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58 sites in 11 countries

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Code Name Country Latitude Longitude Elevation (meters) Time from GMT Project
AAO* Airborne Aerosol Observatory, Bondville, Illinois United States 40.050 -88.370 230.0 -6 hours Trace gases from GGGRN Airborne Flasks*
ACG Alaska Coast Guard United States 57.737 -152.504 6.0 -8 hours Trace gases from GGGRN Airborne Flasks
ALT Alert, Nunavut Canada 82.451 -62.507 190.0 -4 hours HATS Flask Sampling
AMT Argyle, Maine United States 45.035 -68.682 53.0 -5 hours Trace gases from GGGRN Surface Flasks
BAO* Boulder Atmospheric Observatory, Colorado United States 40.050 -105.004 1584.0 -7 hours Trace gases from GGGRN Surface Flasks*
Trace gases from GGGRN Airborne Flasks*
BGI* Bradgate, Iowa United States 42.820 -94.410 355.1 -6 hours Trace gases from GGGRN Airborne Flasks*
BNE* Beaver Crossing, Nebraska United States 40.800 -97.180 465.9 -6 hours Trace gases from GGGRN Airborne Flasks*
BRW Barrow Atmospheric Baseline Observatory United States 71.323 -156.611 11.0 -9 hours HATS In Situ Observatory
HATS Flask Sampling
BWD Brentwood, Maryland United States 38.934 -76.956 16.8 -5 hours Trace gases from GGGRN Surface Flasks
CAR Briggsdale, Colorado United States 40.635 -104.327 1488.0 -7 hours Trace gases from GGGRN Airborne Flasks
CGO Cape Grim, Tasmania Australia -40.683 144.690 94.0 +10 hours HATS Flask Sampling
CMA Offshore Cape May, New Jersey United States 38.830 -74.320 0.0 -5 hours Trace gases from GGGRN Airborne Flasks
CRV Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) United States 64.986 -147.598 611.4 -8 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks*
DND* Dahlen, North Dakota United States 47.500 -99.240 472.4 -6 hours Trace gases from GGGRN Airborne Flasks*
ESP Estevan Point, British Columbia Canada 49.383 -126.544 7.0 -8 hours Trace gases from GGGRN Airborne Flasks
ETL East Trout Lake, Saskatchewan Canada 54.354 -104.987 492.0 -6 hours Trace gases from GGGRN Airborne Flasks
FWI* Fairchild, Wisconsin United States 44.660 -90.960 334.3 -6 hours Trace gases from GGGRN Airborne Flasks*
HAA* Molokai Island, Hawaii United States 21.230 -158.950 3.0 -10 hours Trace gases from GGGRN Airborne Flasks*
HFM Harvard Forest, Massachusetts United States 42.538 -72.171 340.0 -5 hours Trace gases from GGGRN Airborne Flasks*
HATS Flask Sampling
HIL Homer, Illinois United States 40.070 -87.910 201.5 -6 hours Trace gases from GGGRN Airborne Flasks
INX INFLUX (Indianapolis Flux Experiment) United States 39.581 -86.421 -5 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks
KUM Cape Kumukahi, Hawaii United States 19.737 -155.012 0.3 -10 hours HATS Flask Sampling
LAC* LA Megacities United States 34.000 -118.200 100.0 -8 hours Trace gases from GGGRN Surface Flasks*
LEF Park Falls, Wisconsin United States 45.945 -90.273 472.0 -6 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks
HATS Flask Sampling
LEW Lewisburg, Pennsylvania United States 40.945 -76.879 161.0 -5 hours Trace gases from GGGRN Surface Flasks
MBO Mt. Bachelor Observatory United States 43.977 -121.686 2731.0 -8 hours Trace gases from GGGRN Surface Flasks
MHD Mace Head, County Galway Ireland 53.326 -9.899 5.0 +0 hours HATS Flask Sampling
MLO Mauna Loa, Hawaii United States 19.536 -155.576 3397.0 -10 hours HATS In Situ Observatory
HATS Flask Sampling
