Cooperative Air Sampling Network
The NOAA/ESRL/GMD CCGG cooperative air sampling network effort began in 1967 at Niwot Ridge, Colorado. Today, the network is an international effort which includes regular discrete samples from the NOAA ESRL/GMD baseline observatories, cooperative fixed sites, and commercial ships. Air samples are collected approximately weekly from a globally distributed network of sites. Samples are analyzed for CO2, CH4, CO, H2, N2O, and SF6; and by INSTAAR for the stable isotopes of CO2 and CH4 and for many volatile organic compounds (voc) such as ethane (C2H6), ethylene (C2H4) and propane (C3H8). Measurement data are used to identify long-term trends, seasonal variability, and spatial distribution of carbon cycle gases.
141 sites in 45 countries
| Code | Name | Country | Latitude | Longitude | Elevation (meters) | Time from GMT | Cooperating Agency |
|---|---|---|---|---|---|---|---|
| ABP* | Arembepe, Bahia | Brazil | -12.770 | -38.170 | 1.0 | -3 hours | Instituto de Pesquisas Energeticas e Nucleares, Centro de Quimica e Meio Ambiente, Laboratorio de Quimica Atmosferica |
| ALT | Alert, Nunavut | Canada | 82.451 | -62.507 | 190.0 | -4 hours | Environment Canada |
| AMS* | Amsterdam Island | France | -37.798 | 77.538 | 55.0 | +5 hours | Centre des Faibles Radioactivities/TAAF |
| AMT | Argyle, Maine | United States | 45.035 | -68.682 | 53.0 | -5 hours | University of Maine |
| AMY | Anmyeon-do | Republic of Korea | 36.539 | 126.329 | 85.1 | +9 hours | Korea Global Atmosphere Watch Center, Korea Meteorological Administration |
| ASC | Ascension Island | United Kingdom | -7.967 | -14.400 | 85.0 | -1 hours | Met Office (United Kingdom) |
| ASK | Assekrem | Algeria | 23.262 | 5.632 | 2710.0 | +1 hours | Office National de la Meteorologie |
| AVI* | St. Croix, Virgin Islands | United States | 17.750 | -64.750 | 3.0 | -4 hours | Fairleigh Dickinson University |
| AZR | Terceira Island, Azores | Portugal | 38.766 | -27.375 | 19.0 | -1 hours | Instituto Nacional de Meteorologia e Geofisica |
| BAL* | Baltic Sea | Poland | 55.350 | 17.220 | 3.0 | +1 hours | Morski Instytut Rybacki |
| BAO | Boulder Atmospheric Observatory, Colorado | United States | 40.050 | -105.004 | 1584.0 | -7 hours | Private Party; ESRL Physical Sciences Division; NOAA Earth System Research Laboratory, Global Monitoring Division |
| BHD | Baring Head Station | New Zealand | -41.408 | 174.871 | 85.0 | +12 hours | National Institute of Water and Atmospheric Research |
| BKT | Bukit Kototabang | Indonesia | -0.202 | 100.318 | 845.0 | +7 hours | Bureau of Meteorology and Geophysics |
| BME* | St. Davids Head, Bermuda | United Kingdom | 32.368 | -64.648 | 12.0 | -4 hours | Bermuda Institute of Ocean Sciences |
| BMW | Tudor Hill, Bermuda | United Kingdom | 32.265 | -64.879 | 30.0 | -4 hours | Bermuda Institute of Ocean Sciences |
| BRW | Barrow, Alaska | United States | 71.323 | -156.611 | 11.0 | -9 hours | NOAA Earth System Research Laboratory, Global Monitoring Division |
| BSC* | Black Sea, Constanta | Romania | 44.178 | 28.665 | 0.0 | +2 hours | Romanian Marine Research Institute |
| CBA | Cold Bay, Alaska | United States | 55.210 | -162.720 | 21.3 | -9 hours | U.S. National Weather Service |
| CGO | Cape Grim, Tasmania | Australia | -40.683 | 144.690 | 94.0 | +10 hours | CSIRO, Atmospheric Research |
| CHR | Christmas Island | Republic of Kiribati | 1.700 | -157.152 | 0.0 | -10 hours | Dive Kiribati |
