Table 3.

Ozonesonde stations used in satellite ozone comparison.

Station	Latitude	Longitude	No. of soundings	Period
Alert (CAN)	82.5	−62.3	1028	1987–2011
Resolute (CAN)	74.7	− 95.0	885	1978–2011
Uccle (BEL)	50.8	4.4	2299	1996–2013
Boulder (USA)	40.0	−105.3	698	1991–2015
Wallops (USA)	37.9	− 75.5	1779	1970–2013
Hilo (USA)	19.4	− 155.0	1717	1982–2013
Natal (BRA)	−5.5	− 35.3	661	1979–2013
Samoa (USA)	− 14.2	− 170.6	992	1995–2013
Lauder (NZL)	− 45.0	169.7	1275	1986–2008
Davis (ATA)	− 68.6	78.0	270	2003–2013
Neumeyer (ATA)	− 70.7	−8.3	1553	1992–2015