和超微米气溶胶颗粒的合适的大流量过滤器采样系统。采样系统将主要包括现有（但尚未认证）“微米气溶胶入口”（MAI）的改装版本和尚待开发的高流量过滤采样器。由于预计气溶胶颗粒和INP数浓度较低，因此需要考虑高体积流量（100 l/min），并因此需要收集大量空气。已开发系统的首次科学应用计划用于未来的ARCTIC-HALO活动，预计将在TR 172年（2020-2023年）的第二阶段进行，并将处理北极INP属性的调查。然而，在研制成功之后，该采样系统可用于需要对亚微米和超微米尺寸的气溶胶颗粒进行采样的其他飞行任务。为了开展计划的工作，我们申请了一个75%和一个50%的博士后职位，为期3年，以及大容量气溶胶入口和过滤器采样器的适应和认证费用。所有其他直接费用将由TROPOS内部预算提供资金。

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.