Influence of deep convection on particle formation and aerosol budget in the free troposphere from airborne observations with HALO (PARTFORM-HALO)

该项目(利用HALO进行空中观测得出的深对流对自由对流层中粒子形成和气溶胶收支的影响；缩写为PARTFORM-HALO)涉及当前大气和气候研究的关键主题之一，即大气气溶胶粒子与云特性和降水强度的相互作用及其对气候的间接影响。PARTFORM-HALO支持和补充德国航天局对ACRIDICON(气溶胶、云、降水和热带外对流云系的辐射相互作用和动力学)的气溶胶微物理测量的贡献，ACRIDICON是德国新型研究飞机HALO的首批主要任务之一。ACRIDICON财团将在Halo上运行各种仪器，以测量气溶胶和云特性、痕量气体和辐射。特派团的目标区域将是西班牙北部，那里的雷暴系统在夏季定期发展，边界层的条件可以从污染到干净，为对流云内部和外流的过程研究提供了理想的试验台。HALO侧重于对观测数据的分析，还将包括与斯德哥尔摩大学合作建立的云分辨气溶胶模型。为了能够进行准确、高质量的微物理气溶胶测量，深入描述在光晕扩展高度范围内的仪器性能，特别是新的凝聚粒子计数器，是该项目的重要组成部分。

This project (Influence of deep convection on particle formation and aerosol budget in the free troposphere from airborne observations with HALO; acronym PARTFORM-HALO) addresses one of the key topics in current atmospheric and climate research, namely the interaction of atmospheric aerosol particles with cloud properties and precipitation intensity and their indirect effect on climate. PARTFORM-HALO supports and complements the DLR contribution of aerosol microphysical measurements to ACRIDICON (Aerosol, Cloud, Precipitation, and Radiation Interactions and Dynamics of Extra-Tropical Convective Cloud Systems), one of the first major missions of the new German research aircraft HALO. The ACRIDICON consortium will operate on HALO a variety of instruments to measure aerosol and cloud properties, trace gases, and radiation. Target region of the mission will be Northern Spain, where thunderstorm systems develop regularly in summer and where conditions in the boundary layer can vary from polluted to clean cases, providing an ideal test bed for process studies inside and in the outflow of convective clouds. PARTFORM-HALO focuses on the analysis of the observational data, and will include also cloud-resolved aerosol modelling in collaboration with University of Stockholm. In order to be able to conduct accurate, high quality microphysical aerosol measurements, in-depth characterization of instrument performance within the extended altitude range of HALO, in particular of new condensation particle counters, is an essential part of this project.