Ground-based (Bruker 125 HR) and satellite (OCO-2) datasets of simultaneous CO₂ measurements in the vicinity of St. Petersburg were compared. Correction of the ground-based XCO₂ values by 2.5% and the choice of the optimal setup during spectral analysis allowed good agreement to be reached between the satellite and groundbased measurements. The bias between the two datasets was –0.01–0.16 ppm (–0.00–0.04%), standard deviations of the means, 1.42–1.49 ppm (0.35–0.37%), with a spatial mismatch of the XCO₂ data pairs of 100–300 km. Such small disagreement between the two types of measurements permits both methods to be used to solve the inverse problem of atmospheric transfer, i.e., estimation of anthropogenic emissions of CO₂.

比较了圣彼得堡附近同时进行的CO ₂测量的地面（Bruker 125 HR）和卫星（OCO-2）数据集。将地面XCO ₂值校正2.5％，并在频谱分析过程中选择最佳设置，可以使卫星测量与地面测量达到良好的一致性。两个数据集之间的偏差为–0.01–0.16 ppm（–0.00–0.04％），平均值的标准偏差为1.42-1.49 ppm（0.35–0.37％），并且XCO ₂数据对的空间不匹配为100– 300公里 两种类型的测量之间的如此微小的分歧使得这两种方法都可以用来解决大气传输的反问题，即估算人为排放的CO ₂。