This page displays information on stations that either receive (part-) funding or are included in the network harmonization or research activities within GEOmon project. For each station, we indicate the networks and projects that either provide (part-)funding or to which the station just delivers data.
To search and download atmospheric composition data from the stations
across the networks listed here,
go to the GEOmon data centre at NILU.
Select among the parameters below see the station location, further information can be found below the map.
| Station | GAW station report | Longitude (°E) | Latitude (°N) | Altitude (m) a.s.l. | Rapid Delivery | Network |
| Aberystwyth | NA | -4.2 | 52.4 | O3, NO2, Colour Index | NDACC | |
| Agoufou | -1.47 | 15.33 | 305 | AERONET/PHOTONS | ||
| Ähtäri II | 24.18 | 62.35 | 180 | EMEP | ||
| Alert | ALT | -63.52 | 82.5 | 210 | GAW-WDCGG, RAMCES | |
| Alomar | ARR | 16.01 | 69.17 | 380 | AERONET, EARLINET, NDACC | |
| Amsterdam Island | AMS | 77.57 | -37.81 | 30 | GAW-WDCGG, AERONET, GAW-WDCA, GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | |
| Andoya | ARR | 16.01 | 69.17 | 380 | PSC, O3,NO2 | NDACC |
| Angra do Heoismo | -26.78 | 38.67 | 74 | GAW-WDCA, EMEP | ||
| Angus | 2.59 | 56.33 | 313 | ICOS-CARBOEUROPE-GEOmon-IMECC | ||
| Anholt | 11.52 | 56.72 | 40 | EMEP, CAMP, HELCOM | ||
| Arrival Heights | ARH | 166.78 | -77.8 | 200 | BrO, NO2, HCl, ClONO2, ftp://ftp.cpc.ncep.noaa.gov/ndacc/station/ | GAW-WDCGG, NDACC |
| Ascension Island | ASC | -14.4 | -7.55 | 90 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, GAW-WOUDC | |
| Aspvreten | ASP | 17.23 | 58.48 | 20 | EUSAAR, EMEP | |
| Athens | NA | 23.04 | 37.55 | 130 | AERONET, EARLINET, GAW-WOUDC | |
| Auchencorth Moss | -3.14 | 55.47 | 260 | EMEP | ||
| Avignon | 4.53 | 43.56 | 32 | AERONET/PHOTONS | ||
| Banizoumbou | 2.66 | 13.54 | 250 | AERONET/PHOTONS | ||
| Barcarrota | -6.55 | 38.28 | 393 | EMEP | ||
| Barcelona | 2.15 | 41.02 | 125 | EARLINET, AERONET | ||
| Barcombe Mills | 50.52 | 50.52 | 8 | EMEP | ||
| Bauru | NA | -49 | -22.3 | 300 | O3,NO2 | NDACC |
| Begur | 3.33 | 41.83 | ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | |||
| Beijing | 116.38 | 39.98 | 92 | AERONET/PHOTONS | ||
| Belgrano | NA | -35 | -78 | NO2 | GAW-WOUDC | |
| Belsk | COG | 20.8 | 51.8 | 190 | EARLINET, AERONET | |
| BEO Moussala | 23.35 | 42.11 | 2925 | EUSAAR | ||
| Berezinsky reserve | 28.58 | 55.22 | 174 | GAW-WDCA | ||
| Bern | BRN | 8 | 47 | 550 | H2O | NDACC |
| Bialystok | 22.27 | 53.2 | 180 | CO2 | ICOS-CARBOEUROPE-GEOmon-IMECC | |
| Bilthoven | 5.15 | 52.05 | 5 | EARLINET, GAW-WDCA | ||
| Birkenes | BIR | 8.25 | 58.38 | 190 | CAMP,EUSAAR, EMEP | |
| Biscarosse | -1.23 | 44.38 | 120 | RAMCES | ||
| Braganca | -6.46 | 41.49 | 690 | GAW-WDCA, EMEP | ||
| Bredkälen | BRE | 15.33 | 63.85 | 404 | AMAP,EMEP | |
| Bremen | 8.82 | 53.08 | NDACC, ICOS-CARBOEUROPE-GEOmon-IMECC | |||
| Brotjacklriegel | BRT | 13.13 | 48.49 | 1016 | GAW-WDCGG, EMEP | |
| Brussels | 4.21 | 50.47 | ||||
