Andrews Elisabeth, Zabala Inés, Carrillo-Cardenas Gerardo, Titos Gloria, Casquero-Vera Juan Andrés, Hallar A Gannet
University of Colorado, CIRES, Boulder, 80309, USA.
NOAA, Global Monitoring Laboratory, Boulder, 80305, USA.
Sci Data. 2025 Jun 4;12(1):937. doi: 10.1038/s41597-025-04931-y.
A harmonized data set of aerosol particle number size distributions and cloud condensation nuclei (CCN) concentrations at 10 US Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) sites is presented. Additional complementary data including total particle number concentration, aerosol chemical composition and aerosol optical properties are included where available. Calculated parameters related to particle activation, (e.g., activated fraction, hygroscopicity parameter and critical diameter) are provided. DOE/ARM data are acquired and processed following DOE/ARM protocols which are based on international recommendations. Here, the data have undergone additional stages of quality assessment including various closure tests. This data set may be useful for studying aerosol processes and, with other data, assessing aerosol-cloud- interactions. High-resolution (5-min) data is provided along with 1-h averaged data, making the data set suitable for exploring the importance of new particle formation (NPF) events on CCN concentrations. Further applications include model and satellite evaluation of aerosol size distributions and CCN concentrations, and exploring relationships among different aerosol properties which may be useful for improving model parametrizations.
本文展示了美国能源部（DOE）10个大气辐射测量（ARM）站点的气溶胶粒子数粒径分布和云凝结核（CCN）浓度的统一数据集。如有可用数据，还包括总粒子数浓度、气溶胶化学成分和气溶胶光学特性等补充数据。提供了与粒子活化相关的计算参数（例如活化分数、吸湿性参数和临界直径）。DOE/ARM数据是按照基于国际建议的DOE/ARM协议获取和处理的。在此，数据经过了包括各种闭合测试在内的额外质量评估阶段。该数据集可能有助于研究气溶胶过程，并与其他数据一起评估气溶胶 - 云相互作用。提供了高分辨率（5分钟）数据以及1小时平均数据，使该数据集适合探索新粒子形成（NPF）事件对CCN浓度的重要性。进一步的应用包括对气溶胶粒径分布和CCN浓度进行模型和卫星评估，以及探索不同气溶胶特性之间的关系，这可能有助于改进模型参数化。
