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Table D.3

For Uranus and Neptune models, maximum differences of abundances (in %) for each species for which the reduced scheme is designed.

Species Uranus Neptune
H2O 9 × 10−4 (@8 × 106) 2 × 10−4 (@2 × 106)
CH4 2 × 10−2 (@8 × 106) 4 × 10−3 (@8 × 106)
CO 1 × 101 (@8 × 106) 8 (@1 × 106)
CO2 8 (@1 × 106) 6 (@1 × 106)
NH3 8 × 10−4 (@8 × 106) 2 × 10−4 (@8 × 106)
HCN 4 × 10−1 (@3 × 106) 3 (@2 × 106)
C2H2 4 × 10−2 (@8 × 106) 1 × 10−2 (@1 × 106)

Notes. The pressure level (@level in mbar) at which the maximum variation is reached is indicated in parentheses. These values are calculated within the region where quenching occurs ([106 –107] mbar).

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