Round Robin Comparison Experiment 7 (RR7) was conducted from 2020 through 2026 and involved 51 participants. RR7 was delayed by logistical challenges but has now been closed and the data is available for participants.
Value assignments determined by the CCL (or a designated Round Robin reference lab) for all RR7 cylinders are listed in table 1 as time dependent value assignments. Due to the recent CO scale revision, CO reference values are listed for both WMO X2014A and the new WMO X2025 scales.
Data submitted by participants are shown in table 2 along with the CCL value of the cylinders as of the participants analysis date. No quality control of the submitted data has been done by the CCL. Errors in submission should be brought to the attention of the CCL, although we will not be accepting general revisions and instead encourage participants to use the provided reference values in table 1 to do offline comparison for QA purposes.
Note; O2N2 & CO2 isotopes data are not yet available, we anticipate adding these results soon.
WMO Central Calibration Laboratory Assignments for Round Robin 7 Cylinders Download
| Cylinder | Species | Scale | tzero | coef0 | coef1 | coef2 | unc_c0 | unc_c1 | unc_c2 | sd_resid |
|---|---|---|---|---|---|---|---|---|---|---|
| CA06015 | CH4 | CH4_X2004A | 2,021.5565 | 1,934.5948 | 0.0000 | 0.0000 | 0.1085 | 0.0000 | 0.0000 | 0.0509 |
| CA06015 | CO | CO_X2014A | 2,020.8128 | 109.4033 | 0.0000 | 0.0000 | 0.3644 | 0.0000 | 0.0000 | 0.8993 |
| CA06015 | CO | CO_X2025 | 2,021.0009 | 107.4485 | 0.0000 | 0.0000 | 0.2074 | 0.0000 | 0.0000 | 0.2153 |
| CA06015 | CO2 | CO2_X2019 | 2,020.5632 | 418.4334 | 0.0000 | 0.0000 | 0.0087 | 0.0000 | 0.0000 | 0.0055 |
| CA06015 | CO2C13 | CO2C13_JRAS06 | 2,020.8349 | -9.1235 | 0.0000 | 0.0000 | 0.0066 | 0.0000 | 0.0000 | 0.0074 |
| CA06015 | CO2O18 | CO2O18_JRAS06 | 2,020.8340 | -2.3418 | 0.0000 | 0.0000 | 0.0085 | 0.0000 | 0.0000 | 0.0380 |
| CA06015 | N2O | N2O_X2006A | 2,021.4303 | 331.0344 | 0.0000 | 0.0000 | 0.1128 | 0.0000 | 0.0000 | 0.0173 |
| CA06015 | SF6 | SF6_X2014 | 2,021.5126 | 10.2024 | 0.0000 | 0.0000 | 0.0107 | 0.0000 | 0.0000 | 0.0060 |
| CB12416 | CH4 | CH4_X2004A | 2,020.3344 | 1,789.5499 | 0.0000 | 0.0000 | 0.0875 | 0.0000 | 0.0000 | 0.1183 |
| CB12416 | CO | CO_X2014A | 2,019.8823 | 53.5728 | 1.0091 | 0.0000 | 0.3083 | 0.2325 | 0.0000 | 0.6289 |
| CB12416 | CO | CO_X2025 | 2,020.3406 | 51.5358 | 0.4743 | 0.0000 | 0.1813 | 0.1151 | 0.0000 | 0.3480 |
| CB12416 | CO2 | CO2_X2019 | 2,019.4174 | 403.8554 | 0.0000 | 0.0000 | 0.0063 | 0.0000 | 0.0000 | 0.0130 |
| CB12416 | CO2C13 | CO2C13_JRAS06 | 2,018.9347 | -8.6901 | 0.0000 | 0.0000 | 0.0082 | 0.0000 | 0.0000 | 0.0134 |
| CB12416 | CO2O18 | CO2O18_JRAS06 | 2,018.9229 | -1.2545 | 0.0000 | 0.0000 | 0.0127 | 0.0000 | 0.0000 | 0.0349 |
| CB12416 | N2O | N2O_X2006A | 2,020.5103 | 319.1762 | 0.0000 | 0.0000 | 0.0955 | 0.0000 | 0.0000 | 0.0709 |
| CB12416 | SF6 | SF6_X2014 | 2,021.1364 | 9.1264 | 0.0000 | 0.0000 | 0.0101 | 0.0000 | 0.0000 | 0.0066 |
| CC498772 | CH4 | CH4_X2004A | 2,020.5057 | 1,905.7693 | 0.0000 | 0.0000 | 0.0908 | 0.0000 | 0.0000 | 0.1347 |
| CC498772 | CO | CO_X2014A | 2,020.7043 | 121.4239 | 1.0058 | 0.0000 | 0.2607 | 0.1065 | 0.0000 | 0.2873 |
| CC498772 | CO | CO_X2025 | 2,020.6358 | 119.5913 | 0.4467 | 0.0000 | 0.1835 | 0.0827 | 0.0000 | 0.3311 |
| CC498772 | CO2 | CO2_X2019 | 2,019.1325 | 419.0252 | 0.0000 | 0.0000 | 0.0065 | 0.0000 | 0.0000 | 0.0117 |
| CC498772 | CO2C13 | CO2C13_JRAS06 | 2,018.8091 | -8.7451 | 0.0000 | 0.0000 | 0.0078 | 0.0000 | 0.0000 | 0.0929 |
| CC498772 | CO2O18 | CO2O18_JRAS06 | 2,018.8073 | -1.5810 | 2.5283 | -39.1313 | 0.0151 | 0.5988 | 11.9419 | 0.1326 |
| CC498772 | N2O | N2O_X2006A | 2,023.6251 | 331.1385 | 0.0000 | 0.0000 | 0.0575 | 0.0000 | 0.0000 | 0.2031 |
| CC498772 | SF6 | SF6_X2014 | 2,021.6765 | 9.6351 | 0.0000 | 0.0000 | 0.0098 | 0.0000 | 0.0000 | 0.0035 |
| CC498779 | CH4 | CH4_X2004A | 2,020.8812 | 1,801.5650 | 0.0000 | 0.0000 | 0.0861 | 0.0000 | 0.0000 | 0.0536 |
| CC498779 | CO | CO_X2014A | 2,021.0999 | 53.5873 | 1.0575 | 0.0000 | 0.2732 | 0.1110 | 0.0000 | 0.2766 |
| CC498779 | CO | CO_X2025 | 2,021.1984 | 50.6657 | 0.5354 | 0.0000 | 0.1676 | 0.0711 | 0.0000 | 0.2168 |
| CC498779 | CO2 | CO2_X2019 | 2,019.9874 | 403.7491 | 0.0000 | 0.0000 | 0.0058 | 0.0000 | 0.0000 | 0.0085 |
| CC498779 | CO2C13 | CO2C13_JRAS06 | 2,018.9367 | -8.7196 | 0.0000 | 0.0000 | 0.0077 | 0.0000 | 0.0000 | 0.0101 |
| CC498779 | CO2O18 | CO2O18_JRAS06 | 2,018.9268 | -1.4761 | 0.0000 | 0.0000 | 0.0118 | 0.0000 | 0.0000 | 0.0333 |
| CC498779 | N2O | N2O_X2006A | 2,023.6132 | 315.0985 | 0.0000 | 0.0000 | 0.0579 | 0.0000 | 0.0000 | 0.1278 |
| CC498779 | SF6 | SF6_X2014 | 2,021.3289 | 9.1667 | 0.0000 | 0.0000 | 0.0099 | 0.0000 | 0.0000 | 0.0069 |
| CC498886 | CH4 | CH4_X2004A | 2,019.9812 | 1,903.7639 | 0.0000 | 0.0000 | 0.0861 | 0.0000 | 0.0000 | 0.0680 |
| CC498886 | CO | CO_X2014A | 2,019.5579 | 116.8629 | 1.2263 | 0.0000 | 0.2870 | 0.2056 | 0.0000 | 0.4280 |
| CC498886 | CO | CO_X2025 | 2,020.0828 | 116.0282 | 0.6755 | 0.0000 | 0.1882 | 0.1138 | 0.0000 | 0.3681 |
| CC498886 | CO2 | CO2_X2019 | 2,019.2806 | 419.2566 | 0.0000 | 0.0000 | 0.0069 | 0.0000 | 0.0000 | 0.0202 |
| CC498886 | CO2C13 | CO2C13_JRAS06 | 2,018.8082 | -8.7122 | 0.0000 | 0.0000 | 0.0078 | 0.0000 | 0.0000 | 0.0117 |
| CC498886 | CO2O18 | CO2O18_JRAS06 | 2,018.8063 | -1.4661 | -0.8685 | 0.0000 | 0.0087 | 0.2658 | 0.0000 | 0.0297 |
