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 GDP4.0 level-2 total ozone data.

REGION: Africa
	ID	Name	Country	Lat	Lon	Type
	340D	SPRINGBOK	south Africa	-29.67	17.9	Dobson
	2d	TAMANRASSET	Algeria	22.8	5.52	Dobson
	265d	IRENE	south Africa	-25.25	28.22	Dobson
	245d	ASWAN	Egypt	23.97	32.45	Dobson
	175d	NAIROBI	Kenya	-1.27	36.8	Dobson
	152d	CAIRO	Egypt	30.08	31.28	Dobson
6 records found! (Records from 1 to 6 - Page 1/1)