Greenhouse gases play an essential role in governing Earth's radiation budget while atmospheric CO 2 has been rising at an increasing rate (e.g., 1.50 ppm/year for 1990-1999, 1.97 ppm/year for 2000-2009, 2.40 ppm/year for 2010Peters et al., 2020). Very recently, the daily average of atmospheric CO 2 concentrations at Mauna Loa observatory in Hawaii was recorded as high as 421.21 ppm (NOAA-GML). Human activities, such as burning fossil fuels and deforestation, disturb the natural balance between CO 2 sources and sinks and are causing this increase (Salam & Noguchi, 2005;Schneider et al., 2021), making quantification of CO 2 sources and sinks essential to long term climate monitoring (Barnes et al., 2016;Masarie et al., 2014). Terrestrial ecosystem carbon fluxes are particularly uncertain, and earth system models differ vastly in their simulations of projected terrestrial CO 2 uptake in a rapidly changing climate (e.g., Keenan & Williams, 2018).An improved understanding of the spatiotemporal changes in atmospheric CO 2 due to weather systems will strengthen our ability to infer uptake and release of CO 2 from terrestrial ecosystems and the ocean through inverse methods. High-resolution observations of CO 2 vertical and spatial variability across different spatial scales (e.g.,

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