| CC498886 | N2O | N2O_X2006A | 2,020.6069 | 330.9666 | 0.0000 | 0.0000 | 0.1325 | 0.0000 | 0.0000 | 0.0778 |
| CC498886 | SF6 | SF6_X2014 | 2,021.8128 | 9.6354 | 0.0000 | 0.0000 | 0.0122 | 0.0000 | 0.0000 | 0.0007 |
| CC498889 | CH4 | CH4_X2004A | 2,021.2401 | 1,905.0368 | 0.0000 | 0.0000 | 0.0839 | 0.0000 | 0.0000 | 0.0450 |
| CC498889 | CO | CO_X2014A | 2,020.3939 | 119.5895 | 0.9623 | 0.0000 | 0.2764 | 0.1070 | 0.0000 | 0.3424 |
| CC498889 | CO | CO_X2025 | 2,020.4807 | 118.1013 | 0.4792 | 0.0000 | 0.1879 | 0.0825 | 0.0000 | 0.3347 |
| CC498889 | CO2 | CO2_X2019 | 2,020.0036 | 418.2105 | 0.0000 | 0.0000 | 0.0058 | 0.0000 | 0.0000 | 0.0128 |
| CC498889 | CO2C13 | CO2C13_JRAS06 | 2,018.8083 | -8.7131 | 0.0000 | 0.0000 | 0.0078 | 0.0000 | 0.0000 | 0.0209 |
| CC498889 | CO2O18 | CO2O18_JRAS06 | 2,018.8064 | -1.7336 | 0.0000 | 0.0000 | 0.0087 | 0.0000 | 0.0000 | 0.0479 |
| CC498889 | N2O | N2O_X2006A | 2,025.7048 | 330.8752 | 0.0000 | 0.0000 | 0.0533 | 0.0000 | 0.0000 | 0.0541 |
| CC498889 | SF6 | SF6_X2014 | 2,020.3631 | 9.6404 | 0.0000 | 0.0000 | 0.0158 | 0.0000 | 0.0000 | 0.0078 |
| CC498990 | CH4 | CH4_X2004A | 2,020.4933 | 1,794.8190 | 0.0000 | 0.0000 | 0.0854 | 0.0000 | 0.0000 | 0.0990 |
| CC498990 | CO | CO_X2014A | 2,019.9470 | 63.3814 | 1.0562 | 0.0000 | 0.3057 | 0.2098 | 0.0000 | 0.4681 |
| CC498990 | CO | CO_X2025 | 2,020.3207 | 61.4077 | 0.5350 | 0.0000 | 0.1841 | 0.1128 | 0.0000 | 0.3268 |
| CC498990 | CO2 | CO2_X2019 | 2,019.4823 | 397.9347 | 0.0000 | 0.0000 | 0.0063 | 0.0000 | 0.0000 | 0.0097 |
| CC498990 | CO2C13 | CO2C13_JRAS06 | 2,018.9346 | -8.5166 | 0.0000 | 0.0000 | 0.0082 | 0.0000 | 0.0000 | 0.0111 |
| CC498990 | CO2O18 | CO2O18_JRAS06 | 2,018.9228 | -1.3129 | 0.0000 | 0.0000 | 0.0127 | 0.0000 | 0.0000 | 0.0289 |
| CC498990 | N2O | N2O_X2006A | 2,020.5775 | 328.5833 | 0.0000 | 0.0000 | 0.1215 | 0.0000 | 0.0000 | 0.0071 |
| CC498990 | SF6 | SF6_X2014 | 2,021.3905 | 9.1193 | 0.0000 | 0.0000 | 0.0113 | 0.0000 | 0.0000 | 0.0064 |
| CC506414 | CH4 | CH4_X2004A | 2,021.6349 | 1,810.3875 | 0.0000 | 0.0000 | 0.0795 | 0.0000 | 0.0000 | 0.1096 |
| CC506414 | CO | CO_X2014A | 2,020.7495 | 55.5792 | 1.0863 | 0.0000 | 0.2881 | 0.1119 | 0.0000 | 0.5088 |
| CC506414 | CO | CO_X2025 | 2,020.7085 | 52.8543 | 0.5511 | 0.0000 | 0.1778 | 0.0807 | 0.0000 | 0.4169 |
| CC506414 | CO2 | CO2_X2019 | 2,020.4669 | 405.2776 | 0.0000 | 0.0000 | 0.0060 | 0.0000 | 0.0000 | 0.0123 |
| CC506414 | CO2C13 | CO2C13_JRAS06 | 2,018.9366 | -8.7137 | 0.0000 | 0.0000 | 0.0077 | 0.0000 | 0.0000 | 0.0089 |
| CC506414 | CO2O18 | CO2O18_JRAS06 | 2,018.9267 | -1.4910 | 0.0000 | 0.0000 | 0.0118 | 0.0000 | 0.0000 | 0.0360 |
| CC506414 | N2O | N2O_X2006A | 2,025.3208 | 319.9601 | 0.0000 | 0.0000 | 0.0505 | 0.0000 | 0.0000 | 0.0509 |
| CC506414 | SF6 | SF6_X2014 | 2,020.4882 | 9.2336 | 0.0000 | 0.0000 | 0.0100 | 0.0000 | 0.0000 | 0.0068 |
| CC506496 | CH4 | CH4_X2004A | 2,020.7348 | 1,791.1957 | 0.0000 | 0.0000 | 0.0901 | 0.0000 | 0.0000 | 0.0697 |
| CC506496 | CO | CO_X2014A | 2,021.0353 | 52.1052 | 1.0298 | 0.0000 | 0.2711 | 0.1147 | 0.0000 | 0.3829 |
| CC506496 | CO | CO_X2025 | 2,021.0195 | 49.1910 | 0.5241 | 0.0000 | 0.1696 | 0.0764 | 0.0000 | 0.3025 |
| CC506496 | CO2 | CO2_X2019 | 2,019.5181 | 402.7184 | -0.0156 | 0.0000 | 0.0068 | 0.0051 | 0.0000 | 0.0176 |
| CC506496 | CO2C13 | CO2C13_JRAS06 | 2,018.9365 | -8.6510 | 0.0000 | 0.0000 | 0.0077 | 0.0000 | 0.0000 | 0.0115 |
| CC506496 | CO2O18 | CO2O18_JRAS06 | 2,018.9265 | -1.4296 | 0.0000 | 0.0000 | 0.0118 | 0.0000 | 0.0000 | 0.0245 |
| CC506496 | N2O | N2O_X2006A | 2,023.6457 | 319.0716 | 0.0000 | 0.0000 | 0.0565 | 0.0000 | 0.0000 | 0.1370 |
| CC506496 | SF6 | SF6_X2014 | 2,021.1831 | 9.1529 | 0.0000 | 0.0000 | 0.0097 | 0.0000 | 0.0000 | 0.0040 |
| CC718421 | CH4 | CH4_X2004A | 2,021.7570 | 1,942.8561 | 0.0000 | 0.0000 | 0.1017 | 0.0000 | 0.0000 | 0.0611 |
| CC718421 | CO | CO_X2014A | 2,022.0627 | 114.2194 | 1.4324 | 0.0000 | 0.3067 | 0.1474 | 0.0000 | 0.2831 |
| CC718421 | CO | CO_X2025 | 2,021.6805 | 111.2220 | 0.8614 | 0.0000 | 0.1938 | 0.1015 | 0.0000 | 0.3264 |
| CC718421 | CO2 | CO2_X2019 | 2,021.2770 | 417.0471 | 0.0000 | 0.0000 | 0.0076 | 0.0000 | 0.0000 | 0.0091 |
| CC718421 | CO2C13 | CO2C13_JRAS06 | 2,020.8349 | -10.2188 | 0.0000 | 0.0000 | 0.0066 | 0.0000 | 0.0000 | 0.0136 |
| CC718421 | CO2O18 | CO2O18_JRAS06 | 2,020.8369 | -4.2378 | 0.0000 | 0.0000 | 0.0090 | 0.0000 | 0.0000 | 0.0260 |
| CC718421 | N2O | N2O_X2006A | 2,024.0527 | 334.7702 | 0.0000 | 0.0000 | 0.0597 | 0.0000 | 0.0000 | 0.0746 |
| CC718421 | SF6 | SF6_X2014 | 2,021.8356 | 11.0538 | 0.0000 | 0.0000 | 0.0127 | 0.0000 | 0.0000 | 0.0031 |
| D232735 | H2 | H2_X2009 | 2,019.0575 | 568.2200 | 0.4520 | 0.0000 | 0.1000 | 0.0600 | 0.0000 | 0.0000 |
| D232748 | H2 | H2_X2009 | 2,019.0575 | 525.6200 | 0.3300 | 0.0000 | 0.1000 | 0.0600 | 0.0000 | 0.0000 |
The value and scale transfer uncertainty of the standard on date Da (as a decimal year) are:
Drift Correction Formula:
Uncertainty Formula:
Where dt = Da - tzero.
Time zero (tzero) is set to the weighted mean date to allow the uncertainties of the coefficients to be easily approximated as a function of time without considering the correlations.
Decimal Year Formula:
To convert a specific date and time into a decimal year (e.g., 2023.497), use the ratio of elapsed seconds:
- Selapsed = Seconds passed from Jan 1, 00:00:00 to target time.
