The Global OzoneObserving System (GO3OS) consists of more than 140 monitoring stations of total ozone, the largest number of which is being located in the middle Northern latitudes, while the operation of these stations is being conducted using the following instruments:

• Dobson spectrophotometer
• Brewer spectrophotometer
• Filter Ozonometer ( M-83, M -124)

In the following table there are available for each station the results of the comparisons with the GOME-2 GDP4.6 level-2 total ozone data.

REGION: North America
	ID	Name	Country	Lat	Lon	Type
	77b	CHURCHILL	Canada	58.75	-94.07	Brewer
	67d	BOULDER	United States	40.02	-105.25	Dobson
	65d	TORONTO	Canada	43.78	-79.47	Dobson
	65b	TORONTO	Canada	43.78	-79.47	Brewer
	341D	HANFORD	United States	36.32	-119.63	Dobson
	338B	REGINA	Canada	50.21	-104.67	Brewer
	321B	HALIFAX	Canada	44.9	-63.5	Brewer
	320B	WINNIPEG	Canada	49.91	-97.24	Brewer
	319B	MONTREAL	Canada	45.47	-73.75	Brewer
	315B	EUREKA	Canada	79.89	-85.93	Brewer
	311M	HAVANA	Cuba	23.17	-82.33	M-124
	290B	SATURNA	Canada	48.78	-123.13	Brewer
	24b	RESOLUTE	Canada	74.72	-94.98	Brewer
	241b	SASKATOON	Canada	52.1	-105.28	Brewer
	21b	EDMONTON	Canada	53.57	-113.52	Brewer
	20d	CARIBOU	United States	46.87	-68.02	Dobson
	19d	BISMARCK	United States	46.77	-100.75	Brewer
	199d	BARROW	United States	71.32	-156.6	Dobson
	191d	SAMOA	United States	-14.25	-170.57	Dobson
	107d	WALLOPS-ISLAND	United States	37.87	-75.52	Dobson
	106d	NASHVILLE	United States	36.25	-86.57	Dobson
	105d	FAIRBANKS	United States	64.8	-147.89	Dobson
22 records found! (Records from 1 to 22 - Page 1/1)