14C-based ΔffCO2 estimates for Heidelberg and OPE and input data for the Rhine Valley ffCO2 inversion (2019-2020)

These data files show the Δ14CO2, CO2 and CO measurements as well as the 14C-based ΔffCO2 estimates of the flask samples collected in Heidelberg (HEI, 2019-2020) and at the ICOS site Observatoire pérenne de l'environnement (OPE, Sep. 2020 - Mar. 2021). Moreover, modelled ΔffCO2 and ΔCO concentrations based on the Stochastic Time-Inverted Lagrangian Transport (STILT) model and the Netherlands Organization for Applied Scientific Research (TNO) emissions are given for the respective flask hours. These data are used to compare flask-based with inventory-based ΔCO/ΔffCO2 ratios (Maier et al., 2023a). For Heidelberg, also ΔCO-based ΔffCO2 estimates are presented for the afternoon hours in 2019 and 2020. The afternoon 14C- and ΔCO-based ΔffCO2 estimates from Heidelberg are used as observational constraint in the ffCO2 inversion performed in the Rhine Valley (Maier et al., 2023b).

本数据集包含2019—2020年在海德堡（HEI）以及2020年9月—2021年3月在国际碳观测系统（ICOS）长期环境观测台站（Observatoire pérenne de l'environnement，简称OPE）采集的气袋采样样品（flask samples）的Δ14CO2、二氧化碳（CO2）、一氧化碳（CO）测量数据，以及基于14C的ΔffCO2估算结果。此外，本数据集还提供了基于随机时间反转拉格朗日输送（Stochastic Time-Inverted Lagrangian Transport, STILT）模型以及荷兰应用科学研究组织（Netherlands Organization for Applied Scientific Research, TNO）排放清单的对应采样时段的模拟ΔffCO2与ΔCO浓度数据。这些数据被用于对比基于气袋采样与基于排放清单的ΔCO/ΔffCO2比值（Maier等人，2023a）。针对海德堡站点，本数据集还给出了2019年与2020年午后时段基于ΔCO的ΔffCO2估算结果。海德堡站点的午后时段基于14C与ΔCO的ΔffCO2估算结果，被用作莱茵河谷化石燃料CO2反演研究中的观测约束条件（Maier等人，2023b）。