- Stotal = Total seconds in that specific year.
Example: July 1 at 12:00 PM in a non-leap year is roughly 15,681,600 seconds into a 31,536,000 second year, resulting in 2023.4972.
WMO Round Robin 7 Participant Data Download
| Lab | Cylinder | Species | Measured Date | Method | Instrument | Scale | Value | Unc | N | CCL Scale | CCL Value | CCL Unc | CCL - Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AEMET | CB12416 | ch4 | 2022-10-13 | CRDS | Picarro G2401 | WMO-CH4-X2004A | 1,789.48 | 0.01 | 2 | CH4_X2004A | 1,789.55 | 0.15 | 0.07 |
| AEMET | CC498886 | ch4 | 2022-10-13 | CRDS | Picarro G2401 | WMO-CH4-X2004A | 1,903.70 | 0.11 | 2 | CH4_X2004A | 1,903.76 | 0.11 | 0.06 |
| AEMET | CC498886 | co | 2022-09-30 | OA-ICOS | LGR 913-0015 | WMO-CO-X2014A | 120.33 | 0.00 | 2 | CO_X2014A | 120.77 | 0.83 | 0.44 |
| AEMET | CB12416 | co | 2022-09-30 | OA-ICOS | LGR 913-0015 | WMO-CO-X2014A | 57.36 | 0.01 | 2 | CO_X2014A | 56.46 | 0.97 | -0.90 |
| AEMET | CB12416 | co2 | 2022-10-13 | CRDS | Picarro G2401 | WMO-CO2-X2019 | 403.81 | 0.00 | 2 | CO2_X2019 | 403.86 | 0.01 | 0.04 |
| AEMET | CC498886 | co2 | 2022-10-13 | CRDS | Picarro G2401 | WMO-CO2-X2019 | 419.20 | 0.01 | 2 | CO2_X2019 | 419.26 | 0.02 | 0.05 |
| AEMET | CC498886 | n2o | 2022-09-30 | OA-ICOS | LGR 913-0015 | WMO-N2O-X2006A | 331.08 | 0.05 | 2 | N2O_X2006A | 330.97 | 0.15 | -0.12 |
| AEMET | CB12416 | n2o | 2022-09-30 | OA-ICOS | LGR 913-0015 | WMO-N2O-X2006A | 319.30 | 0.05 | 2 | N2O_X2006A | 319.18 | 0.12 | -0.13 |
| AEMET | CC498886 | sf6 | 2022-10-11 | GC-ECD | Agilent 8890 GC | WMO-SF6-X2014 | 9.65 | 0.01 | 3 | SF6_X2014 | 9.64 | 0.01 | -0.01 |
| AEMET | CB12416 | sf6 | 2022-10-11 | GC-ECD | Agilent 8890 GC | WMO-SF6-X2014 | 9.14 | 0.01 | 3 | SF6_X2014 | 9.13 | 0.01 | -0.01 |
| AIST | CC718421 | ch4 | 2021-11-04 | GC-FID | AIST-CH4 | 1,946.70 | 2.00 | 16 | CH4_X2004A | 1,942.86 | 0.12 | -3.84 | |
| AIST | CC498779 | ch4 | 2021-11-04 | GC-FID | AIST-CH4 | 1,805.50 | 2.00 | 15 | CH4_X2004A | 1,801.57 | 0.10 | -3.93 | |
| AIST | CC498779 | co2 | 2021-12-17 | NDIR | TU-2010 | 403.66 | 0.06 | 25 | CO2_X2019 | 403.75 | 0.01 | 0.09 | |
| AIST | CC718421 | co2 | 2021-12-17 | NDIR | TU-2010 | 416.99 | 0.06 | 24 | CO2_X2019 | 417.05 | 0.01 | 0.06 | |
| AMERIFLUX | CC506496 | ch4 | 2023-10-13 | CRDS | CFADS2307 | WMO-CH4-X2004A | 1,791.10 | 0.10 | 6 | CH4_X2004A | 1,791.20 | 0.11 | 0.10 |
| AMERIFLUX | CC498772 | ch4 | 2023-10-13 | CRDS | CFADS2307 | WMO-CH4-X2004A | 1,905.70 | 0.10 | 6 | CH4_X2004A | 1,905.77 | 0.16 | 0.07 |
| AMERIFLUX | CC506496 | co | 2023-10-13 | CRDS | JKADS5084 | WMO-CO-X2014A | 51.40 | 0.10 | 6 | CO_X2014A | 54.93 | 0.57 | 3.53 |
| AMERIFLUX | CC498772 | co | 2023-10-13 | CRDS | JKADS5084 | WMO-CO-X2014A | 121.30 | 0.10 | 6 | CO_X2014A | 124.52 | 0.51 | 3.22 |
| AMERIFLUX | CC498772 | co2 | 2023-10-13 | CRDS | CFADS2307 | WMO-CO2-X2019 | 419.02 | 0.01 | 6 | CO2_X2019 | 419.03 | 0.01 | 0.01 |
| AMERIFLUX | CC506496 | co2 | 2023-10-13 | CRDS | CFADS2307 | WMO-CO2-X2019 | 402.67 | 0.01 | 6 | CO2_X2019 | 402.65 | 0.03 | -0.02 |
| AMERIFLUX | CC498772 | n2o | 2023-10-13 | FTIR | JKADS5084 | WMO-N2O-X2006A | 331.07 | 0.09 | 6 | N2O_X2006A | 331.14 | 0.21 | 0.07 |
| AMERIFLUX | CC506496 | n2o | 2023-10-13 | FTIR | JKADS5084 | WMO-N2O-X2006A | 318.87 | 0.13 | 6 | N2O_X2006A | 319.07 | 0.15 | 0.20 |
| ATOMKI | CC498886 | ch4 | 2021-12-07 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,903.80 | 0.10 | 10 | CH4_X2004A | 1,903.76 | 0.11 | -0.04 |
| ATOMKI | CB12416 | ch4 | 2021-12-07 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,789.50 | 0.10 | 10 | CH4_X2004A | 1,789.55 | 0.15 | 0.05 |
| ATOMKI | CB12416 | co2 | 2021-12-07 | CRDS | Picarro G2301 | WMO-CO2-X2019 | 403.87 | 0.01 | 10 | CO2_X2019 | 403.86 | 0.01 | -0.01 |
| ATOMKI | CC498886 | co2 | 2021-12-07 | CRDS | Picarro G2301 | WMO-CO2-X2019 | 419.27 | 0.01 | 10 | CO2_X2019 | 419.26 | 0.02 | -0.01 |
| BLG | CC498990 | co2 | 2023-09-22 | NDIR | Licor LI7000 | WMO-CO2-X2019 | 398.07 | 0.02 | 5 | CO2_X2019 | 397.93 | 0.01 | -0.14 |
| BLG | CA06015 | co2 | 2023-09-22 | NDIR | Licor LI7000 | WMO-CO2-X2019 | 418.43 | 0.03 | 5 | CO2_X2019 | 418.43 | 0.01 | 0.00 |
| CMA | CC718421 | ch4 | 2022-09-15 | GC-FID | AIST-CH4 | 1,942.90 | 0.20 | -999 | CH4_X2004A | 1,942.86 | 0.12 | -0.04 | |
| CMA | CC498779 | ch4 | 2022-09-15 | GC-FID | AIST-CH4 | 1,801.60 | 0.20 | -999 | CH4_X2004A | 1,801.57 | 0.10 | -0.03 | |
| CMA | CC718421 | co | 2022-09-10 | GC-RGA | CSIRO94 | 106.70 | 1.00 | -999 | CO_X2014A | 115.12 | 0.43 | 8.42 | |
| CMA | CC498779 | co | 2022-09-10 | GC-RGA | CSIRO94 | 48.40 | 1.00 | -999 | CO_X2014A | 55.27 | 0.43 | 6.87 | |
| CMA | CC718421 | co2 | 2022-09-15 | NDIR | AIST-CO2 | 417.04 | 0.02 | -999 | CO2_X2019 | 417.05 | 0.01 | 0.01 | |
| CMA | CC498779 | co2 | 2022-09-16 | NDIR | AIST-CO2 | 403.72 | 0.02 | -999 | CO2_X2019 | 403.75 | 0.01 | 0.03 | |
| CMA | CC498779 | n2o | 2022-08-20 | GC-ECD | KRISS | 314.96 | 0.10 | -999 | N2O_X2006A | 315.10 | 0.14 | 0.14 | |
| CMA | CC718421 | n2o | 2022-08-20 | GC-ECD | KRISS | 334.77 | 0.10 | -999 | N2O_X2006A | 334.77 | 0.10 | 0.00 | |
| CMA | CC718421 | sf6 | 2022-08-20 | GC-ECD | KRISS | 9.17 | 0.01 | -999 | SF6_X2014 | 11.05 | 0.01 | 1.88 | |
