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. 2021 Sep 1;5(9):e2021GH000451. doi: 10.1029/2021GH000451

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© 2021 The Authors. This article has been contributed to by US Government employees and their work is in the public domain in the USA.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Simulated concentrations for CO (top), NO₂ (middle), and O₃ (bottom) from the Goddard Earth Observing System‐Composition Forecast forecasts accessed via Framework for Live User‐Invoked Data in September 2019. Near‐surface concentrations for the region of interest are shown for September 5, 2019 (left). The red line in these figures (left) indicates the location for the corresponding cross‐section plots (right).