A persistent imbalance in HO x and NO x photochemistry of the upper troposphere driven by deep tropical convection
Prather, Michael J.
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CitationPrather, Michael J., and Daniel J. Jacob. 1997. “A Persistent Imbalance in HO x and NO x Photochemistry of the Upper Troposphere Driven by Deep Tropical Convection.” Geophysical Research Letters 24, no. 24: 3189–3192.
AbstractConvection in the tropics turns over the upper troposphere at rates (0.08 d−1) comparable to photochemical processes controlling the absolute abundance of HOx (OH + HO2) and the abundance of NOx (NO + NO2) relative to HNO3. Here we identify convection of boundary-layer CH3OOH as a primary source of HOx to the upper troposphere. Turnover of NOx leads to NO/HNO3 ratios much higher than predicted for local photochemical steady-state. Through convective transport the upper troposphere is more photochemically active in producing O3, an important greenhouse gas.
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