| CIB | Centro de Investigacion de la Baja Atmosfera (CIBA) | Spain | 41.810 | -4.930 | 845.0 | +1 hours | Centro de Investigacion de la Baja Atmosfera, Univ. of Valladolid |
| CMO* | Cape Meares, Oregon | United States | 45.478 | -123.969 | 30.0 | -8 hours | Oregon Graduate Institute of Science and Technology |
| COS* | Cosmos | Peru | -12.120 | -75.330 | 4600.0 | -5 hours | Instituto Geofisico de Peru |
| CPT | Cape Point | South Africa | -34.352 | 18.489 | 230.0 | +2 hours | South African Weather Service |
| CRV | Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) | United States | 64.986 | -147.598 | 611.4 | -8 hours | NASA Jet Propulsion Laboratory; NOAA/NESDIS/OSPO/FCDAS |
| CRZ | Crozet Island | France | -46.434 | 51.848 | 197.0 | +5 hours | Centre des Faibles Radioactivities/TAAF |
| DRP | Drake Passage | N/A | -59.000 | -64.690 | 0.0 | -4 hours | National Science Foundation |
| DSI | Dongsha Island | Taiwan | 20.699 | 116.730 | 3.0 | +8 hours | National Central University, Taiwan |
| EIC | Easter Island | Chile | -27.160 | -109.428 | 47.0 | -7 hours | Direccion Meteorologica de Chile |
| FLK* | Falkland Islands | United Kingdom | -51.700 | -57.870 | 51.0 | -5 hours | British Meteorological Service |
| GLF* | Conejo | Mexico | 18.720 | -95.630 | 113.0 | -6 hours | Sistema Internacional de Monitoreo Ambiental |
| GMI | Mariana Islands | Guam | 13.386 | 144.656 | 0.0 | +10 hours | University of Guam/Marine Laboratory |
| GOZ* | Dwejra Point, Gozo | Malta | 36.048 | 14.889 | 1.0 | +1 hours | Ministry of Foreign Affairs and Environment |
| HBA | Halley Station, Antarctica | United Kingdom | -75.605 | -26.210 | 30.0 | -2 hours | British Antarctic Survey |
| HPB | Hohenpeissenberg | Germany | 47.801 | 11.024 | 936.0 | +1 hours | Deutscher Wetterdienst |
| HSU | Humboldt State University | United States | 41.059 | -124.750 | 0.0 | -8 hours | Humbolt State University |
| HUN | Hegyhatsal | Hungary | 46.950 | 16.650 | 248.0 | +1 hours | Hungarian Meteorological Service |
| ICE | Storhofdi, Vestmannaeyjar | Iceland | 63.400 | -20.288 | 118.0 | +0 hours | Icelandic Meteorological Office |
| ITN* | Grifton, North Carolina | United States | 35.365 | -77.393 | 8.0 | -5 hours | WITN Television |
| IZO | Izana, Tenerife, Canary Islands | Spain | 28.309 | -16.499 | 2372.9 | +0 hours | Izana Observatory/Meteorological State Agency of Spain |
| KCO* | Kaashidhoo | Republic of Maldives | 4.970 | 73.470 | 1.0 | +5 hours | University of California, San Diego (INDOEX) |
| KEY | Key Biscayne, Florida | United States | 25.665 | -80.158 | 1.0 | -5 hours | NOAA Atlantic Oceanographic and Meteorological Laboratory |
| KPA* | Kitt Peak, Arizona | United States | 32.000 | -112.000 | 2083.0 | -7 hours | Battelle Pacific Northwest Laboratories |
| KUM | Cape Kumukahi, Hawaii | United States | 19.520 | -154.820 | 3.0 | -10 hours | NOAA Earth System Research Laboratory, Global Monitoring Division |
| KZD* | Sary Taukum | Kazakhstan | 44.084 | 76.871 | 595.0 | +6 hours | Kazakh Scientific Institute of Environmental Monitoring and Climate |
| KZM* | Plateau Assy | Kazakhstan | 43.250 | 77.880 | 2519.0 | +6 hours | Kazakh Scientific Institute of Environmental Monitoring and Climate |
| LEF | Park Falls, Wisconsin | United States | 45.945 | -90.273 | 472.0 | -6 hours | Wisconsin Educational Communications Board & US Forest Service; MBMAS; USDA Forest Service Forestry Sciences Laboratory; USDA Forest Service |
