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. Author manuscript; available in PMC: 2023 Jul 20.
Published in final edited form as: Atmos Chem Phys. 2022 Nov 2;22(21):14037–14058. doi: 10.5194/acp-22-14037-2022

Figure 6.

Figure 6.

Ambient (a) isoprene and (b) methanol mixing ratio (ppbv) versus temperature (°) for daytime values (08:00 to 20:00 LT) where PAR > 400 μmol m−2 s−1. Solid lines show exponential fits (major axis regression) to observations (black) and modeled (red) outputs, following the exponential temperature activity factor in Eq. (2) (Guenther et al., 2012). Shaded areas represent 95 % confidence intervals; r2 ≥ 0.5 for both species.

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