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 Greenhouse Gases (18) Halocompounds (18) Meteorology (18) Aerosols (15) Non-Methane Hydrocarbons (6) Ozone (2) Radiation (1)

Parameter name Meteorology (18) Aerosols (15) CFC-11 (3) CFC-113 (3) CFC-12 (3) Carbon Tetrachloride (3) Halon-1211 (3) Methyl Chloroform (3) Nitrous Oxide (3) Sulfur Hexafluoride (3) C13/C12 in Carbon Dioxide (2) C13/C12 in Methane (2) Carbon Dioxide (2) Carbon Monoxide (2) Methane (2) O18/O16 in Carbon Dioxide (2) Ozone (2) Surface Radiation (1) ethane (1) i-butane (1) i-pentane (1) n-butane (1) n-pentane (1) propane (1)

Type Insitu (59) Flask (18) Balloon (1)

Frequency Hourly Averages (23) Monthly Averages (19) Daily Averages (13) Discrete (12) Minute Averages (10) Vertical Profile (1)

Site SUM (78)

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	Site	Category	Name	Type	Frequency	Year	Data
1	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Daily Averages	Multiple
2	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Daily Averages	Multiple
3	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Daily Averages	Multiple
4	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-113 (cfc113)	Insitu	Daily Averages	Multiple
5	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Daily Averages	Multiple
6	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Halon-1211 (h1211)	Insitu	Daily Averages	Multiple
7	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Daily Averages	Multiple
8	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Sulfur Hexafluoride (sf6)	Insitu	Daily Averages	Multiple
9	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Hourly Averages	Multiple
10	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Hourly Averages	Multiple
11	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Hourly Averages	Multiple
12	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-113 (cfc113)	Insitu	Hourly Averages	Multiple
13	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Hourly Averages	Multiple
14	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Halon-1211 (h1211)	Insitu	Hourly Averages	Multiple
15	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Hourly Averages	Multiple
16	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Sulfur Hexafluoride (sf6)	Insitu	Hourly Averages	Multiple
17	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Carbon Tetrachloride (CCl4)	Insitu	Monthly Averages	Multiple
18	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Methyl Chloroform (CH3CCl3)	Insitu	Monthly Averages	Multiple
19	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-11 (cfc11)	Insitu	Monthly Averages	Multiple
20	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-113 (cfc113)	Insitu	Monthly Averages	Multiple
21	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	CFC-12 (cfc12)	Insitu	Monthly Averages	Multiple
22	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Halocompounds	Halon-1211 (h1211)	Insitu	Monthly Averages	Multiple
23	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Nitrous Oxide (n2o)	Insitu	Monthly Averages	Multiple
24	Summit, Greenland (SUM) Continuous in-situ CATS GC measurements.	Greenhouse Gases	Sulfur Hexafluoride (sf6)	Insitu	Monthly Averages	Multiple
25	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2008
26	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2009
27	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2010
28	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2011
29	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2012
30	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2013
31	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2014
32	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2015
33	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Hourly Averages	2016
34	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2008
35	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2009
36	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2010
37	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2011
38	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2012
39	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2013
40	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2014
41	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2015
42	Summit, Greenland (SUM) Continuous In-situ measurements of meteorology	Meteorology	Meteorology (met)	Insitu	Minute Averages	2016
43	Summit, Greenland (SUM) In-situ Daily Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Daily Averages	2011
44	Summit, Greenland (SUM) In-situ Daily Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Daily Averages	2012
45	Summit, Greenland (SUM) In-situ Daily Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Daily Averages	2013
46	Summit, Greenland (SUM) In-situ Daily Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Daily Averages	2014
47	Summit, Greenland (SUM) In-situ Daily Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Daily Averages	2015
48	Summit, Greenland (SUM) In-situ Hourly Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Hourly Averages	2011
49	Summit, Greenland (SUM) In-situ Hourly Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Hourly Averages	2012
50	Summit, Greenland (SUM) In-situ Hourly Averages of aerosol properties measured at 10 meters above ground level	Aerosols	Aerosols	Insitu	Hourly Averages	2013