Use this web page to find specific data files available from the public ftp file archive of the ESRL Global Monitoring Division. Alternatively, you can browse the GMD ftp server. Click on the icons ( or ) under the 'Data' table heading in the dataset description boxes to either download the data file desired, or take you to the appropriate directory on the ftp server, where you can make selections based on date.

Category Aerosols (220) Meteorology (200) Halocompounds (71) Greenhouse Gases (23) Ozone (17)

Parameter name Aerosols (220) Meteorology (200) Ozone (17) CFC-11 (11) CFC-12 (11) Carbon Tetrachloride (11) Methyl Chloroform (11) Nitrous Oxide (11) CFC-113 (6) Halon-1211 (6) Sulfur Hexafluoride (6) HCFC-142b (5) HCFC-22 (5) Methyl Chloride (5) Carbon Dioxide (4) Methane (2)

Type Insitu (531)

Frequency Hourly Averages (531)

Site ARH (1) BAO (1) BAR (1) BER (1) BLD (11) BND (23) BRW (104) LDR (1) MLO (103) NWR (17) PCO (1) SMO (103) SPO (102) SUM (31) THD (27) TIK (1) TUN (1) WKT (1) WVR (1)

Information about site codes can be found here.

  or enter search term: Search

	Site	Category	Name	Type	Frequency	Year	Data
251	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Hourly Averages	Multiple
252	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloride (ch3cl)	Insitu	Hourly Averages	Multiple
253	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Halocompounds	Halon-1211 (h1211)	Insitu	Hourly Averages	Multiple
254	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Halocompounds	HCFC-142b (hcfc142b)	Insitu	Hourly Averages	Multiple
255	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Halocompounds	HCFC-22 (hcfc22)	Insitu	Hourly Averages	Multiple
256	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Hourly Averages	Multiple
257	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Sulfur Hexafluoride (sf6)	Insitu	Hourly Averages	Multiple
258	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Hourly Averages	Multiple
259	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Hourly Averages	Multiple
260	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Hourly Averages	Multiple
261	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Hourly Averages	Multiple
262	Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Hourly Averages	Multiple
263	Niwot Ridge, Colorado, United States (NWR) Continuous measurements of surface ozone.	Ozone	Ozone (O3)	Insitu	Hourly Averages	Multiple
264	Pico, Azores, Portugal (PCO) Continuous measurements of surface ozone.	Ozone	Ozone (O3)	Insitu	Hourly Averages	Multiple
265	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Hourly Averages	Multiple
266	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Hourly Averages	Multiple
267	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Hourly Averages	Multiple
268	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-113 (cfc113)	Insitu	Hourly Averages	Multiple
269	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Hourly Averages	Multiple
270	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloride (ch3cl)	Insitu	Hourly Averages	Multiple
271	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	Halon-1211 (h1211)	Insitu	Hourly Averages	Multiple
272	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	HCFC-142b (hcfc142b)	Insitu	Hourly Averages	Multiple
273	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Halocompounds	HCFC-22 (hcfc22)	Insitu	Hourly Averages	Multiple
274	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Hourly Averages	Multiple
275	Tutuila, American Samoa (SMO) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Sulfur Hexafluoride (sf6)	Insitu	Hourly Averages	Multiple
276	Tutuila, American Samoa (SMO) Continuous in-situ RITS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Hourly Averages	Multiple
277	Tutuila, American Samoa (SMO) Continuous in-situ RITS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Hourly Averages	Multiple
278	Tutuila, American Samoa (SMO) Continuous in-situ RITS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Hourly Averages	Multiple
279	Tutuila, American Samoa (SMO) Continuous in-situ RITS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Hourly Averages	Multiple
280	Tutuila, American Samoa (SMO) Continuous in-situ RITS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Hourly Averages	Multiple
281	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1976
282	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1977
283	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1978
284	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1979
285	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1980
286	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1981
287	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1982
288	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1983
289	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1984
290	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1985
291	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1986
292	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1987
293	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1988
294	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1989
295	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1990
296	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1991
297	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1992
298	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1993
299	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1994
300	Tutuila, American Samoa (SMO) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	1995