Numerical analysis for Global CO2 Distribution product involves the application of observation data reported to the World Data Centre for Greenhouse Gases (WDCGG) with permission for usage from the corresponding data contributors. Below, the relevant observation sites are indicated by red dots and listed in the table.
| Station | Country/Territory | Contributor | Latitude | Longitude | Altitude |
|---|---|---|---|---|---|
| Alert | Canada | CSIRO | 82°30'N | 62°20'W | 185 m |
| Amsterdam Island | France | LSCE | 37°48'S | 77°32'E | 70 m |
| Ascension Island | United Kingdom of Great Britain and Northern Ireland | NOAA/ESRL UKMO | 7°58'S | 14°24'W | 91 m |
| Assekrem | Algeria | NOAA/ESRL ONM | 23°16'N | 5°38'E | 2710 m |
| Baring Head | New Zealand | NIWA | 41°24'S | 174°52'E | 85 m |
| Barrow | United States of America | NOAA/ESRL | 71°19'N | 156°37'W | 11 m |
| Bering Island | Russian Federation | MGO | 55°12'N | 165°59'E | 13 m |
| Cape Ferguson | Australia | CSIRO | 19°17'S | 147°03'E | 2 m |
| Cape Kumukahi | United States of America | NOAA/ESRL | 19°31'N | 154°49'W | 3 m |
| Cape Meares | United States of America | NOAA/ESRL | 45°00'N | 124°00'W | 30 m |
| Cape Point | South Africa | SAWS | 34°21'S | 18°29'E | 230 m |
| Christmas Island | Kiribati | NOAA/ESRL | 1°42'N | 157°10'W | 3 m |
| Cold Bay | United States of America | NOAA/ESRL NWS | 55°12'N | 162°43'W | 25 m |
| Crozet | France | NOAA/ESRL LSCE | 46°26'S | 51°50'E | 120 m |
| Dwejra Point | Malta | NOAA/ESRL | 36°03'N | 14°11'E | 30 m |
| Easter Island | Chile | NOAA/ESRL DMC | 27°10'S | 109°25'W | 41 m |
| Estevan Point | Canada | CSIRO | 49°23'N | 126°33'W | 7 m |
| Gobabeb | Namibia | NOAA/ESRL GTRC | 23°34'S | 15°02'E | 408 m |
| Guam (Mariana Island) | United States of America | NOAA/ESRL UOG | 13°26'N | 144°47'E | 2 m |
| Halley | Antarctica | NOAA/ESRL BAS | 75°34'S | 25°30'W | 30 m |
| Izaña (Tenerife) | Spain | AEMET | 28°19'N | 16°30'W | 2373 m |
| Jubany | Antarctica | IAA ICES | 62°14'S | 58°40'W | 15 m |
| Kennaook / Cape Grim | Australia | CSIRO BoM | 40°41'S | 144°41'E | 94 m |
| Key Biscane | United States of America | NOAA/ESRL AOML | 25°40'N | 80°12'W | 3 m |
| Kotelnyj Island | Russian Federation | MGO | 76°00'N | 137°52'E | 5 m |
| Kyzylcha | Uzbekistan | MGO | 40°52'N | 66°09'E | 340 m |
| Lampedusa | Italy | ENEA | 35°31'N | 12°38'E | 45 m |
| Lerwick | United Kingdom of Great Britain and Northern Ireland | CSIRO | 60°08'N | 1°11'W | 84 m |
| Mace Head | Ireland | LSCE | 53°20'N | 9°54'W | 8 m |
| Macquarie Island | Australia | CSIRO | 54°30'S | 158°56'E | 6 m |
| Mahé | Seychelles | NOAA/ESRL SBS | 4°40'S | 55°10'E | 3 m |
| Mauna Loa | United States of America | NOAA/ESRL | 19°32'N | 155°35'W | 3397 m |
| Mawson | Antarctica | CSIRO | 67°36'S | 62°52'E | 20 m |
| Minamitorishima | Japan | JMA | 24°17'N | 153°59'E | 7 m |
| Monte Cimone | Italy | IAFMS | 44°12'N | 10°42'E | 2165 m |
| Mould Bay | Canada | NOAA/ESRL ECCC | 76°15'N | 119°21'W | 58 m |
| Mt. Dodaira | Japan | SAIPF | 36°00'N | 139°11'E | 832 m |
| Mt. Waliguan | China | NOAA/ESRL CMA | 36°17'N | 100°54'E | 3810 m |
| Niwot Ridge - T-van | United States of America | NOAA/ESRL INSTAAR | 40°03'N | 105°35'W | 3523 m |
| Ocean Station Charlie | United States of America | MGO | 54°00'N | 35°00'W | 0 m |
| Ocean Station "M" | Norway | NOAA/ESRL NMI | 66°00'N | 2°00'E | 4 m |
| Pallas | Finland | FMI | 67°58'N | 24°07'E | 560 m |