| CMA | CC498779 | sf6 | 2022-08-20 | GC-ECD | KRISS | 11.05 | 0.01 | -999 | SF6_X2014 | 9.17 | 0.01 | -1.88 | |
| CNR-ISAC | CC498889 | ch4 | 2025-03-12 | CRDS | 2871-CFKADS2269 | WMO-CH4-X2004A | 1,904.83 | 0.02 | -999 | CH4_X2004A | 1,905.04 | 0.10 | 0.21 |
| CNR-ISAC | CC506414 | ch4 | 2025-03-12 | CRDS | 2871-CFKADS2269 | WMO-CH4-X2004A | 1,810.18 | 0.03 | -999 | CH4_X2004A | 1,810.39 | 0.14 | 0.21 |
| CNR-ISAC | CC498889 | co | 2025-03-12 | CRDS | 5121-PPU-JKADS5129 | WMO-CO-X2014A | 123.52 | 0.02 | -999 | CO_X2014A | 124.21 | 0.68 | 0.69 |
| CNR-ISAC | CC506414 | co | 2025-03-12 | CRDS | 5121-PPU-JKADS5129 | WMO-CO-X2014A | 60.86 | 0.03 | -999 | CO_X2014A | 60.40 | 0.77 | -0.46 |
| CNR-ISAC | CC498889 | co2 | 2025-03-12 | CRDS | 2871-CFKADS2269 | WMO-CO2-X2019 | 418.22 | 0.00 | -999 | CO2_X2019 | 418.21 | 0.01 | -0.01 |
| CNR-ISAC | CC506414 | co2 | 2025-03-12 | CRDS | 2871-CFKADS2269 | WMO-CO2-X2019 | 405.29 | 0.00 | -999 | CO2_X2019 | 405.28 | 0.01 | -0.01 |
| CNR-ISAC | CC506414 | n2o | 2025-03-12 | GC-ECD | 5121-PPU-JKADS5129 | WMO-N2O-X2006A | 320.07 | 0.02 | -999 | N2O_X2006A | 319.96 | 0.07 | -0.11 |
| CNR-ISAC | CC498889 | n2o | 2025-03-12 | GC-ECD | 5121-PPU-JKADS5129 | WMO-N2O-X2006A | 330.94 | 0.03 | -999 | N2O_X2006A | 330.88 | 0.08 | -0.06 |
| CSIRO | CC498779 | ch4 | 2023-06-02 | GC-FID | Carle Series 400 | WMO-CH4-X2004A | 1,802.30 | 0.30 | 189 | CH4_X2004A | 1,801.57 | 0.10 | -0.73 |
| CSIRO | CC718421 | ch4 | 2023-05-29 | GC-FID | Carle Series 400 | WMO-CH4-X2004A | 1,943.42 | 0.30 | 129 | CH4_X2004A | 1,942.86 | 0.12 | -0.56 |
| CSIRO | CC498779 | co | 2023-06-02 | GC-RGA | RGA-3 Trace Analytical | WMO-CO-X2014A | 54.97 | 0.30 | 94 | CO_X2014A | 56.04 | 0.47 | 1.07 |
| CSIRO | CC718421 | co | 2023-05-29 | GC-RGA | Trace Analytical RGA3 | WMO-CO-X2014A | 116.73 | 0.30 | 92 | CO_X2014A | 116.14 | 0.46 | -0.59 |
| CSIRO | CC718421 | co2 | 2023-05-29 | GC-FID | Carle Series 400 | WMO-CO2-X2019 | 417.03 | 0.04 | 124 | CO2_X2019 | 417.05 | 0.01 | 0.02 |
| CSIRO | CC498779 | co2 | 2023-06-02 | GC-FID | Carle Series 400 | WMO-CO2-X2019 | 403.75 | 0.04 | 204 | CO2_X2019 | 403.75 | 0.01 | 0.00 |
| CSIRO | D232735 | h2 | 2023-01-04 | GC-RGA | MPI 2009 | 569.64 | 0.30 | 62 | H2_X2009 | 570.01 | 0.26 | 0.37 | |
| CSIRO | D232748 | h2 | 2022-12-08 | GC-RGA | MPI 2009 | 526.70 | 0.30 | 57 | H2_X2009 | 526.90 | 0.25 | 0.20 | |
| CSIRO | CC498779 | n2o | 2023-05-14 | GC-ECD | HP7890A | WMO-N2O-X2006A | 315.05 | 0.08 | 69 | N2O_X2006A | 315.10 | 0.14 | 0.05 |
| CSIRO | CC718421 | n2o | 2023-05-14 | GC-ECD | HP7890A | WMO-N2O-X2006A | 334.69 | 0.07 | 67 | N2O_X2006A | 334.77 | 0.10 | 0.08 |
| EMPA | CC718421 | ch4 | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CH4-X2004A | 1,942.99 | 0.07 | 4 | CH4_X2004A | 1,942.86 | 0.12 | -0.13 |
| EMPA | CC498779 | ch4 | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CH4-X2004A | 1,801.70 | 0.10 | 4 | CH4_X2004A | 1,801.57 | 0.10 | -0.13 |
| EMPA | CC718421 | co | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CO-X2014A | 113.41 | 1.46 | 4 | CO_X2014A | 116.87 | 0.50 | 3.46 |
| EMPA | CC498779 | co | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CO-X2014A | 51.91 | 0.34 | 4 | CO_X2014A | 56.56 | 0.50 | 4.65 |
| EMPA | CC498779 | co2 | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CO2-X2019 | 403.75 | 0.02 | 4 | CO2_X2019 | 403.75 | 0.01 | 0.00 |
| EMPA | CC718421 | co2 | 2023-11-30 | CRDS | Picarro G2401 CFKADS2133 | WMO-CO2-X2019 | 417.09 | 0.03 | 4 | CO2_X2019 | 417.05 | 0.01 | -0.04 |
| EMPA | CC718421 | n2o | 2023-11-30 | OA-ICOS | Picarro G5310 JKADS5106 | WMO-N2O-X2006A | 334.75 | 0.02 | 3 | N2O_X2006A | 334.77 | 0.10 | 0.02 |
| ENEA | CC506414 | ch4 | 2025-11-04 | WMO-CH4-X2004A | 1,810.07 | 0.04 | 5 | CH4_X2004A | 1,810.39 | 0.14 | 0.32 | ||
| ENEA | CC498889 | ch4 | 2025-11-03 | WMO-CH4-X2004A | 1,904.69 | 0.07 | 5 | CH4_X2004A | 1,905.04 | 0.10 | 0.35 | ||
| ENEA | CC498889 | co | 2025-11-03 | WMO-CO-X2014A | 123.96 | 0.26 | 5 | CO_X2014A | 124.83 | 0.73 | 0.87 | ||
| ENEA | CC506414 | co | 2025-11-04 | WMO-CO-X2014A | 61.08 | 0.36 | 5 | CO_X2014A | 61.11 | 0.82 | 0.03 | ||
| ENEA | CC498889 | co2 | 2025-11-03 | WMO-CO2-X2019 | 418.17 | 0.01 | 5 | CO2_X2019 | 418.21 | 0.01 | 0.04 | ||
| ENEA | CC506414 | co2 | 2025-11-04 | WMO-CO2-X2019 | 405.23 | 0.01 | 5 | CO2_X2019 | 405.28 | 0.01 | 0.05 | ||
| FMI | CB12416 | ch4 | 2022-02-09 | CRDS | Picarro G2401 CFKADS2187 | WMO-CH4-X2004A | 1,789.64 | 0.10 | 4 | CH4_X2004A | 1,789.55 | 0.15 | -0.09 |
| FMI | CC498886 | ch4 | 2022-02-16 | CRDS | Picarro G2401 CFKADS2187 | WMO-CH4-X2004A | 1,903.93 | 0.11 | 4 | CH4_X2004A | 1,903.76 | 0.11 | -0.17 |
| FMI | CB12416 | co | 2022-02-16 | CRDS | Picarro G5310 JKADS5105 | WMO-CO-X2014A | 57.23 | 0.02 | 4 | CO_X2014A | 55.84 | 0.87 | -1.39 |
| FMI | CC498886 | co | 2022-02-16 | CRDS | Picarro G5310 JKADS5105 | WMO-CO-X2014A | 120.55 | 0.01 | 4 | CO_X2014A | 120.01 | 0.74 | -0.54 |
| FMI | CC498886 | co2 | 2022-02-16 | CRDS | Picarro G2401 CFKADS2187 | WMO-CO2-X2019 | 419.23 | 0.01 | 4 | CO2_X2019 | 419.26 | 0.02 | 0.03 |
| FMI | CB12416 | co2 | 2022-02-16 | CRDS | Picarro G2401 CFKADS2187 | WMO-CO2-X2019 | 403.85 | 0.01 | 4 | CO2_X2019 | 403.86 | 0.01 | 0.01 |
