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Table A.1

Reactions with |RCC| > 0.2 for several of the main atmospheric species.

Reaction Number of occurrences Maximum RCC Fi gi
O(3P) + CNN → CO + N2 6 0.43 3.0 7.0
C + N2 → CNN 6 0.51 1.8 10.0
10.0 0.0
30.0 0.0
N(4S) + N(4S) → N2 5 0.42 2.5 100.0
2.0 100.0
1.0 0.0
CH4 + hv → CH3 + H 4 0.33 1.2 -
CH + CH4 → C2H4 + H 4 0.44 1.3 4.45
N(2D) + CO → N(4S) + CO 4 1.0 1.6 300.0
CO + hv → CO+ + e− 4 0.34 1.2 -
N(4S) + H → NH 3 0.55 3.16 100.0
2.0 100.0
30.0 0.0
H + iC4H7 → CH3 + CH2CHCH2 3 0.22 0.0 0.0
0.0 0.0
1.0 0.0
3 0.29 1.2 -
3 0.46 1.4 0.0
CO+ + H2 → HOC+ + H 3 0.23 1.15 0.0
CO+ + C → C+ + CO 3 0.28 1.4 0.0
N+ + C → N(4S) + C+ 3 0.80 10.0 0.0
3 0.61 1.2 -
CH4 + hv → 1CH2 + H2 2 0.28 1.2 -
CH3CH2CCH + hv → C4H5 + H 2 0.23 1.2 -
N(2D) + C6H5C6H5 → AROM 2 0.21 3.0 0.0
N(2D) + C2H3 → NH + C2H2 2 0.2 2.0 7.0
N(4S) + CH → CN + H 2 0.26 1.6 7.0
O(3P) + CN → CO + N(4S) 2 0.27 2.0 0.0
C + H2 → 3CH2 2 0.30 2.0 100.0
3.0 100.0
1.0 0.0
2 0.39 1.2 -
2 0.24 1.4 0.0
2 0.22 3.0 0.0
2 0.21 2.0 0.0
2 0.22 1.25 0.0
2 0.29 3.0 0.0
2 0.31 2.0 100.0
3.0 100.0
1.6 0.0
2 0.22 1.6 0.0
2 0.21 1.6 0.0
2 0.71 2.0 0.0
2 0.72 2.0 0.0
N2 + ME → N+ + N(2D) + e− 2 0.36 1.2 -
N2 + ME → N(4S) + N(2D) 2 0.46 1.2 -

Notes. These reactions are identified through the sensitivity analyses done for each of the main atmospheric species at the altitude where the uncertainty on this species abundance is maximum, as given in Table 6. These analyses are performed for 250 iterations of the Monte Carlo procedure. The number of occurrences is the number of main species for which the considered reaction has a RCC higher than 0.2 in absolute value. Fi is the uncertainty factor at 300 K (=Fi(300K)) for all reactions except for photodissociations, photoionizations, and reactions with magnetospheric electrons (ME), where it is the global uncertainty factor (in this case the value is given in bold); gi is the coefficient allowing to compute Fi at different temperatures following Eq. (8). For three-body reactions, we give the uncertainty factors corresponding, respectively, to k0, k∞, and kr (cf. Eq. (10)).

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