The Reference Network is a part of NOAA's Earth System Research Laboratory in Boulder, Colorado. The measurement programs include:

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Yellow symbols indicate discontinued sites


84 active sites in 38 countries
Code Name Country Latitude Longitude Elevation (meters) Time from GMT Project Cooperating Agency
ACG Alaska Coast Guard United States 65.000 -165.000 0.0 -8 hours United States Coast Guard, Air Station Kodiak Airborne Flasks
ALT Alert, Nunavut Canada 82.451 -62.507 190.0 -4 hours Environment Canada Surface Flasks
AMT Argyle, Maine United States 45.035 -68.682 53.0 -5 hours University of Maine Surface Flasks
In Situ Tall Tower
AMY Anmyeon-do Republic of Korea 36.539 126.329 85.1 +9 hours Korea Global Atmosphere Watch Center, Korea Meteorological Administration Surface Flasks
ASC Ascension Island United Kingdom -7.967 -14.400 85.0 -1 hours Met Office (United Kingdom) Surface Flasks
ASK Assekrem Algeria 23.262 5.632 2710.0 +1 hours Office National de la Meteorologie Surface Flasks
AZR Terceira Island, Azores Portugal 38.766 -27.375 19.0 -1 hours Instituto Nacional de Meteorologia e Geofisica Surface Flasks
BHD Baring Head Station New Zealand -41.408 174.871 85.0 +12 hours National Institute of Water and Atmospheric Research Surface Flasks
BKT Bukit Kototabang Indonesia -0.202 100.318 845.0 +7 hours Bureau of Meteorology and Geophysics Surface Flasks
BMW Tudor Hill, Bermuda United Kingdom 32.265 -64.879 30.0 -4 hours Bermuda Institute of Ocean Sciences Surface Flasks
BRW Barrow, Alaska United States 71.323 -156.611 11.0 -9 hours NOAA Earth System Research Laboratory, Global Monitoring Division Surface Flasks
In Situ Observatory
CAR Briggsdale, Colorado United States 40.635 -104.327 1488.0 -7 hours Weisbart Aircraft Services Airborne Flasks
CBA Cold Bay, Alaska United States 55.210 -162.720 21.3 -9 hours U.S. National Weather Service Surface Flasks
CGO Cape Grim, Tasmania Australia -40.683 144.690 94.0 +10 hours CSIRO, Atmospheric Research Surface Flasks
CHR Christmas Island Republic of Kiribati 1.700 -157.152 0.0 -10 hours Dive Kiribati Surface Flasks
CHS Cherskii Russia 68.513 161.531 30.0 +11 hours Surface In Situ
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 Surface Flasks
CMA Cape May, New Jersey United States 38.830 -74.320 0.0 -5 hours AirTec, Inc Airborne Flasks
CPT Cape Point South Africa -34.352 18.489 230.0 +2 hours South African Weather Service Surface Flasks
CRV Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) United States 64.986 -147.598 611.4 -8 hours NASA Terrestrial Ecology Program; NOAA/NESDIS/OSPO/FCDAS Surface Flasks
Airborne Flasks*
In Situ Tall Tower
CRZ Crozet Island France -46.434 51.848 197.0 +5 hours Centre des Faibles Radioactivities/TAAF Surface Flasks
DND Dahlen, North Dakota United States 47.500 -99.240 472.4 -6 hours FARGO JET CENTER Airborne Flasks
DRP Drake Passage N/A -59.000 -64.690 0.0 -4 hours National Science Foundation Surface Flasks
DSI Dongsha Island Taiwan 20.699 116.730 3.0 +8 hours National Central University, Taiwan Surface Flasks
EIC Easter Island Chile -27.160 -109.428 47.0 -7 hours Direccion Meteorologica de Chile Surface Flasks
ESP Estevan Point, British Columbia Canada 49.383 -126.544 7.0 -8 hours Private Party Airborne Flasks
