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

Filter results by selecting the projects to display:








Yellow symbols indicate discontinued sites


49 sites in 17 countries
Code Name Country Latitude Longitude Elevation (meters) Time from GMT Project
AAO* Airborne Aerosol Observing, Bondville, Illinois United States 40.050 -88.370 230.0 -6 hours Ozone Airborne*
ARH Arrival Heights, Antarctica New Zealand -77.833 166.200 250.0 -11 hours Surface Ozone
BAO Boulder Atmospheric Observatory, Colorado United States 40.050 -105.004 1584.0 -7 hours Surface Ozone
Ozone In Situ Tall Tower
BGI* Bradgate, Iowa United States 42.820 -94.410 355.1 -6 hours Ozone Airborne*
BIS Bismarck, North Dakota United States 46.772 -100.760 511.0 -6 hours Dobson Total Ozone
BLD Boulder, Colorado United States 39.991 -105.261 1628.0 -7 hours Dobson Total Ozone
Water Vapor Profiles
Ozonesonde
BMW Tudor Hill, Bermuda United Kingdom 32.265 -64.879 30.0 -4 hours Surface Ozone
BNA Nashville, Tennessee United States 36.247 -86.562 182.0 -6 hours Dobson Total Ozone
BNE* Beaver Crossing, Nebraska United States 40.800 -97.180 465.9 -6 hours Ozone Airborne*
BRW Barrow, Alaska United States 71.323 -156.611 11.0 -9 hours Surface Ozone
Dobson Total Ozone
CAR Briggsdale, Colorado United States 40.370 -104.300 1740.0 -7 hours Ozone Airborne
CBM Caribou, Maine United States 46.868 -68.013 191.0 -5 hours Dobson Total Ozone
CMA Cape May, New Jersey United States 38.830 -74.320 0.0 -5 hours Ozone Airborne
ESP Estevan Point, British Columbia Canada 49.383 -126.544 7.0 -8 hours Ozone Airborne
FBK Fairbanks, Alaska United States 64.860 -147.850 133.0 -9 hours Dobson Total Ozone
Dobson Umkehr Ozone
FWI* Fairchild, Wisconsin United States 44.660 -90.960 334.3 -6 hours Ozone Airborne*
HIH Hilo, Hawaii United States 19.717 -155.049 11.0 +10 hours Water Vapor Profiles
Ozonesonde
HIL Homer, Illinois United States 40.070 -87.910 201.5 -6 hours Ozone Airborne
HNX Hanford, California United States 36.314 -119.632 73.0 -8 hours Dobson Total Ozone
HUA* Huancayo Peru -12.050 -75.320 0.0 +5 hours Dobson Total Ozone*
HVA Huntsville, Alabama United States 34.720 -86.640 0.0 +5 hours Ozonesonde
ICE Storhofdi, Vestmannaeyjar Iceland 63.400 -20.288 118.0 +0 hours Surface Ozone
LDR Lauder New Zealand -45.040 169.680 370.0 +12 hours Surface Ozone
Dobson Total Ozone
Water Vapor Profiles
Ozonesonde
Dobson Umkehr Ozone
MLO Mauna Loa, Hawaii United States 19.536 -155.576 3397.0 -10 hours Surface Ozone
Dobson Total Ozone
Dobson Umkehr Ozone
MPO Maracompoche Peru -11.400 -76.320 4500.0 -5 hours Dobson Total Ozone
NHA Worcester, Massachusetts United States 42.950 -70.630 0.0 -5 hours Ozone Airborne
NRI Narragansett, Rhode Island United States 41.490 -71.420 21.0 +0 hours Ozonesonde
NWR Niwot Ridge, Colorado United States 40.053 -105.586 3523.0 -7 hours Surface Ozone
OHP Haute Provence France 43.917 5.750 580.0 +1 hours Dobson Total Ozone
Dobson Umkehr Ozone
OIL* Oglesby, Illinois United States 41.280 -88.940 192.6 -6 hours Ozone Airborne*
PCO Pico, Azores Portugal 38.470 -28.400 2225.0 -1 hours Surface Ozone
PTH Perth Australia -31.917 115.967 5.0 -8 hours Dobson Total Ozone
Dobson Umkehr Ozone
RPB Ragged Point Barbados 13.165 -59.432 15.0 -4 hours Surface Ozone
Ozonesonde
SCA Charleston, South Carolina United States 32.770 -79.550 0.0 -5 hours Ozone Airborne
SCE Santa Cristobal Ecuador -2.000 -77.500 0.0 Ozonesonde
SCR San Jose Costa Rica 9.980 -84.210 899.0 +0 hours Ozonesonde
SGP Southern Great Plains, Oklahoma United States 36.607 -97.489 314.0 -6 hours Ozone Airborne
SMO Tutuila American Samoa -14.247 -170.564 42.0 -11 hours Surface Ozone
Dobson Total Ozone
Ozonesonde
SPO South Pole, Antarctica United States -89.980 -24.800 2810.0 +12 hours Surface Ozone
Dobson Total Ozone
Ozonesonde
SUM Summit Greenland 72.596 -38.422 3209.5 -2 hours Surface Ozone
Ozonesonde
SUV Suva Fiji -18.000 178.000 0.0 Ozonesonde
TAL* Tallahassee, Florida United States 30.430 -84.330 53.0 -5 hours Dobson Total Ozone*
THD Trinidad Head, California United States 41.054 -124.151 107.0 -8 hours Surface Ozone
Ozonesonde
Ozone Airborne
TIK Hydrometeorological Observatory of Tiksi Russia 71.597 128.889 31.0 Surface Ozone
ULB* Ulaanbaatar Mongolia 47.400 106.000 1350.0 +8 hours Ozone Airborne*
WAI Wallops Island, Virginia United States 37.860 -75.510 13.0 -5 hours Dobson Total Ozone
WBI West Branch, Iowa United States 41.725 -91.353 241.7 -6 hours Ozone Airborne
WKT Moody, Texas United States 31.315 -97.327 251.0 -6 hours Surface Ozone
Ozone In Situ Tall Tower
WVR Weaverville, California United States 40.731 -122.942 613.0 -8 hours Surface Ozone
* - Indicates discontinued site or project