TRACER-CAT-LANL Aerosol Optics and Chemical Speciation - CAPS-SSA

Aerosol size distribution, optical properties, and speciation data collected in La Port TX, during TRACER-CAT-LANL, July 2022, with basic trace gas measurements. All sampling was conducted with an identical aerosol inlet as the standard ARM-AOS systems.The TRacking Aerosol Convection interactions ExpeRiment Carbonaceous Aerosols Thrust by Los Alamos National Laboratory (TRACER-CAT-LANL, July 2022) was designed to complement the larger ARM TRACER science goals to understand convective cloud lifecycles and aerosol-convection interactions. TRACER-CAT-LANL is focused on understanding the relationship between particle composition and light absorption and the influence of water uptake on this relationship.This aerosol and trace gas data can be used to understand the relationship between particle composition and light absorption and the influence of water uptake on this relationship. Instruments Include:Picarro GHGPhotoacoustic Soot Spectrometer (PASS-3)Humidified-cavity attenuated phase shift-single scattering albedo particulate matter monitor (H-CAPS-PMSSA)Soot Particle Aerosol Mass Spectrometer (SPAMS)Single-Particle Soot Photometer (SP2)Cloud Condensation Nuclei Counter (CCNc)Aerodynamic Particle Sizer (APS)Scanning Mobility Particle Sizer (SMPS)

2022年7月于美国得克萨斯州拉波特（La Port TX）开展的TRACER-CAT-LANL实验期间采集的气溶胶粒径分布、光学特性及组分数据，同步配套基础痕量气体测量结果。所有采样均采用与标准ARM-AOS系统一致的气溶胶进气装置。
本次实验全称为由洛斯阿拉莫斯国家实验室主导的气溶胶对流相互作用追踪-炭黑气溶胶实验（TRacking Aerosol Convection interactions ExpeRiment Carbonaceous Aerosols Thrust by Los Alamos National Laboratory，TRACER-CAT-LANL，2022年7月），旨在配合更大规模的ARM TRACER科学目标，即解析对流云生命周期与气溶胶-对流相互作用机制。TRACER-CAT-LANL的核心研究方向为阐明颗粒物组分与光吸收之间的关联，以及水汽摄取对该关联的调控作用。
本次公开的气溶胶与痕量气体数据集可用于进一步探究颗粒物组分与光吸收的关系，以及水汽摄取对该关系的影响。
所用观测仪器包括：
皮卡尔罗温室气体光声炭黑光谱仪（Picarro GHGPhotoacoustic Soot Spectrometer, PASS-3）
加湿腔衰减相移-单次散射反照率颗粒物监测仪（Humidified-cavity attenuated phase shift-single scattering albedo particulate matter monitor, H-CAPS-PMSSA）
炭黑粒子气溶胶质谱仪（Soot Particle Aerosol Mass Spectrometer, SPAMS）
单颗粒炭黑光度计（Single-Particle Soot Photometer, SP2）
云凝结核计数器（Cloud Condensation Nuclei Counter, CCNc）
空气动力学粒径谱仪（Aerodynamic Particle Sizer, APS）
扫描迁移率粒径谱仪（Scanning Mobility Particle Sizer, SMPS）