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. 2019 Nov 13;5(11):eaax9800. doi: 10.1126/sciadv.aax9800

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Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) sinks S, (B) divergence D, and (C) top-down NO_x emissions E = S + D. Numbers on top give spatial integrals for urban area (dashed rectangle) and greater area (250 × 250 km²). (D) Meridional sections of S, D, and E at 47.05°E (dotted rectangle), crossing PP9 and PP10.