| FMI | CC498886 | n2o | 2022-02-16 | OA-ICOS | Picarro G5310 JKADS5105 | WMO-N2O-X2006A | 331.03 | 0.01 | 4 | N2O_X2006A | 330.97 | 0.15 | -0.06 |
| FMI | CB12416 | n2o | 2022-02-16 | OA-ICOS | Picarro G5310 JKADS5105 | WMO-N2O-X2006A | 319.23 | 0.01 | 4 | N2O_X2006A | 319.18 | 0.12 | -0.05 |
| IAFMC | CC498889 | ch4 | 2025-05-07 | CRDS | WMO-CH4-X2004 | 1,905.10 | 0.40 | -999 | CH4_X2004A | 1,905.04 | 0.10 | -0.06 | |
| IAFMC | CC506414 | ch4 | 2025-05-07 | CRDS | WMO-CH4-X2004 | 1,810.31 | 0.60 | -999 | CH4_X2004A | 1,810.39 | 0.14 | 0.08 | |
| IAFMC | CC498889 | co2 | 2025-05-07 | CRDS | WMO-CO2-X2019 | 418.23 | 0.07 | -999 | CO2_X2019 | 418.21 | 0.01 | -0.02 | |
| IAFMC | CC506414 | co2 | 2025-05-07 | CRDS | WMO-CO2-X2019 | 405.30 | 0.09 | -999 | CO2_X2019 | 405.28 | 0.01 | -0.02 | |
| ICOS | CC498779 | ch4 | 2024-04-26 | CRDS | Picarro G2301 2696-CFADS2461 | WMO-CH4-X2004A | 1,801.55 | 0.60 | 5 | CH4_X2004A | 1,801.57 | 0.10 | 0.02 |
| ICOS | CC718421 | ch4 | 2024-04-26 | CRDS | Picarro G2301 2696-CFADS2461 | WMO-CH4-X2004A | 1,942.89 | 0.60 | 5 | CH4_X2004A | 1,942.86 | 0.12 | -0.03 |
| ICOS | CC718421 | co | 2024-04-29 | OA-ICOS | LGR N2O/CO-30-EP 913-0015-1000 | WMO-CO-X2014A | 116.07 | 0.70 | 4 | CO_X2014A | 117.46 | 0.53 | 1.39 |
| ICOS | CC498779 | co | 2024-04-29 | OA-ICOS | LGR N2O/CO-30-EP 913-0015-1000 | WMO-CO-X2014A | 57.45 | 0.70 | 4 | CO_X2014A | 57.00 | 0.53 | -0.45 |
| ICOS | CC718421 | co2 | 2024-04-26 | CRDS | Picarro G2301 2696-CFADS2461 | WMO-CO2-X2019 | 417.07 | 0.02 | 5 | CO2_X2019 | 417.05 | 0.01 | -0.02 |
| ICOS | CC498779 | co2 | 2024-04-26 | CRDS | Picarro G2301 2696-CFADS2461 | WMO-CO2-X2019 | 403.76 | 0.02 | 5 | CO2_X2019 | 403.75 | 0.01 | -0.01 |
| ICOS | D232748 | h2 | 2022-04-06 | GC-PDD | Agilent 7890 | MPI 2009 | 526.60 | 1.00 | 15 | H2_X2009 | 526.68 | 0.22 | 0.08 |
| ICOS | D232735 | h2 | 2022-04-07 | GC-PDD | Agilent 7890 | MPI 2009 | 570.00 | 1.00 | 15 | H2_X2009 | 569.67 | 0.22 | -0.33 |
| ICOS | CC718421 | n2o | 2024-04-29 | OA-ICOS | LGR N2O/CO-30-EP 913-0015-1000 | WMO-N2O-X2006A | 334.86 | 0.12 | 4 | N2O_X2006A | 334.77 | 0.10 | -0.09 |
| ICOS | CC498779 | n2o | 2024-04-29 | OA-ICOS | LGR N2O/CO-30-EP 913-0015-1000 | WMO-N2O-X2006A | 314.98 | 0.12 | 4 | N2O_X2006A | 315.10 | 0.14 | 0.11 |
| ICOS | CC718421 | sf6 | 2024-05-13 | GC-ECD | Agilent 7890 | WMO-SF6-X2014 | 11.06 | 0.01 | 15 | SF6_X2014 | 11.05 | 0.01 | 0.00 |
| ICOS | CC498779 | sf6 | 2024-05-13 | GC-ECD | Agilent 7890 | WMO-SF6-X2014 | 9.16 | 0.01 | 15 | SF6_X2014 | 9.17 | 0.01 | 0.01 |
| INPE | CC498889 | ch4 | 2021-11-26 | GC-FID | HP 6890N GC-FID | WMO-CH4-X2004A | 1,903.97 | 1.52 | 60 | CH4_X2004A | 1,905.04 | 0.10 | 1.07 |
| INPE | CC506414 | ch4 | 2021-11-25 | GC-FID | HP 6890N GC-FID | WMO-CH4-X2004A | 1,811.38 | 1.04 | 60 | CH4_X2004A | 1,810.39 | 0.14 | -0.99 |
| INPE | CC506414 | co | 2021-11-25 | GC-RGA | Model: Peak Performer, PP1 | WMO-CO-X2014A | 56.11 | 0.19 | 60 | CO_X2014A | 56.83 | 0.60 | 0.72 |
| INPE | CC498889 | co | 2021-11-26 | GC-RGA | Model: Peak Performer, PP1 | WMO-CO-X2014A | 118.26 | 0.51 | 60 | CO_X2014A | 121.04 | 0.47 | 2.78 |
| INPE | CC506414 | co2 | 2021-11-25 | NDIR | WMO-CO2-X2007 | 405.04 | 0.05 | 60 | CO2_X2019 | 405.28 | 0.01 | 0.24 | |
| INPE | CC498889 | co2 | 2021-11-26 | NDIR | Licor-7000 | WMO-CO2-X2007 | 417.89 | 0.07 | 60 | CO2_X2019 | 418.21 | 0.01 | 0.32 |
| INPE | CC498889 | n2o | 2021-11-26 | GC-ECD | HP 6890N GC-µECD | WMO-N2O-X2006A | 330.76 | 0.21 | 60 | N2O_X2006A | 330.88 | 0.08 | 0.12 |
| INPE | CC506414 | n2o | 2021-11-25 | GC-ECD | HP 6890N GC-µECD | WMO-N2O-X2006A | 319.79 | 0.24 | 60 | N2O_X2006A | 319.96 | 0.07 | 0.17 |
| INPE | CC506414 | sf6 | 2021-11-25 | GC-ECD | HP 6890N GC-µECD | WMO-SF6-X2014 | 9.20 | 0.05 | 60 | SF6_X2014 | 9.23 | 0.01 | 0.03 |
| INPE | CC498889 | sf6 | 2021-11-26 | GC-ECD | HP 6890N GC-µECD | WMO-SF6-X2014 | 9.59 | 0.07 | 60 | SF6_X2014 | 9.64 | 0.02 | 0.05 |
| JMA | CC718421 | ch4 | 2021-10-11 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,942.82 | 0.09 | 5 | CH4_X2004A | 1,942.86 | 0.12 | 0.04 |
| JMA | CC498779 | ch4 | 2021-10-11 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,801.71 | 0.09 | 5 | CH4_X2004A | 1,801.57 | 0.10 | -0.14 |
| JMA | CC718421 | co | 2021-09-28 | GC-RGD | TRA-1 (Round Science Inc.) | WMO-CO-X2014A | 108.20 | 1.90 | 10 | CO_X2014A | 113.76 | 0.42 | 5.56 |
| JMA | CC498779 | co | 2021-09-28 | GC-RGD | TRA-1 (Round Science Inc.) | WMO-CO-X2014A | 59.40 | 1.90 | 10 | CO_X2014A | 54.26 | 0.40 | -5.14 |
| JMA | CC718421 | co2 | 2021-10-05 | CRDS | LGR CCIA-48-EP | WMO-CO2-X2019 | 417.01 | 0.02 | 9 | CO2_X2019 | 417.05 | 0.01 | 0.04 |
| JMA | CC498779 | co2 | 2021-10-05 | CRDS | LGR CCIA-48-EP | WMO-CO2-X2019 | 403.68 | 0.02 | 9 | CO2_X2019 | 403.75 | 0.01 | 0.06 |
| JMA | CC498779 | n2o | 2021-10-14 | GC-ECD | GC-2014 (SHIMADZU) | WMO-N2O-X2006A | 315.97 | 0.22 | 10 | N2O_X2006A | 315.10 | 0.14 | -0.87 |
| JMA | CC718421 | n2o | 2021-10-14 | GC-ECD | GC-2014 (SHIMADZU) | WMO-N2O-X2006A | 335.43 | 0.22 | 10 | N2O_X2006A | 334.77 | 0.10 | -0.66 |