| LEW | Lewisburg, Pennsylvania | United States | 40.945 | -76.879 | 161.0 | -5 hours | Earth Networks, Inc. |
| LLB* | Lac La Biche, Alberta | Canada | 54.950 | -112.450 | 540.0 | -7 hours | Environment Canada |
| LLN | Lulin | Taiwan | 23.470 | 120.870 | 2862.0 | +8 hours | Lulin Atmospheric Background Station |
| LMP | Lampedusa | Italy | 35.520 | 12.620 | 45.0 | +2 hours | Ente per le Nuove tecnologie, l’Energia e l’Ambiente |
| MBC* | Mould Bay, Northwest Territories | Canada | 76.247 | -119.353 | 30.0 | -10 hours | Environment Canada |
| MBO | Mt. Bachelor Observatory | United States | 43.977 | -121.686 | 2731.0 | -8 hours | University of Washington |
| MCM* | McMurdo Station, Antarctica | United States | -77.830 | 166.600 | 11.0 | +12 hours | National Science Foundation |
| MEX | High Altitude Global Climate Observation Center | Mexico | 18.984 | -97.311 | 4464.0 | -6 hours | Sistema Internacional de Monitoreo Ambiental |
| MHD | Mace Head, County Galway | Ireland | 53.326 | -9.899 | 5.0 | +0 hours | National University of Ireland, Galway |
| MID | Sand Island, Midway | United States | 28.210 | -177.380 | 11.0 | -11 hours | U.S. Fish and Wildlife Service |
| MKN* | Mt. Kenya | Kenya | -0.062 | 37.297 | 3644.0 | +3 hours | Kenya Meteorological Department |
| MKO* | Mauna Kea, Hawaii | United States | 19.830 | -155.470 | 4220.0 | -10 hours | University of Hawaii/Institute for Astronomy |
| MLF* | Mauna Loa, Hawaii | United States | 19.530 | -155.580 | 3397.0 | -10 hours | |
| MLO | Mauna Loa, Hawaii | United States | 19.536 | -155.576 | 3397.0 | -10 hours | NOAA Earth System Research Laboratory, Global Monitoring Division |
| MSH | Mashpee, Massachusetts | United States | 41.657 | -70.497 | 32.3 | -5 hours | Earth Networks |
| MVY* | Marthas Vineyard, Massachusetts | United States | 41.325 | -70.567 | 0.0 | -5 hours | Woods Hole Oceanographic Institute |
| MWO | Mt. Wilson Observatory | United States | 34.225 | -118.059 | 1728.0 | -8 hours | UCLA Astrophysics/Solar Observatory |
| NAT | Farol De Mae Luiza Lighthouse | Brazil | -5.795 | -35.185 | 50.0 | -3 hours | Instituto de Pesquisas Energéticas e Nucleares, Il Centro de Química e Meio Ambiente, Divisao de Quimica Ambiental |
| NMB | Gobabeb | Namibia | -23.580 | 15.030 | 456.0 | +1 hours | Gobabeb Training and Research Center |
| NWF* | Niwot Ridge Forest, Colorado | United States | 40.030 | -105.550 | 3050.0 | -7 hours | University of Colorado/INSTAAR |
| NWR | Niwot Ridge, Colorado | United States | 40.053 | -105.586 | 3523.0 | -7 hours | University of Colorado/INSTAAR |
| NZL* | Kaitorete Spit | New Zealand | -43.830 | 172.630 | 3.0 | +12 hours | U.S. National Center for Atmospheric Research |
| OPW* | Olympic Peninsula, Washington | United States | 48.300 | -124.628 | 486.0 | -8 hours | University of Washington |
| OXK | Ochsenkopf | Germany | 50.030 | 11.808 | 1009.0 | +1 hours | Max Planck Institute for Biogeochemistry |
| PAL | Pallas-Sammaltunturi, GAW Station | Finland | 67.970 | 24.120 | 560.0 | +2 hours | Finnish Meteorological Institute |
| PCO* | Pico, Azores | Portugal | 38.470 | -28.400 | 2225.0 | -1 hours | |
| POCN00 | Pacific Ocean (0 N) | N/A | 0.000 | -155.000 | 10.0 | ||
| POCN05 | Pacific Ocean (5 N) | N/A | 5.000 | -151.000 | 10.0 | ||
| POCN10 | Pacific Ocean (10 N) | N/A | 10.000 | -149.000 | 10.0 | ||
