Use this web page to find specific data files available from the public ftp file archive of the ESRL Global Monitoring Laboratory. Alternatively, you can check our Data by research program page for specific areas of data that can be downloaded. 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 select specific data files.
| Dataset Number | Site | Category | Name | Type | Frequency | Year | Data | Readme |
|---|---|---|---|---|---|---|---|---|
|
1 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Daily Averages | Multiple | Download | |
|
2 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Hourly Averages | Multiple | Download | |
|
3 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Monthly Averages | Multiple | Download | |
|
4 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Daily Averages | Multiple | Download | |
|
5 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Hourly Averages | Multiple | Download | |
|
6 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Carbon Tetrachloride (CCl4) |
Insitu | Monthly Averages | Multiple | Download | |
|
7 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Daily Averages | Multiple | Download | |
|
8 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Hourly Averages | Multiple | Download | |
|
9 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Monthly Averages | Multiple | Download | |
|
10 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Daily Averages | Multiple | Download | |
|
11 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Hourly Averages | Multiple | Download | |
|
12 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | Methyl Chloroform (CH3CCl3) |
Insitu | Monthly Averages | Multiple | Download | |
|
13 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Daily Averages | Multiple | Download | |
|
14 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Hourly Averages | Multiple | Download | |
|
15 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Monthly Averages | Multiple | Download | |
|
16 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Daily Averages | Multiple | Download | |
|
17 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Hourly Averages | Multiple | Download | |
|
18 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-11 (cfc11) |
Insitu | Monthly Averages | Multiple | Download | |
|
19 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-113 (cfc113) |
Insitu | Daily Averages | Multiple | Download | |
|
20 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-113 (cfc113) |
Insitu | Hourly Averages | Multiple | Download | |
|
21 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-113 (cfc113) |
Insitu | Monthly Averages | Multiple | Download | |
|
22 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Daily Averages | Multiple | Download | |
|
23 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Hourly Averages | Multiple | Download | |
|
24 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Monthly Averages | Multiple | Download | |
|
25 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Daily Averages | Multiple | Download | |
|
26 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Hourly Averages | Multiple | Download | |
|
27 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Halocompounds | CFC-12 (cfc12) |
Insitu | Monthly Averages | Multiple | Download | |
|
28 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloride (ch3cl) |
Insitu | Daily Averages | Multiple | Download | |
|
29 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloride (ch3cl) |
Insitu | Hourly Averages | Multiple | Download | |
|
30 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Methyl Chloride (ch3cl) |
Insitu | Monthly Averages | Multiple | Download | |
|
31 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Halon-1211 (h1211) |
Insitu | Daily Averages | Multiple | Download | |
|
32 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Halon-1211 (h1211) |
Insitu | Hourly Averages | Multiple | Download | |
|
33 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | Halon-1211 (h1211) |
Insitu | Monthly Averages | Multiple | Download | |
|
34 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Daily Averages | Multiple | Download | |
|
35 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Hourly Averages | Multiple | Download | |
|
36 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Monthly Averages | Multiple | Download | |
|
37 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Daily Averages | Multiple | Download | |
|
38 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Hourly Averages | Multiple | Download | |
|
39 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Monthly Averages | Multiple | Download | |
|
40 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Daily Averages | Multiple | Download | |
|
41 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Hourly Averages | Multiple | Download | |
|
42 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Monthly Averages | Multiple | Download | |
|
43 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Daily Averages | Multiple | Download | |
|
44 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Hourly Averages | Multiple | Download | |
|
45 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ RITS GC measurements. |
Greenhouse Gases | Nitrous Oxide (n2o) |
Insitu | Monthly Averages | Multiple | Download | |
|
46 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Sulfur Hexafluoride (sf6) |
Insitu | Daily Averages | Multiple | Download | |
|
47 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Sulfur Hexafluoride (sf6) |
Insitu | Hourly Averages | Multiple | Download | |
|
48 |
Niwot Ridge, Colorado, United States (NWR) Continuous in-situ CATS GC measurements. |
Greenhouse Gases | Sulfur Hexafluoride (sf6) |
Insitu | Monthly Averages | Multiple | Download | |
|
49 |
Niwot Ridge, Colorado, United States (NWR) Continuous measurements of surface ozone. |
Ozone | Ozone (O3) |
Insitu | Hourly Averages | Multiple | Go To Directory | Readme |
|
50 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Acetylene (C2H2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
51 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Ethane (C2H6) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
52 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Propane (C3H8) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
53 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Benzene (C6H6) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
54 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | PFC-14 (CF4) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
55 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | CFC-115 (CClF2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
56 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | CFC-11 (CCl3F (ion 103)) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
57 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | CFC-13 (CClF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
58 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Methelyne Bromide (CH2Br2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
59 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Methyl Chloroform (97) (CH3CCl3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
60 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Chloroform (CHCl3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
61 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | ethylene dichloride (1,2 DCE) (CH2ClCH2Cl) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
62 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Halon-1301 (CF3Br) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
63 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Halon-2402 (CBrF2CBrF2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
64 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HCFC-133a (CH2ClCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
65 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HCFC-22 (CHF2Cl) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
66 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-125 (CHF2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
67 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-134a (CH2FCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
68 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-143a (CH3CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
69 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-152a (CH3CHF2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
70 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-227ea (CF3CHFCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
71 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-236fa (CF3CH2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
72 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | HFC-32 (CH2F2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
73 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | PFC-218 (C3F8) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
74 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Perfluorotriethylamine (PFTEA) ((C2F5)3N) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
75 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Perfluorotripropylamine (PFTPA) ((C3F7)3N) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
76 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Methane (CH4) |
Flask | Discrete | Multiple | Download | Readme |
|
77 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Methane (CH4) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
78 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Methane (CH4) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
79 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | C13/C12 in Methane (d13C (CH4)) |
Flask | Discrete | Multiple | Download | Readme |
|
80 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | C13/C12 in Methane (d13C (CH4)) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
81 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Monoxide (CO) |
Flask | Discrete | Multiple | Download | Readme |
|
82 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Monoxide (CO) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
83 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Monoxide (CO) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
84 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Dioxide (CO2) |
Flask | Discrete | Multiple | Download | Readme |
|
85 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Dioxide (CO2) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
86 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Carbon Dioxide (CO2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
87 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Molecular Hydrogen (H2) |
Flask | Discrete | Multiple | Download | Readme |
|
88 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | Isobutane (i-C4H10) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
89 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | isopentane (i-C5H12) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
90 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Nitrous Oxide (N2O) |
Flask | Discrete | Multiple | Download | Readme |
|
91 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Nitrous Oxide (N2O) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
92 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Nitrous Oxide (N2O) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
93 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | n-Butane (n-C4H10) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
94 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Halocompounds | n-Pentane (n-C5H12) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
95 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Sulfur Hexafluoride (SF6) |
Flask | Discrete | Multiple | Download | Readme |
|
96 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Sulfur Hexafluoride (SF6) |
Flask | Monthly Averages | Multiple | Download | Readme |
|
97 |
Niwot Ridge, Colorado, United States (NWR) Air samples collected in glass flasks. |
Greenhouse Gases | Sulfur Hexafluoride (SF6) |
Surface PFP | Discrete | Multiple | Download | Readme |