ETL East Trout Lake, Saskatchewan Canada 54.350 -104.983 492.0 -6 hours Environment Canada Airborne Flasks
GMI Mariana Islands Guam 13.386 144.656 0.0 +10 hours University of Guam/Marine Laboratory Surface Flasks
HBA Halley Station, Antarctica United Kingdom -75.605 -26.210 30.0 -2 hours British Antarctic Survey Surface Flasks
HIL Homer, Illinois United States 40.070 -87.910 201.5 -6 hours M & M Aviation Services, Ltd. Airborne Flasks
HPB Hohenpeissenberg Germany 47.801 11.024 936.0 +1 hours Deutscher Wetterdienst Surface Flasks
HUN Hegyhatsal Hungary 46.950 16.650 248.0 +1 hours Hungarian Meteorological Service Surface Flasks
ICE Storhofdi, Vestmannaeyjar Iceland 63.400 -20.288 118.0 +0 hours Icelandic Meteorological Office Surface Flasks
INX INFLUX (Indianapolis Flux Experiment) United States 39.581 -86.421 256.3 -5 hours Purdue University Surface Flasks
Airborne Flasks
IZO Izana, Tenerife, Canary Islands Spain 28.309 -16.499 2372.9 +0 hours Izana Observatory/Meteorological State Agency of Spain Surface Flasks
KEY Key Biscayne, Florida United States 25.665 -80.158 1.0 -5 hours NOAA Atlantic Oceanographic and Meteorological Laboratory Surface Flasks
KUM Cape Kumukahi, Hawaii United States 19.520 -154.820 3.0 -10 hours NOAA Earth System Research Laboratory, Global Monitoring Division Surface Flasks
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 Surface Flasks
Airborne Flasks
In Situ Tall Tower
LEW Lewisburg, Pennsylvania United States 40.945 -76.879 161.0 -5 hours Earth Networks, Inc. Surface Flasks
LLN Lulin Taiwan 23.470 120.870 2862.0 +8 hours Lulin Atmospheric Background Station Surface Flasks
LMP Lampedusa Italy 35.520 12.620 45.0 +2 hours Ente per le Nuove tecnologie, l’Energia e l’Ambiente Surface Flasks
MBO Mt. Bachelor Observatory United States 43.977 -121.686 2731.0 -8 hours University of Washington Surface Flasks
Surface In Situ
MEX High Altitude Global Climate Observation Center Mexico 18.984 -97.311 4464.0 -6 hours Sistema Internacional de Monitoreo Ambiental Surface Flasks
MHD Mace Head, County Galway Ireland 53.326 -9.899 5.0 +0 hours National University of Ireland, Galway Surface Flasks
MID Sand Island, Midway United States 28.210 -177.380 11.0 -11 hours U.S. Fish and Wildlife Service Surface Flasks
MLO Mauna Loa, Hawaii United States 19.536 -155.576 3397.0 -10 hours NOAA Earth System Research Laboratory, Global Monitoring Division Surface Flasks
In Situ Observatory
MRC Marcellus Pennsylvania United States 41.466 -76.419 652.0 -5 hours Penn State University Surface Flasks
MSH Mashpee, Massachusetts United States 41.657 -70.497 32.3 -5 hours Earth Networks Surface Flasks
MWO Mt. Wilson Observatory United States 34.225 -118.059 1728.0 -8 hours UCLA Astrophysics/Solar Observatory Surface Flasks
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 Surface Flasks
NHA Worcester, Massachusetts United States 42.950 -70.630 0.0 -5 hours Private Party Airborne Flasks
NMB Gobabeb Namibia -23.580 15.030 456.0 +1 hours Gobabeb Training and Research Center Surface Flasks
NWR Niwot Ridge, Colorado United States 40.053 -105.586 3523.0 -7 hours University of Colorado/INSTAAR Surface Flasks
OXK Ochsenkopf Germany 50.030 11.808 1022.0 +1 hours Max Planck Institute for Biogeochemistry Surface Flasks
PAL Pallas-Sammaltunturi, GAW Station Finland 67.973 24.116 565.0 +2 hours Finnish Meteorological Institute Surface Flasks
