DATA_ORIGIN             Environment Canada
DATA_SUBTYPE		Atmosphere
REGION                  Canada
VAR_DESC                Total-Column Ozone
VAR_NAME           	Ozone
VAR_UNITS              Dobson Unit
DATA_SAMPLING		Annual Average 5 Stations 
DELTA_T                 annual
START_TIME              1957
END_TIME                1998
STATION                 OzoneCan
data_type_code          at
data_process_notes	Data from 5 satellites is averaged 
data_src_region		5 locations across Canada; total-column data
data_src_contact	David Wardle, et al AES, Environment Canada
data_src_email		NONE
data_src_address	Atmospheric Environment Services, Environment Canada, Downsview, Ontario, Canada
data_src_phone		NONE
data_src_available	see web site
data_src_web_data	http://www.ec.gc.ca/ind/English/ozone/Tech_Sup/stsup4_e.cfm
data_src_web_info	http://www.ec.gc.ca/ind/English/ozone/
data_src_citation	Fergusson, A, and Wardle, D.I., 1998, Arctic Oxone: The Sensitivity of the Ozone Layer to Chemical Depletion and Climate Change, Environment Canada, 27pp
data_acquisit_mode	input from Figure 4 "Annual average ozone levels" from web site
data_collect_method	satellite data from 5 locations
INST_TYPE		satellite
FGDC_keywords           NONE
data_map_lon            100 W
data_map_lat            60 N
data_map_z		column
data_src_comments	total-column data includes tropospheric and stratospheric ozone, and is gathered the following 5 locations:  Toronto, Ontario (43º47'N); Edmonton, Alberta (53º33'N); Resolute, Northwest Territories (74º43'N)[May-Oct.only]; Churchill, Manitoba (58º45'N); and Goose Bay, Labrador (53º19'N)