ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2

This dataset provides information on greenhouse gases and human-produced air pollution, including atmospheric concentrations of carbon dioxide (CO2), methane (CH4), tropospheric ozone (O3), and black carbon (BC) aerosols, collected during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission. This dataset includes merged data from all instruments plus additional data such as numbered profiles and distance flown. Merged data products have been created for seven different aggregation intervals (1 second, 10 seconds, and 5 instrument-specific intervals). In the case of data obtained over longer time intervals (e.g., flask data), the merge files provide (weighted) averages to match the sampling intervals. This comprehensive dataset will be used to improve the representation of chemically reactive gases and short-lived climate forcers in global models of atmospheric chemistry and climate.

本数据集提供了关于温室气体及人为空气污染的信息，涵盖了二氧化碳（CO2）、甲烷（CH4）、对流层臭氧（O3）以及黑碳（BC）气溶胶在大气中的浓度，这些数据均来源于美国国家航空航天局（NASA）大气层析（ATom）任务期间进行的空中考察。数据集整合了所有仪器的数据，并额外包含了编号剖面和飞行距离等数据。针对不同聚合间隔（1秒、10秒及五种针对仪器特定的间隔）已生成合并数据产品。对于长时间间隔获取的数据（例如，采样瓶数据），合并文件提供了（加权）平均值以匹配采样间隔。此综合数据集将被用于优化全球大气化学与气候模型中化学活性气体及短寿命气候强迫剂的表征。