PFA Poker Flat, Alaska United States 65.070 -147.290 210.0 -9 hours Warbelows Air Ventures, Inc. Airborne Flasks
PSA Palmer Station, Antarctica United States -64.920 -64.000 10.0 -3 hours National Science Foundation Surface Flasks
RPB Ragged Point Barbados 13.165 -59.432 15.0 -4 hours Private Party Surface Flasks
RTA Rarotonga Cook Islands -21.250 -159.830 3.0 -10 hours Air Rarotonga LTD. Airborne Flasks
SCA Charleston, South Carolina United States 32.770 -79.550 0.0 -5 hours Orion Aviation Airborne Flasks
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 Surface Flasks
In Situ Tall Tower
SEY Mahe Island Seychelles -4.682 55.532 2.0 +4 hours Seychelles Bureau of Standards Surface Flasks
SGP Southern Great Plains, Oklahoma United States 36.607 -97.489 314.0 -6 hours Lawrence Berkeley National Laboratory Surface Flasks
Airborne Flasks
SHM Shemya Island, Alaska United States 52.711 174.126 23.0 -10 hours Chugach McKinley Surface Flasks
SMO Tutuila American Samoa -14.247 -170.564 42.0 -11 hours NOAA Earth System Research Laboratory, Global Monitoring Division Surface Flasks
In Situ Observatory
SNP Shenandoah National Park United States 38.617 -78.350 1008.0 -5 hours University of Virginia, Department of Environmental Sciences Surface In Situ
SPO South Pole, Antarctica United States -89.980 -24.800 2810.0 +12 hours National Science Foundation Surface Flasks
In Situ Observatory
STR Sutro Tower, San Francisco, California United States 37.755 -122.452 254.0 -8 hours Lawrence Berkeley National Laboratory Surface Flasks
SUM Summit Greenland 72.596 -38.422 3209.5 -2 hours National Science Foundation Office of Polar Programs Surface Flasks
SYO Syowa Station, Antarctica Japan -69.013 39.590 14.0 +3 hours National Institute of Polar Research Surface Flasks
TAP Tae-ahn Peninsula Republic of Korea 36.738 126.133 16.0 +9 hours Korea Centre for Atmospheric Environment Research Surface Flasks
TGC Sinton, Texas United States 27.730 -96.860 0.0 -6 hours Skypark Aviation Airborne Flasks
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 Surface Flasks*
Airborne Flasks
TIK Hydrometeorological Observatory of Tiksi Russia 71.597 128.889 19.0 Surface Flasks
TMD Thurmont, Maryland United States 39.577 -77.488 561.0 -5 hours NIST and Earth Networks Surface Flasks
USH Ushuaia Argentina -54.848 -68.311 12.0 -4 hours Servicio Meteorologico Nacional Surface Flasks
UTA Wendover, Utah United States 39.902 -113.718 1327.0 -7 hours Beth Anderson/ NWS Cooperative Observer Surface Flasks
UUM Ulaan Uul Mongolia 44.452 111.096 1007.0 +8 hours Mongolian Hydrometeorological Research Institute Surface Flasks
WBI West Branch, Iowa United States 41.725 -91.353 241.7 -6 hours M & M Aviation Services, Ltd.; University of Iowa Surface Flasks
Airborne Flasks
In Situ Tall Tower
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 Surface Flasks
Airborne Flasks*
In Situ Tall Tower
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 Surface Flasks
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. Surface Flasks
In Situ Tall Tower
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) Surface Flasks
ZEP Ny-Alesund, Svalbard Norway and Sweden 78.907 11.888 474.0 +1 hours Zeppelin Station/University of Stockholm Meteorological Institute Surface Flasks