| POCN15 | Pacific Ocean (15 N) | N/A | 15.000 | -145.000 | 10.0 | ||
| POCN20 | Pacific Ocean (20 N) | N/A | 20.000 | -141.000 | 10.0 | ||
| POCN25 | Pacific Ocean (25 N) | N/A | 25.000 | -139.000 | 10.0 | ||
| POCN30 | Pacific Ocean (30 N) | N/A | 30.000 | -135.000 | 10.0 | ||
| POCN35* | Pacific Ocean (35 N) | N/A | 35.000 | -137.000 | 10.0 | ||
| POCN40* | Pacific Ocean (40 N) | N/A | 40.000 | -136.000 | 10.0 | ||
| POCN45* | Pacific Ocean (45 N) | N/A | 45.000 | -131.000 | 10.0 | ||
| POCS05 | Pacific Ocean (5 S) | N/A | -5.000 | -159.000 | 10.0 | ||
| POCS10 | Pacific Ocean (10 S) | N/A | -10.000 | -161.000 | 10.0 | ||
| POCS15 | Pacific Ocean (15 S) | N/A | -15.000 | -171.000 | 10.0 | ||
| POCS20 | Pacific Ocean (20 S) | N/A | -20.000 | -174.000 | 10.0 | ||
| POCS25 | Pacific Ocean (25 S) | N/A | -25.000 | -171.000 | 10.0 | ||
| POCS30 | Pacific Ocean (30 S) | N/A | -30.000 | -176.000 | 10.0 | ||
| POCS35* | Pacific Ocean (35 S) | N/A | -35.000 | 180.000 | 10.0 | ||
| PSA | Palmer Station, Antarctica | United States | -64.920 | -64.000 | 10.0 | -3 hours | National Science Foundation |
| PSM* | Point Six Mountain, Montana | United States | 47.030 | -113.980 | 2462.0 | -7 hours | U.S. National Weather Service |
| PTA* | Point Arena, California | United States | 38.955 | -123.741 | 17.0 | -8 hours | Point Arena Lighthouse Keepers, Inc. |
| RPB | Ragged Point | Barbados | 13.165 | -59.432 | 15.0 | -4 hours | Private Party |
| SCSN03* | South China Sea (3 N) | N/A | 3.000 | 105.000 | 15.0 | ||
| SCSN06* | South China Sea (6 N) | N/A | 6.000 | 107.000 | 15.0 | ||
| SCSN09* | South China Sea (9 N) | N/A | 9.000 | 109.000 | 15.0 | ||
| SCSN12* | South China Sea (12 N) | N/A | 12.000 | 111.000 | 15.0 | ||
| SCSN15* | South China Sea (15 N) | N/A | 15.000 | 113.000 | 15.0 | ||
| SCSN18* | South China Sea (18 N) | N/A | 18.000 | 113.500 | 15.0 | ||
| SCSN21* | South China Sea (21 N) | N/A | 21.000 | 114.000 | 15.0 | ||
| SCT | Beech Island, South Carolina | United States | 33.406 | -81.833 | 115.2 | -5 hours | Savannah River National Laboratory, DOE; Savannah River National Laboratory and University of Georgia |
| SDZ* | Shangdianzi | Peoples Republic of China | 40.650 | 117.117 | 293.0 | +8 hours | Chinese Academy of Meteorological Sciences (CAMS) and Beijing Meteorological Bureau (BMB), China Meteorological Administration (CMA) |
| SEY | Mahe Island | Seychelles | -4.682 | 55.532 | 2.0 | +4 hours | Seychelles Bureau of Standards |
| SGI* | Bird Island, South Georgia | United Kingdom | -54.000 | -38.050 | 30.0 | -3 hours | British Antarctic Survey |
| SGP | Southern Great Plains, Oklahoma | United States | 36.607 | -97.489 | 314.0 | -6 hours | Lawrence Berkeley National Laboratory |
| SHM | Shemya Island, Alaska | United States | 52.711 | 174.126 | 23.0 | -10 hours | Chugach McKinley |
| SIO* | La Jolla, California | United States | 32.830 | -117.270 | 14.0 | -8 hours | Scripps Institution of Oceanography (SIO) |
| SMO | Tutuila | American Samoa | -14.247 | -170.564 | 42.0 | -11 hours | NOAA Earth System Research Laboratory, Global Monitoring Division |
| SPO | South Pole, Antarctica | United States | -89.980 | -24.800 | 2810.0 | +12 hours | National Science Foundation |
| STC* | Ocean Station C | United States | 54.000 | -35.000 | 6.0 | U.S. National Weather Service | |
| STM* | Ocean Station M | Norway | 66.000 | 2.000 | 0.0 | +0 hours | Norway Meteorological Institute |
