Airborne measurements of Arctic aerosol and meteorological parameters using the UAV ALADINA in Ny-Ålesund during flight AIDA_ALADINA_20240604_41

The influence of aerosol particles on the Arctic climate system and their role in the Arctic amplification remains uncertain. Further research is required to gain a broader understanding of the processes that drive or suppress new particle formation along with transport and spatial distribution of aerosol particles, especially in the atmospheric boundary layer. This dataset provides airborne measurements of the aerosol particle number concentration in different size classes alongside meteorological parameters. During the field campaign, the uncrewed aerial system (UAV) ALADINA (Application of Lightweight Aircraft for Detecting In-situ Aerosols) operated from the airport in Ny-Ålesund, Svalbard, between 20 May and 4 June. The 38 measurement flights consist of 143 vertical profiles up to 930 m altitude above mean sea level (MSL) and 62 horizontal flight legs above land and the Kongsfjord at multiple constant altitudes. A detailed description of the AIDA campaign (Aerosol variability and Interaction with ambient conditions based on small-scale vertical and horizontal Distribution of Arctic measurements), the ALADINA system and the applied methods during the post-processing will be provided by Schuchard et al. (in preparation).

气溶胶粒子对北极气候系统的影响及其在北极放大效应中的作用仍存在不确定性。亟需开展进一步研究，以全面认知驱动或抑制新粒子生成、以及气溶胶粒子输送与空间分布的相关过程，尤其是大气边界层内的此类过程。本数据集提供了不同粒径档气溶胶粒子数浓度的机载测量数据，同时附带气象参数。本次野外观测作业期间，无人航空系统（uncrewed aerial system, UAV）ALADINA（轻量化机载气溶胶原位探测应用，Application of Lightweight Aircraft for Detecting In-situ Aerosols）于5月20日至6月4日期间，在斯瓦尔巴群岛新奥尔松机场开展观测。此次共完成38架次测量飞行，包含143条垂直探测剖面，最大探测高度可达平均海平面（MSL）以上930米，以及62条水平飞行航段，在陆地与孔斯峡湾上空的多个恒定高度处实施观测。关于本次AIDA野外观测计划（基于北极观测小尺度垂直与水平分布的气溶胶变异性及其与环境条件的相互作用，Aerosol variability and Interaction with ambient conditions based on small-scale vertical and horizontal Distribution of Arctic measurements）、ALADINA系统及后处理阶段所采用方法的详细说明，将由Schuchard等人（待刊）予以公布。