| KMA | CC498772 | ch4 | 2024-01-03 | CRDS | PICARRO G2401 | WMO-CH4-X2004A | 1,905.40 | 0.20 | 4 | CH4_X2004A | 1,905.77 | 0.16 | 0.37 |
| KMA | CC506496 | ch4 | 2024-01-03 | CRDS | PICARRO G2401 | WMO-CH4-X2004A | 1,791.00 | 0.20 | 4 | CH4_X2004A | 1,791.20 | 0.11 | 0.20 |
| KMA | CC498772 | co2 | 2024-01-03 | CRDS | PICARRO G2401 | WMO-CO2-X2019 | 418.99 | 0.01 | 4 | CO2_X2019 | 419.03 | 0.01 | 0.04 |
| KMA | CC506496 | co2 | 2024-01-03 | CRDS | PICARRO G2401 | WMO-CO2-X2019 | 402.65 | 0.01 | 4 | CO2_X2019 | 402.65 | 0.03 | 0.00 |
| KMA | CC506496 | n2o | 2024-01-04 | OA-ICOS | LGR | WMO-N2O-X2006A | 319.14 | 0.10 | 3 | N2O_X2006A | 319.07 | 0.15 | -0.07 |
| KMA | CC498772 | n2o | 2024-01-04 | OA-ICOS | LGR | WMO-N2O-X2006A | 331.13 | 0.10 | 3 | N2O_X2006A | 331.14 | 0.21 | 0.01 |
| KMA | CC506496 | sf6 | 2024-01-13 | GC-ECD | Agilent 8890 | WMO-SF6-X2014 | 9.14 | 0.03 | 4 | SF6_X2014 | 9.15 | 0.01 | 0.01 |
| KMA | CC498772 | sf6 | 2024-01-18 | GC-ECD | Agilent 8890 | WMO-SF6-X2014 | 9.63 | 0.03 | 4 | SF6_X2014 | 9.64 | 0.01 | 0.01 |
| KUP | CC718421 | co2 | 2024-01-24 | NDIR | LI-7000-IRG4-1038_Bern | WMO-CO2-X2019 | 417.49 | 0.04 | 60 | CO2_X2019 | 417.05 | 0.01 | -0.44 |
| KUP | CC498779 | co2 | 2024-01-24 | NDIR | LI-7000-IRG4-1038_Bern | WMO-CO2-X2019 | 417.49 | 0.04 | 60 | CO2_X2019 | 403.75 | 0.01 | -13.74 |
| MPI-BGC | CC718421 | ch4 | 2024-05-22 | CRDS | G2301 CFADS 2476 | WMO-CH4-X2004A | 1,942.97 | 0.50 | 480 | CH4_X2004A | 1,942.86 | 0.12 | -0.11 |
| MPI-BGC | CC498779 | ch4 | 2024-05-22 | CRDS | G2301 CFADS 2476 | WMO-CH4-X2004A | 1,801.71 | 0.50 | 480 | CH4_X2004A | 1,801.57 | 0.10 | -0.14 |
| MPI-BGC | CC718421 | co | 2024-05-23 | VUV | Aerolaser AL5002 SN166 | WMO-CO-X2014A | 114.10 | 2.00 | 74 | CO_X2014A | 117.55 | 0.54 | 3.45 |
| MPI-BGC | CC498779 | co | 2024-05-23 | VUV | AL5002-166 | WMO-CO-X2014A | 52.60 | 2.00 | 71 | CO_X2014A | 57.07 | 0.53 | 4.47 |
| MPI-BGC | CC718421 | co2 | 2024-05-22 | CRDS | G2301 CFADS 2476 | WMO-CO2-X2019 | 417.06 | 0.01 | 473 | CO2_X2019 | 417.05 | 0.01 | -0.01 |
| MPI-BGC | CC498779 | co2 | 2024-05-22 | CRDS | G2301 CFADS 2476 | WMO-CO2-X2019 | 403.76 | 0.01 | 450 | CO2_X2019 | 403.75 | 0.01 | -0.01 |
| MPI-BGC | D232735 | h2 | 2019-04-09 | GC-PDD | VICI D-3-I-HP PDD | MPI 2009 | 568.19 | 0.40 | 61 | H2_X2009 | 568.32 | 0.10 | 0.13 |
| MPI-BGC | D232748 | h2 | 2019-01-19 | GC-PDD | VICI D-3-I-HP PDD | MPI 2009 | 525.53 | 0.30 | 28 | H2_X2009 | 525.62 | 0.10 | 0.09 |
| MPI-BGC | CC498779 | n2o | 2024-05-21 | GC-ECD | Agilent 6890 G2 | WMO-N2O-X2006A | 315.12 | 0.15 | 51 | N2O_X2006A | 315.10 | 0.14 | -0.02 |
| MPI-BGC | CC718421 | n2o | 2024-05-21 | GC-ECD | Agilent 6890 G2 | WMO-N2O-X2006A | 334.72 | 0.15 | 54 | N2O_X2006A | 334.77 | 0.10 | 0.05 |
| MPI-BGC | CC498779 | sf6 | 2024-05-21 | GC-ECD | Agilent 6890 G2 | WMO-SF6-X2014 | 9.17 | 0.02 | 51 | SF6_X2014 | 9.17 | 0.01 | 0.00 |
| MPI-BGC | CC718421 | sf6 | 2024-05-21 | GC-ECD | Agilent 6890 G2 | WMO-SF6-X2014 | 11.04 | 0.02 | 54 | SF6_X2014 | 11.05 | 0.01 | 0.01 |
| NEON | CC498772 | ch4 | 2021-09-11 | CRDS | Picarro G2131 serial number 2140-CFGDS2276 | WMO-CH4-X2004A | 1,906.25 | 0.52 | 4 | CH4_X2004A | 1,905.77 | 0.16 | -0.48 |
| NEON | CC506496 | ch4 | 2021-09-11 | CRDS | Picarro G2131 serial number 2140-CFGDS2276 | WMO-CH4-X2004A | 1,791.58 | 0.27 | 4 | CH4_X2004A | 1,791.20 | 0.11 | -0.38 |
| NEON | CC498772 | co2 | 2021-09-11 | CRDS | Picarro G2131 serial number 2140-CFGDS2276 | WMO-CO2-X2019 | 419.09 | 0.03 | 4 | CO2_X2019 | 419.03 | 0.01 | -0.06 |
| NEON | CC506496 | co2 | 2021-09-11 | CRDS | Picarro G2131 serial number 2140-CFGDS2276 | WMO-CO2-X2019 | 402.77 | 0.05 | 4 | CO2_X2019 | 402.68 | 0.02 | -0.09 |
| NIES | CC498779 | co2 | 2022-02-02 | NDIR | Licor 6252 | NIES 09 | 403.53 | 0.05 | -999 | CO2_X2019 | 403.75 | 0.01 | 0.22 |
| NIES | CC718421 | co2 | 2022-02-02 | NDIR | Licor 6252 | NIES 09 | 416.82 | 0.05 | -999 | CO2_X2019 | 417.05 | 0.01 | 0.23 |
| NIST | CC498772 | ch4 | 2021-12-09 | GC-FID | NIST_CH4_2012 | 1,907.01 | 4.96 | 4 | CH4_X2004A | 1,905.77 | 0.16 | -1.24 | |
| NIST | CC506496 | ch4 | 2021-12-09 | GC-FID | NIST_CH4_2012 | 1,794.60 | 5.90 | 4 | CH4_X2004A | 1,791.20 | 0.11 | -3.40 | |
| PSU | CC498772 | ch4 | 2022-01-19 | CRDS | CFKADS2025 | WMO-CH4-X2004A | 1,905.50 | 1.00 | 6 | CH4_X2004A | 1,905.77 | 0.16 | 0.27 |
| PSU | CC506496 | ch4 | 2022-01-19 | CRDS | CFKADS2025 | WMO-CH4-X2004A | 1,791.30 | 0.50 | 7 | CH4_X2004A | 1,791.20 | 0.11 | -0.10 |
| PSU | CC498772 | co | 2022-01-19 | CRDS | CFKADS2025 | WMO-CO-X2014A | 115.00 | 2.00 | 7 | CO_X2014A | 122.78 | 0.41 | 7.78 |
| PSU | CC506496 | co | 2022-01-19 | CRDS | CFKADS2025 | WMO-CO-X2014A | 43.50 | 2.00 | 7 | CO_X2014A | 53.15 | 0.48 | 9.65 |
| PSU | CC506496 | co2 | 2022-01-19 | CRDS | CFKADS2025 | WMO-CO2-X2019 | 402.65 | 0.04 | 7 | CO2_X2019 | 402.68 | 0.02 | 0.03 |
| PSU | CC498772 | co2 | 2022-01-19 | CRDS | CFKADS2025 | WMO-CO2-X2019 | 418.99 | 0.06 | 7 | CO2_X2019 | 419.03 | 0.01 | 0.04 |
| RHUL | CC498990 | ch4 | 2022-03-18 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,795.56 | 0.20 | 4 | CH4_X2004A | 1,794.82 | 0.13 | -0.74 |
| RHUL | CA06015 | ch4 | 2022-03-18 | CRDS | Picarro G2301 | WMO-CH4-X2004A | 1,934.79 | 0.26 | 4 | CH4_X2004A | 1,934.59 | 0.12 | -0.20 |
