Table 4: Hydrostatic models solution fits for disk-averaged lines. S and F stand for the Spencer et al. (2005) and Feaga et al. (2008) SO₂ distribution models.

Date	Lead/	Gas model	Gas temperature	Horizontal
	Trail		(K)	wind (m/s)
9/10/1999	L	S	128	01
9/10/1999	L	S	130	180
25/10/1999	L	S	140	01
25/10/1999	L	S	150	270
28/01/2005	L	S	157	01
28/01/2005	L	S	166	200
9/10/1999	L	F	147	01
9/10/1999	L	F x 3	132	01
9/10/1999	L	F x 3	135	170
25/10/1999	L	F x 3	145	01
25/10/1999	L	F x 3	150	200
28/01/2005	L	F x 3	165	01
28/01/2005	L	F x 3	175	200
10/10/1999	T	S	136	01
10/10/1999	T	S x 0.2	150	01
10/10/1999	T	S x 0.4	165	300
26/10/1999	T	S x 0.2	165	01
26/10/1999	T	S x 0.3	175	250
05/02/2005	T	S x 0.4	150	01
05/02/2005	T	S x 0.4	160	200
10/10/1999	T	F	152	01
10/10/1999	T	F x 0.7	160	01
10/10/1999	T	F x 1.3	155	220
26/10/1999	T	F x 0.5	190	01
26/10/1999	T	F x 0.9	180	250
05/02/2005	T	F x 1.3	150	01
05/02/2005	T	F x 1.3	155	200

¹ Assumed.