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Table D.1.

Chemical reactions included in the model

No. Reaction Reaction rate cm3 s−1
R1 H2 + hν → H + H
R2 → H 2 + + e $ \mathrm{H}_{2}^{+}+\mathrm{e} $
R3 → H+ + H + e
R4 H2O + hν → H + OH
R5 → H2 + O(1D)
R6 → O + H + H
R7 → OH+ + H + e
R8 → O+ + H2 + e
R9 → H+ + OH + e
R10 → H2O+ + e
R11 H + hν → H+ + e
R12 O + hν → O+ + e
R13 OH + hν → O + H
R14 → OH+ + e
R15 → O(1D) + H
R16 O2 + hν → O + O
R17 → O + O(1D)
R18 → O+ + O + e
R19 → O 2 + + e $ \mathrm{O_{2}^{+}}+\mathrm{e} $
R20 H2 + H2 → H2 + H + H 1.0 × 10−8exp(−84000/T)
R21 H2 + H2O → OH + H2 + H 5.8 × 10−9exp(−52900/T)
R22 H2 + O2 → O + O + H2 6.0 × 10−9exp(−52300/T)
R23 H2 + O2 → OH + OH 3.16 × 10−10exp(−21890/T)
R24 H2 + OH → O + H2 + H 6.0 × 10−9exp(−50900/T)
R25 H2 + H → H + H + H 4.67 × 10−7(T/300)−1exp(−55000/T)
R26 H 2 + H 2 + $ \mathrm{H_{2}}+\mathrm{H_{2}^{+}} $ → H 3 + + H $ \mathrm{H_{3}^{+}}+\mathrm{H} $ 2.08 × 10−9
R27 H2 + H2O+ → H3O+ + H 6.40 × 10−10
R28 H2 + O+ → OH+ + H 1.70 × 10−9
R29 H2 + OH+ → H2O+ + H 1.01 × 10−9
R30 H2 + O → OH + H 3.14 × 10−13(T/300)2.7exp(−3150/T)
R31 H2 + OH → H2O + H 2.05 × 10−12(T/300)1.52exp(−1736/T)
R32 H2 + O(1D) → H + OH 1.0 × 10−9
R33 H2O + H → OH + H + H 5.80 × 10−9exp(−52900/T)
R34 H2O + H+ → H2O+ + H 6.90 × 10−9(T/300)−0.5
R35 H 2 O + H 2 + $ \mathrm{H_{2}O}+\mathrm{H_{2}^{+}} $ → H2O+ + H2 3.90 × 10−9(T/300)−0.5
R36 H2O + O+ → H2O+ + O 3.20 × 10−9(T/300)−0.5
R37 H2O + OH+ → H2O+ + OH 1.59 × 10−9(T/300)−0.5
R38 H 2 O + H 2 + $ \mathrm{H_{2}O}+\mathrm{H_{2}^{+}} $ → H3O+ + H 3.40 × 10−9(T/300)−0.5
R39 H2O + H2O+ → H3O+ + OH 2.10 × 10−9(T/300)−0.5
R40 H 2 O + H 3 + $ \mathrm{H_{2}O}+\mathrm{H_{3}^{+}} $ → H3O+ + H2 5.90 × 10−9(T/300)−0.5
R41 H2O + OH+ → H3O+ + O 1.30 × 10−9(T/300)−0.5
R42 H2O + H → OH + H2 1.59 × 10−11(T/300)1.2exp(−9600/T)
R43 H2O + O → OH + OH 1.85 × 10−11(T/300)0.95exp(−8571/T)
R44 H + OH → O + H + H 6.00 × 10−9exp(−50900/T)
R45 H + H 2 + $ \mathrm{H}+\mathrm{H_{2}^{+}} $ → H2 + H+ 6.40 × 10−10
R46 H + O+ → O + H+ 5.66 × 10−10(T/300)0.36exp(8.6/T)
R47 H + H+ → H 2 + $ \mathrm{H_{2}^{+}} $ 1.15 × 10−18(T/300)1.49exp(−228/T)
R48 H + O2 → O + O + H 6.0 × 10−9exp(−52300/T)
R49 H + O2 → OH + O 2.61 × 10−10exp(−8156/T)
R50 H + O → OH 9.90 × 10−19(T/300)−0.38
Ref. McElroy et al. (2013)

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