| RHUL | CC498990 | co | 2022-02-25 | GC-RGA | Model: Peak Performer, PP1 | WMO-CO-X2014A | 69.52 | 0.21 | 8 | CO_X2014A | 65.71 | 0.73 | -3.81 |
| RHUL | CA06015 | co | 2022-02-25 | GC-RGA | Model: Peak Performer, PP1 | WMO-CO-X2014A | 109.59 | 0.30 | 6 | CO_X2014A | 109.40 | 0.97 | -0.19 |
| RHUL | CA06015 | co2 | 2022-03-18 | CRDS | Picarro G2301 | WMO-CO2-X2007 | 418.03 | 0.03 | 4 | CO2_X2019 | 418.43 | 0.01 | 0.40 |
| RHUL | CC498990 | co2 | 2022-03-18 | CRDS | Picarro G2301 | WMO-CO2-X2007 | 397.61 | 0.02 | 4 | CO2_X2019 | 397.93 | 0.01 | 0.32 |
| RUG | CC718421 | ch4 | 2023-11-01 | GC-FID | Picarro G2401 | AIST-CH4 | 1,942.83 | 0.02 | 30 | CH4_X2004A | 1,942.86 | 0.12 | 0.03 |
| RUG | CC498779 | ch4 | 2023-11-01 | CRDS | Picarro G2401 | WMO-CH4-X2004A | 1,801.54 | 0.04 | 30 | CH4_X2004A | 1,801.57 | 0.10 | 0.03 |
| RUG | CC498779 | co | 2023-11-01 | CRDS | Picarro G5310 JKADS5105 | WMO-CO-X2014A | 56.66 | 0.06 | 30 | CO_X2014A | 56.48 | 0.49 | -0.18 |
| RUG | CC718421 | co | 2023-11-01 | CRDS | Picarro G5310 JKADS5105 | WMO-CO-X2014A | 115.91 | 0.06 | 30 | CO_X2014A | 116.76 | 0.49 | 0.85 |
| RUG | CC718421 | co2 | 2023-11-01 | CRDS | Picarro G2401 | WMO-CO2-X2019 | 417.09 | 0.00 | 30 | CO2_X2019 | 417.05 | 0.01 | -0.05 |
| RUG | CC498779 | co2 | 2023-11-01 | CRDS | Picarro G2401 | WMO-CO2-X2019 | 403.77 | 0.01 | 30 | CO2_X2019 | 403.75 | 0.01 | -0.03 |
| RUG | CC718421 | n2o | 2023-11-01 | OA-ICOS | Picarro G5310 JKADS5105 | WMO-N2O-X2006A | 334.63 | 0.02 | 30 | N2O_X2006A | 334.77 | 0.10 | 0.14 |
| RUG | CC498779 | n2o | 2023-11-01 | OA-ICOS | Picarro G5310 JKADS5105 | WMO-N2O-X2006A | 315.15 | 0.02 | 30 | N2O_X2006A | 315.10 | 0.14 | -0.05 |
| RUG | CC498779 | sf6 | 2023-10-26 | GC-ECD | Agilent 8890 GC | WMO-SF6-X2014 | 9.09 | 0.06 | 9 | SF6_X2014 | 9.17 | 0.01 | 0.08 |
| RUG | CC718421 | sf6 | 2023-10-26 | GC-ECD | Agilent 8890 GC | WMO-SF6-X2014 | 10.73 | 0.10 | 9 | SF6_X2014 | 11.05 | 0.01 | 0.32 |
| SAWS | CC498889 | ch4 | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CH4-X2004A | 1,904.49 | 0.04 | 5 | CH4_X2004A | 1,905.04 | 0.10 | 0.55 |
| SAWS | CC506414 | ch4 | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CH4-X2004A | 1,809.54 | 0.06 | 5 | CH4_X2004A | 1,810.39 | 0.14 | 0.85 |
| SAWS | CC506414 | co | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CO-X2014A | 52.50 | 0.55 | 5 | CO_X2014A | 59.67 | 0.72 | 7.17 |
| SAWS | CC498889 | co | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CO-X2014A | 115.91 | 0.62 | 5 | CO_X2014A | 123.56 | 0.62 | 7.65 |
| SAWS | CC498889 | co2 | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CO2-X2019 | 418.25 | 0.01 | 5 | CO2_X2019 | 418.21 | 0.01 | -0.04 |
| SAWS | CC506414 | co2 | 2024-07-08 | CRDS | Picarro G2401 #3498-CFKADS2350 | WMO-CO2-X2019 | 405.03 | 0.01 | 5 | CO2_X2019 | 405.28 | 0.01 | 0.25 |
| SAWS | CC498889 | n2o | 2024-07-08 | OA-ICOS | Picarro G2508 | WMO-N2O-X2006A | 331.02 | 0.13 | 5 | N2O_X2006A | 330.88 | 0.08 | -0.14 |
| SAWS | CC506414 | n2o | 2024-07-08 | OA-ICOS | Picarro G2508 | WMO-N2O-X2006A | 319.92 | 0.12 | 5 | N2O_X2006A | 319.96 | 0.07 | 0.04 |
| TU | CC718421 | ch4 | 2022-03-10 | GC-FID | TU-1987 scale | 1,941.10 | 2.30 | 20 | CH4_X2004A | 1,942.86 | 0.12 | 1.76 | |
| TU | CC498779 | ch4 | 2022-03-10 | GC-FID | TU-1987 scale | 1,799.50 | 2.30 | 20 | CH4_X2004A | 1,801.57 | 0.10 | 2.07 | |
| TU | CC718421 | co2 | 2022-03-15 | NDIR | TU-2010 | 417.10 | 0.01 | 18 | CO2_X2019 | 417.05 | 0.01 | -0.05 | |
| TU | CC498779 | co2 | 2022-03-15 | NDIR | TU-2010 | 403.77 | 0.01 | 18 | CO2_X2019 | 403.75 | 0.01 | -0.02 | |
| TU | CC718421 | sf6 | 2022-04-09 | GC-ECD | TU-2002 scale (updated) | 11.01 | 0.03 | 40 | SF6_X2014 | 11.05 | 0.01 | 0.04 | |
| TU | CC498779 | sf6 | 2022-04-09 | GC-ECD | TU-2002 scale (updated) | 9.14 | 0.03 | 40 | SF6_X2014 | 9.17 | 0.01 | 0.03 | |
| UBA-SCHAU | CC498886 | ch4 | 2022-07-14 | CRDS | Picarro G2301 (Icos ID 1072) | WMO-CH4-X2004A | 1,903.64 | 0.05 | 5 | CH4_X2004A | 1,903.76 | 0.11 | 0.12 |
| UBA-SCHAU | CB12416 | ch4 | 2022-07-14 | CRDS | Picarro G2301 (Icos ID 1072) | WMO-CH4-X2004A | 1,789.45 | 0.05 | 5 | CH4_X2004A | 1,789.55 | 0.15 | 0.10 |
| UBA-SCHAU | CC498886 | co | 2022-07-18 | OA-ICOS | WMO-CO-X2014A | 120.28 | 0.04 | 4 | CO_X2014A | 120.52 | 0.80 | 0.24 | |
| UBA-SCHAU | CB12416 | co | 2022-07-18 | OA-ICOS | LosGatosResearch (Icos ID 1074) | WMO-CO-X2014A | 57.46 | 0.04 | 4 | CO_X2014A | 56.26 | 0.93 | -1.20 |
| UBA-SCHAU | CC498886 | co2 | 2022-07-14 | CRDS | Picarro G2301 (Icos ID 1072) | WMO-CO2-X2019 | 419.22 | 0.01 | 5 | CO2_X2019 | 419.26 | 0.02 | 0.04 |
| UBA-SCHAU | CB12416 | co2 | 2022-07-14 | CRDS | Picarro 2301 1072 (Icos ID) | WMO-CO2-X2019 | 403.84 | 0.02 | 5 | CO2_X2019 | 403.86 | 0.01 | 0.02 |
| UBA-SCHAU | CB12416 | n2o | 2022-07-18 | OA-ICOS | LosGatosResearch (Icos ID 1074) | WMO-N2O-X2006A | 319.51 | 0.04 | 4 | N2O_X2006A | 319.18 | 0.12 | -0.33 |
| UBA-SCHAU | CC498886 | n2o | 2022-07-18 | OA-ICOS | LosGatosResearch (Icos ID 1074) | WMO-N2O-X2006A | 331.06 | 0.04 | 4 | N2O_X2006A | 330.97 | 0.15 | -0.09 |
| UBA-SCHAU | CB12416 | sf6 | 2022-07-29 | GC-ECD | WMO-SF6-X2006 | 9.10 | 0.05 | 4 | SF6_X2014 | 9.13 | 0.01 | 0.03 | |
