ACT-America: L3 Merged In Situ Atmospheric Trace Gases and Flask Data, Eastern USA

This dataset provides merged data products acquired during flights over the central and eastern United States as part of the Atmospheric Carbon and Transport - America (ACT-America) project. Two aircraft platforms, the NASA Langley Beechcraft B200 King Air and the NASA Goddard Space Flight Center's C-130H Hercules, were used to collect high-quality in situ measurements across a variety of continental surfaces and atmospheric conditions. The merged data products are composed of continuous in situ measurements of atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), ozone (O3), and ethane (C2H6, B200 aircraft only) that were averaged to uniform intervals and merged with aircraft navigation and meteorological variables as well as trace gas concentrations from discrete flask samples collected with the Programmable Flask Package (PFP). These merged data products provide integrated measurements at intervals useful to the modeling community for studying the transport and fluxes of atmospheric carbon dioxide and methane across North America.

本数据集汇聚了作为大气碳与传输-美洲（ACT-America）项目一部分，在美国中东部地区飞行期间获取的合并数据产品。该项目采用了NASA兰利Beechcraft B200 King Air和NASA戈达德太空飞行中心的C-130H大力神两款飞行平台，对多种大陆地表和大气条件进行了高质量的原位测量。合并数据产品由大气二氧化碳（CO2）、甲烷（CH4）、一氧化碳（CO）、臭氧（O3）以及乙烷（C2H6，仅B200飞机）的连续原位测量组成，这些测量值被平均到统一的间隔，并与飞机导航、气象变量以及使用可编程采样包（PFP）收集的离散样品中的痕量气体浓度合并。这些合并数据产品为北美大气二氧化碳和甲烷的传输和通量研究提供了对建模社区有用的综合测量数据。