Nh

50% humidity

1.1 x 10-4 at p > 1.0 bar, decreasing to (4.5 ± 1.0) x 10-9

at 500 mbar with fractional scale height f = 0.07

Ground-based microwave Ground-based microwave Ground-based 5 ^m ISO 5 ^m ISO mid-IR Cassini IR

de Pater and Massie (1985)

de Pater and Massie (1985)

Noll and Larson (1991) de Graauw et al. (1997) de Graauw et al. (1997) Fletcher et al. (2007a)

H2S

Not detected (3.4± 0.4) x 10-3

Ground-based microwave Ground-based 1.3, 2, 6, 21, and 70 cm

Briggs and Sackett (1989)

h2o

2.3 x 10-7 (upper troposphere) (2-23) x 10-9 at p < 0.3mbar

ISO 5 ^m ISO

de Graauw et al. (1997) Feuchtgruber et al. (1997)

ch4

~5 x 10-3 (4.5± 0.9) x 10-3 (4.7 ± 0.2) x 10-3

Voyager mid-IR CIRS far/mid-IR CIRS far/mid-IR

Courtin et al. (1984) Flasar et al. (2005) Fletcher et al. (2008b)

ch3d

(3.3 ± 1.5) x 10-7 (3.0 ± 0.2) x 10-7

Ground-based 5 ^m CIRS mid-IR

Noll and Larson (1991) Fletcher et al. (2008b)

ph3

1 x 10-6 at p < 400mbar, 7(+3,-2) x 10-6 at p > 400 mbar

3 x 10-6 (upper troposphere cut off at 100 mbar)

3 x 10-7 at 150mbar,

6 x 10-6 below 600 mbar

7 x 10-6 in deep atmosphere (5.9 ± 0.2) x 10-6 at p > 500 mbar decreasing with fractional scale height f = 0.31 to (3.2 ± 0.4) x 10-7 at 100mbar

Ground-based 5 ^m

ISO 5 ^m Ground-based 8.9 cm-1

ISO 43-197 ^m Cassini IR

Noll and Larson (1991)

de Graauw et al. (1997) Weisstein and Serabyn (1994)

Burgdorf et al. (2004) Fletcher et al. (2008b), Fletcher et al. (2007a)

Mole fraction

Measurement technique

Reference

AsHs

(2.64 i O.88) x 1O"9 2.3 x 1O"9 (troposphere)

Noll and Larson (1991) de Graauw et al. (l997)

GeH4

(3.5 i 3.5) x 1O"1() (troposphere) 2.3 x 1O"9 (troposphere)

Noll and Larson (1991) de Graauw et al. (l997)

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