| STR | Sutro Tower, San Francisco, California | United States | 37.755 | -122.452 | 254.0 | -8 hours | Lawrence Berkeley National Laboratory |
| SUM | Summit | Greenland | 72.596 | -38.422 | 3209.5 | -2 hours | National Science Foundation Office of Polar Programs |
| SYO | Syowa Station, Antarctica | Japan | -69.013 | 39.590 | 14.0 | +3 hours | National Institute of Polar Research |
| TAC* | Tacolneston | United Kingdom | 52.518 | 1.139 | 56.0 | +0 hours | University of Bristol |
| TAP | Tae-ahn Peninsula | Republic of Korea | 36.738 | 126.133 | 16.0 | +9 hours | Korea Centre for Atmospheric Environment Research |
| THD | Trinidad Head, California | United States | 41.054 | -124.151 | 107.0 | -8 hours | Scientific Aviation, Inc; NOAA Earth System Research Laboratory, Global Monitoring Division |
| TIK | Hydrometeorological Observatory of Tiksi | Russia | 71.597 | 128.889 | 31.0 | ||
| USH | Ushuaia | Argentina | -54.848 | -68.311 | 12.0 | -4 hours | Servicio Meteorologico Nacional |
| UTA | Wendover, Utah | United States | 39.902 | -113.718 | 1327.0 | -7 hours | Beth Anderson/ NWS Cooperative Observer |
| UUM | Ulaan Uul | Mongolia | 44.452 | 111.096 | 1007.0 | +8 hours | Mongolian Hydrometeorological Research Institute |
| WBI | West Branch, Iowa | United States | 41.725 | -91.353 | 241.7 | -6 hours | M & M Aviation Services, Ltd.; University of Iowa |
| WGC | Walnut Grove, California | United States | 38.265 | -121.491 | 0.0 | -8 hours | Lawrence Berkeley National Laboratory; DOE Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory; KalScott Engineering |
| WIS | Weizmann Institute of Science at the Arava Institute, Ketura | Israel | 29.965 | 35.060 | 151.0 | +2 hours | Weizmann Institute of Science and Arava Institute for Environmental Studies |
| WKT | Moody, Texas | United States | 31.315 | -97.327 | 251.0 | -6 hours | Blackland Research and Extension Center-Texas Agricultural Experiment Station; Pinnacle Towers Inc. |
| WLG | Mt. Waliguan | Peoples Republic of China | 36.288 | 100.896 | 3810.0 | +8 hours | Chinese Academy of Meteorological Sciences (CAMS) and Qinghai Meteorological Bureau (QMB), China Meteorological Administration (CMA) |
| WPCN00* | Western Pacific Cruise (0 N) | N/A | 0.000 | 151.100 | 0.0 | ||
| WPCN05* | Western Pacific Cruise (5 N) | N/A | 5.000 | 149.100 | 0.0 | ||
| WPCN10* | Western Pacific Cruise (10 N) | N/A | 10.000 | 148.000 | 0.0 | ||
| WPCN15* | Western Pacific Cruise (15 N) | N/A | 15.000 | 145.000 | 0.0 | ||
| WPCN20* | Western Pacific Cruise (20 N) | N/A | 20.000 | 142.000 | 0.0 | ||
| WPCN25* | Western Pacific Cruise (25 N) | N/A | 25.000 | 140.000 | 0.0 | ||
| WPCN30* | Western Pacific Cruise (30 N) | N/A | 30.000 | 136.800 | 0.0 | ||
| WPCS05* | Western Pacific Cruise (5 S) | N/A | -5.000 | 153.700 | 0.0 | ||
| WPCS10* | Western Pacific Cruise (10 S) | N/A | -10.000 | 156.800 | 0.0 | ||
| WPCS15* | Western Pacific Cruise (15 S) | N/A | -15.000 | 159.300 | 0.0 | ||
| WPCS20* | Western Pacific Cruise (20 S) | N/A | -20.000 | 161.100 | 0.0 | ||
| WPCS25* | Western Pacific Cruise (25 S) | N/A | -25.000 | 165.500 | 0.0 | ||
| WPCS30* | Western Pacific Cruise (30 S) | N/A | -30.000 | 168.000 | 0.0 | ||
| ZEP | Ny-Alesund, Svalbard | Norway and Sweden | 78.907 | 11.888 | 474.0 | +1 hours | Zeppelin Station/University of Stockholm Meteorological Institute |