MRC Marcellus Pennsylvania United States 41.466 -76.419 592.0 -5 hours Trace gases from GGGRN Surface Flasks
MSH Mashpee, Massachusetts United States 41.657 -70.497 32.3 -5 hours Trace gases from GGGRN Surface Flasks
MVY* Marthas Vineyard, Massachusetts United States 41.325 -70.567 0.0 -5 hours Trace gases from GGGRN Surface Flasks*
MWO Mt. Wilson Observatory United States 34.225 -118.059 1728.0 -8 hours Trace gases from GGGRN Surface Flasks
NEB NE Baltimore, Maryland United States 39.315 -76.583 44.0 -5 hours Trace gases from GGGRN Surface Flasks
NHA Offshore Portsmouth, New Hampshire (Isles of Shoals) United States 42.950 -70.630 0.0 -5 hours Trace gases from GGGRN Airborne Flasks
NWB NW Baltimore United States 39.344 -76.685 135.0 -5 hours Trace gases from GGGRN Surface Flasks
NWF* Niwot Ridge Forest, Colorado United States 40.030 -105.550 3050.0 -7 hours Trace gases from GGGRN Surface Flasks*
NWR Niwot Ridge, Colorado United States 40.053 -105.586 3523.0 -7 hours Trace gases from GGGRN Surface Flasks
HATS In Situ Observatory
HATS Flask Sampling
OIL* Oglesby, Illinois United States 41.280 -88.940 192.6 -6 hours Trace gases from GGGRN Airborne Flasks*
PFA Poker Flat, Alaska United States 64.900 -148.760 210.0 -9 hours Trace gases from GGGRN Airborne Flasks
PSA Palmer Station, Antarctica United States -64.920 -64.000 10.0 -3 hours HATS Flask Sampling
RTA Rarotonga Cook Islands -21.250 -159.830 3.0 -10 hours Trace gases from GGGRN Airborne Flasks
SCA Offshore Charleston, South Carolina United States 32.770 -79.550 0.0 -5 hours Trace gases from GGGRN Airborne Flasks
SCT Beech Island, South Carolina United States 33.406 -81.833 115.2 -5 hours Trace gases from GGGRN Surface Flasks
SGP Southern Great Plains, Oklahoma United States 36.607 -97.489 314.0 -6 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks
SMO Tutuila American Samoa -14.247 -170.564 42.0 -11 hours HATS In Situ Observatory
HATS Flask Sampling
SPO South Pole, Antarctica United States -89.980 -24.800 2810.0 +12 hours HATS In Situ Observatory
HATS Flask Sampling
STR Sutro Tower, San Francisco, California United States 37.755 -122.452 254.0 -8 hours Trace gases from GGGRN Surface Flasks
SUM Summit Greenland 72.596 -38.422 3209.5 -2 hours HATS In Situ Observatory*
HATS Flask Sampling
TGC Offshore Corpus Christi, Texas United States 27.730 -96.860 0.0 -6 hours Trace gases from GGGRN Airborne Flasks
THD Trinidad Head, California United States 41.054 -124.151 107.0 -8 hours Trace gases from GGGRN Surface Flasks*
Trace gases from GGGRN Airborne Flasks
HATS Flask Sampling
TMD Thurmont, Maryland United States 39.577 -77.488 561.0 -5 hours Trace gases from GGGRN Surface Flasks
ULB* Ulaanbaatar Mongolia 47.400 106.000 1350.0 +8 hours Trace gases from GGGRN Airborne Flasks*
USH* Ushuaia Argentina -54.848 -68.311 12.0 -4 hours HATS Flask Sampling*
WBI West Branch, Iowa United States 41.725 -91.353 241.7 -6 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks
WGC Walnut Grove, California United States 38.265 -121.491 0.0 -8 hours Trace gases from GGGRN Surface Flasks
Trace gases from GGGRN Airborne Flasks*
WIS Weizmann Institute of Science at the Arava Institute, Ketura Israel 29.965 35.060 151.0 +2 hours Trace gases from GGGRN Surface Flasks
WKT Moody, Texas United States 31.315 -97.327 251.0 -6 hours Trace gases from GGGRN Surface Flasks
WLG* Mt. Waliguan Peoples Republic of China 36.288 100.896 3810.0 +8 hours Trace gases from GGGRN Surface Flasks*
* - Indicates discontinued site or project