| UBA-SCHAU | CC498886 | sf6 | 2022-07-29 | GC-ECD | HP GC 6890 ECD | WMO-SF6-X2006 | 9.59 | 0.05 | 4 | SF6_X2014 | 9.64 | 0.01 | 0.05 |
| UBA/ZUG | CB12416 | ch4 | 2022-05-12 | CRDS | Picarro 2301 2043-CFADS2378 | WMO-CH4-X2004A | 1,789.28 | 0.08 | 1 | CH4_X2004A | 1,789.55 | 0.15 | 0.27 |
| UBA/ZUG | CC498886 | ch4 | 2022-05-12 | CRDS | Picarro 2301 2043-CFADS2378 | WMO-CH4-X2004A | 1,903.50 | 0.11 | 1 | CH4_X2004A | 1,903.76 | 0.11 | 0.26 |
| UBA/ZUG | CC498886 | co | 2022-05-12 | OA-ICOS | LGR EP N2O/ CO SN14-0066 | WMO-CO-X2014A | 120.13 | 0.02 | 1 | CO_X2014A | 120.30 | 0.77 | 0.17 |
| UBA/ZUG | CB12416 | co | 2022-05-12 | OA-ICOS | LGR EP N2O/ CO SN14-0066 | WMO-CO-X2014A | 56.24 | 0.01 | 1 | CO_X2014A | 56.07 | 0.91 | -0.17 |
| UBA/ZUG | CB12416 | co2 | 2022-05-12 | CRDS | Picarro 2301 2043-CFADS2378 | WMO-CO2-X2019 | 403.83 | 0.01 | 1 | CO2_X2019 | 403.86 | 0.01 | 0.03 |
| UBA/ZUG | CC498886 | co2 | 2022-05-12 | CRDS | Picarro 2301 2043-CFADS2378 | WMO-CO2-X2019 | 419.20 | 0.01 | 1 | CO2_X2019 | 419.26 | 0.02 | 0.06 |
| UBA/ZUG | CC498886 | n2o | 2022-05-12 | OA-ICOS | LGR EP N2O/ CO SN14-0066 | WMO-N2O-X2006A | 330.98 | 0.03 | 1 | N2O_X2006A | 330.97 | 0.15 | -0.01 |
| UBA/ZUG | CB12416 | n2o | 2022-05-12 | OA-ICOS | LGR EP N2O/ CO SN14-0066 | WMO-N2O-X2006A | 319.14 | 0.03 | 1 | N2O_X2006A | 319.18 | 0.12 | 0.04 |
| UBA/ZUG | CC498886 | sf6 | 2022-05-16 | GC-ECD | HP GC 6890 µECD US00030144 | WMO-SF6-X2014 | 9.71 | 0.11 | 1 | SF6_X2014 | 9.64 | 0.01 | -0.08 |
| UBA/ZUG | CB12416 | sf6 | 2022-05-16 | GC-ECD | HP GC 6890 µECD US00030144 | WMO-SF6-X2014 | 9.21 | 0.08 | 2 | SF6_X2014 | 9.13 | 0.01 | -0.08 |
| UEA | CA06015 | ch4 | 2023-03-30 | FTIR | Spectronus WAO | WMO-CH4-X2004A | 1,934.35 | 0.01 | 9 | CH4_X2004A | 1,934.59 | 0.12 | 0.24 |
| UEA | CC498990 | ch4 | 2023-03-30 | FTIR | Spectronus WAO | WMO-CH4-X2004A | 1,794.55 | 0.11 | 10 | CH4_X2004A | 1,794.82 | 0.13 | 0.27 |
| UEA | CA06015 | co | 2023-03-30 | FTIR | Spectronus WAO | WMO-CO-X2014A | 111.89 | 0.09 | 9 | CO_X2014A | 109.40 | 0.97 | -2.49 |
| UEA | CC498990 | co | 2023-03-30 | FTIR | Spectronus WAO | WMO-CO-X2014A | 67.01 | 0.11 | 10 | CO_X2014A | 66.86 | 0.89 | -0.15 |
| UEA | CC498990 | co2 | 2023-03-30 | FTIR | Spectronus WAO | WMO-CO2-X2019 | 397.91 | 0.02 | 10 | CO2_X2019 | 397.93 | 0.01 | 0.02 |
| UEA | CA06015 | co2 | 2023-03-30 | FTIR | Spectronus WAO | WMO-CO2-X2019 | 418.42 | 0.02 | 9 | CO2_X2019 | 418.43 | 0.01 | 0.01 |
| UEA | CA06015 | n2o | 2023-03-30 | FTIR | Spectronus WAO | WMO-N2O-X2006A | 331.07 | 0.06 | 9 | N2O_X2006A | 331.03 | 0.11 | -0.04 |
| UEA | CC498990 | n2o | 2023-03-30 | FTIR | Spectronus WAO | WMO-N2O-X2006A | 328.51 | 0.05 | 10 | N2O_X2006A | 328.58 | 0.12 | 0.07 |
| WCC-EMPA | CC718421 | ch4 | 2023-11-20 | CRDS | Picarro G2401 CFKADS2329 | WMO-CH4-X2004A | 1,942.51 | 0.01 | 5 | CH4_X2004A | 1,942.86 | 0.12 | 0.35 |
| WCC-EMPA | CC498779 | ch4 | 2023-11-20 | GC-FID | Picarro G2401 CFKADS2329 | WMO-CH4-X2004A | 1,800.94 | 0.05 | 5 | CH4_X2004A | 1,801.57 | 0.10 | 0.63 |
| WCC-EMPA | CC718421 | co | 2023-11-20 | CRDS | Picarro G2401 CFKADS2329 | WMO-CO-X2014A | 115.63 | 1.13 | 5 | CO_X2014A | 116.83 | 0.50 | 1.20 |
| WCC-EMPA | CC498779 | co | 2023-11-20 | CRDS | Picarro G2401 CFKADS2329 | WMO-CO-X2014A | 53.96 | 0.90 | 5 | CO_X2014A | 56.53 | 0.50 | 2.57 |
| WCC-EMPA | CC498779 | co2 | 2023-11-20 | CRDS | Picarro G2401 CFKADS2329 | WMO-CO2-X2019 | 403.72 | 0.01 | 5 | CO2_X2019 | 403.75 | 0.01 | 0.03 |
| WCC-EMPA | CC718421 | co2 | 2023-11-20 | CRDS | Picarro G2401 CFKADS2329 | WMO-CO2-X2019 | 417.04 | 0.01 | 5 | CO2_X2019 | 417.05 | 0.01 | 0.01 |
| WCC-EMPA | CC718421 | n2o | 2023-11-20 | OA-ICOS | LGR 913-0015 #12-0066 | WMO-N2O-X2006A | 334.71 | 0.03 | 5 | N2O_X2006A | 334.77 | 0.10 | 0.06 |
| WCC-EMPA | CC498779 | n2o | 2023-11-20 | OA-ICOS | LGR 913-0015 #12-0066 | WMO-N2O-X2006A | 314.99 | 0.29 | 5 | N2O_X2006A | 315.10 | 0.14 | 0.11 |
| ZJUT | CC718421 | ch4 | 2022-11-02 | CRDS | WMO-CH4-X2004A | 1,943.00 | 0.10 | -999 | CH4_X2004A | 1,942.86 | 0.12 | -0.14 | |
| ZJUT | CC498779 | ch4 | 2022-11-02 | CRDS | WMO-CH4-X2004A | 1,801.70 | 0.40 | -999 | CH4_X2004A | 1,801.57 | 0.10 | -0.13 | |
| ZJUT | CC718421 | co | 2022-11-02 | CRDS | WMO-CO-X2014A | 112.90 | 0.40 | -999 | CO_X2014A | 115.33 | 0.43 | 2.43 | |
| ZJUT | CC498779 | co | 2022-11-02 | CRDS | WMO-CO-X2014A | 52.90 | 1.30 | -999 | CO_X2014A | 55.42 | 0.43 | 2.52 | |
| ZJUT | CC718421 | co2 | 2022-11-02 | CRDS | WMO-CO2-X2019 | 417.17 | 0.02 | -999 | CO2_X2019 | 417.05 | 0.01 | -0.12 | |
| ZJUT | CC498779 | co2 | 2022-11-02 | CRDS | WMO-CO2-X2019 | 403.82 | 0.01 | -999 | CO2_X2019 | 403.75 | 0.01 | -0.07 | |
| ZJUT | CC718421 | n2o | 2022-11-07 | GC-ECD | WMO-N2O-X2006A | 333.79 | 0.16 | -999 | N2O_X2006A | 334.77 | 0.10 | 0.98 | |
| ZJUT | CC498779 | n2o | 2022-11-07 | GC-ECD | WMO-N2O-X2006A | 314.60 | 0.06 | -999 | N2O_X2006A | 315.10 | 0.14 | 0.50 | |
| ZJUT | CC718421 | sf6 | 2022-11-07 | GC-ECD | WMO-SF6-X2014 | 11.01 | 0.01 | -999 | SF6_X2014 | 11.05 | 0.01 | 0.04 | |
| ZJUT | CC498779 | sf6 | 2022-11-07 | GC-ECD | WMO-SF6-X2014 | 9.15 | 0.00 | -999 | SF6_X2014 | 9.17 | 0.01 | 0.02 |