| Palmer Station | Antarctica | NOAA/ESRL NSF | 64°46'S | 64°03'W | 10 m |
| Plateau Assy | Kazakhstan | NOAA/ESRL | 43°15'N | 77°53'E | 2519 m |
| Plateau Rosa | Italy | RSE | 45°56'N | 7°42'E | 3480 m |
| Ragged Point | Barbados | NOAA/ESRL | 13°10'N | 59°26'W | 45 m |
| Ryori | Japan | JMA | 39°02'N | 141°49'E | 260 m |
| Samoa (Cape Matatula) | United States of America | NOAA/ESRL | 14°15'S | 170°34'W | 77 m |
| Sand Island | United States of America | NOAA/ESRL USFWS | 28°13'N | 177°22'W | 4 m |
| Sede Boker | Israel | NOAA/ESRL WIS AIES | 31°08'N | 34°53'E | 400 m |
| Serreta (Terceira) | Portugal | NOAA/ESRL INMG | 38°46'N | 27°23'W | 40 m |
| Shemya Island | United States of America | NOAA/ESRL CM | 52°43'N | 174°06'E | 40 m |
| South Pole | Antarctica | NOAA/ESRL | 90°00'S | 24°48'W | 2841 m |
| St. Croix | United States of America | NOAA/ESRL FDU | 17°45'N | 64°45'W | 3 m |
| Storhofdi | Iceland | NOAA/ESRL IMO | 63°24'N | 20°17'W | 118 m |
| Summit | Denmark | NOAA/ESRL NSF | 72°35'N | 38°29'W | 3238 m |
| Syowa | Antarctica | NOAA/ESRL NIPR TU | 69°00'S | 39°35'E | 29 m |
| Teriberka | Russian Federation | MGO | 69°12'N | 35°06'E | 40 m |
| Tudor Hill (Bermuda) | United Kingdom of Great Britain and Northern Ireland | NOAA/ESRL BIOS | 32°16'N | 64°53'W | 30 m |
| Ulaan Uul | Mongolia | NOAA/ESRL IMH | 44°27'N | 111°05'E | 992 m |
| Ushuaia | Argentina | NOAA/ESRL SMNA | 54°51'S | 68°19'W | 18 m |
| Wendover | United States of America | NOAA/ESRL NWS | 39°54'N | 113°43'W | 1320 m |
| Yonagunijima | Japan | JMA | 24°28'N | 123°01'E | 30 m |
| Zeppelin Mountain (Ny-Ålesund) | Norway | ITM | 78°54'N | 11°53'E | 475 m |
| Zugspitze-Gipfel | Germany | UBAG | 47°25'N | 10°59'E | 2962 m |
| Zugspitze-Schneefernerhaus | Germany | UBAG | 47°25'N | 10°59'E | 2666 m |
| Pacific Ocean (00N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (05N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (05S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (10N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (10S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (15N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (15S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (20N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (20S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (25N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (25S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (30N) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (30S) | N/A | NOAA/ESRL SCMI | - | - | - |
| Pacific Ocean (35S) | N/A | NOAA/ESRL SCMI | - | - | - |
| South China Sea (03N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (06N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (09N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (12N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (15N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (18N) | N/A | NOAA/ESRL | - | - | - |
| South China Sea (21N) | N/A | NOAA/ESRL | - | - | - |
| Alligator liberty, M/V | N/A | JMA ECoMo | - | - | - |
| Keifu Maru, R/V | N/A | JMA | - | - | - |
| Kofu Maru, R/V | N/A | JMA | - | - | - |
| Ryofu Maru, R/V | N/A | JMA | - | - | - |
| Aircraft Observation of Atmospheric trace gases by JMA | N/A | JMA | - | - | - |
| Comprehensive Observation Network for TRace gases by AIrLiner (CONTRAIL) | N/A | NIES MRI | - | - | - |
List of abbreviations