| Bucharest | NA | 26 | 44.03 | EARLINET, GAW-WOUDC | ||
| Cabauw | 4.92 | 51.97 | -7 | CO2 | AERONET/PHOTONS, EARLINET, GAW-WDCA,EMEP,EUSAAR, ICOS-CARBOEUROPE-GEOmon-IMECC | |
| Cabo da ROCa | -9.5 | 38.79 | 140 | AERONET/PHOTONS | ||
| Cabo de Creus | -3.19 | 42.32 | 23 | EMEP | ||
| Cabo Raso | -9.49 | 38.71 | 20 | AERONET | ||
| Caceres | -6.21 | 39.29 | 397 | AERONET/PHOTONS | ||
| Cairo EMA | 31.17 | 30.05 | 70 | AERONET | ||
| Cambisabalos | -3.08 | 41.27 | 1360 | EMEP | ||
| Cape Grim | CGO | 144.69 | -40.68 | 164 | GAW-WDCGG, RAMCES | |
| Cape Point | CPT | 18.49 | -34.35 | 230 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | |
| Capo Verde | -22.94 | 16.73 | 60 | AERONET/PHOTONS | ||
| Carnsore Point | -6.02 | 52.01 | 44 | EMEP | ||
| Carpentras | NA | 5.06 | 44.08 | 100 | AERONET/PHOTONS | |
| Castello Branco | -7.47 | 40.38 | 386 | GAW-WDCA | ||
| Chaumont | 6.58 | 47.02 | 1137 | EMEP | ||
| Chilbolton | -1.26 | 51.09 | 88 | AERONET | ||
| Chopok | NA | 19.58 | 48.93 | 2008 | GAW-WDCA, EMEP | |
| CinZana | -5.9 | 13.16 | 1978 | AERONET/PHOTONS | ||
| Cubuk II | 33.00 | 40.50 | 1169 | EMEP | ||
| Cyprus | 32.85 | 34.93 | ICOS-CARBOEUROPE-GEOmon-IMECC | |||
| Dakar | -16.96 | 14.39 | 0 | AERONET/PHOTONS | ||
| Danki | 37.80 | 54.90 | 150 | EMEP | ||
| Davos | 9.51 | 46.49 | 1596 | AERONET/PHOTONS | ||
| De Bilt | 5.30 | 52.17 | 2 | GAW-WDCA | ||
| Deuselbach | DEU | 7.05 | 49.75 | 480 | EMEP | |
| Diabla Gora | 22.07 | 54.15 | 157 | EMEP | ||
| Djougou | 1.58 | 9.75 | 400 | AERONET/PHOTONS | ||
| Dome Concordia | 123 | -75 | O3,NO2 | |||
| Donon | 7.133 | 48.5 | 775 | EMEP | ||
| Dumont D´Urville | 140 | -67 | 20 | PSC, O3,NO2 | NDACC | |
| Dunkerque | 2.22 | 51.02 | 0 | AERONET/PHOTONS | ||
| Egham | -0.6 | 51.33 | 50 | CO2, CH4 | ICOS-CARBOEUROPE-GEOmon-IMECC | |
| El Arenosillo | -6.44 | 37.06 | 0 | AERONET/PHOTONS | ||
| Els Torms | 0.43 | 41.23 | 23 | EMEP | ||
| Epanomi | 22.59 | 40.22 | ||||
| Eskdalemuir | EDM | -3.12 | 55.19 | 243 | EMEP | |
| Etna | 15.01 | 37.37 | 736 | AERONET | ||
| Evora | -7.9 | 38.57 | 293 | AERONET/PHOTONS | ||
| Faro | -7.58 | 37.1 | 8 | GAW-WDCA, EMEP | ||
| Finokalia | 23.05 | 38.22 | 250 | EUSAAR, EMEP, ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | ||
| Fontainebleau | 2.68 | 48.41 | 85 | AERONET/PHOTONS | ||
| Forth Crete | 25.17 | 35.2 | 20 | AERONET | ||
| Fundata | 25.3 | 45.47 | 1384 | GAW-WDCA | ||
| Garmisch-Partenkirchen | 11 | 47.35 | 730 | EARLINET, NDACC | ||
| Gif-sur-Yvette | 2.15 | 48.71 | 160 | CO2, CH4 | ICOS-CARBOEUROPE-GEOmon-IMECC,RAMCES | |
| Glen Dye | NA | -2.35 | 56.58 | 85 | EMEP | |
| Granada | -3.36 | 37.1 | 680 | AERONET, EARLINET | ||
| Griffin | NA | -2.98 | 56.55 | 600 | RAMCES | |
| GREENLAND, NORTH | 16.4 | 81.36 | 20 | AMAP | ||
| Gustav Dalen Tower | 17.28 | 58.36 | 25 | AERONET | ||
| Hamburg | 9.58 | 53.34 | 105 | EARLINET, AERONET | ||
| Hanle | 78.95 | 32.76 | 4517 | CO2 | ICOS-CARBOEUROPE-GEOmon-IMECC,RAMCES | |
| Hararre | 31 | -17.72 | ICOS-CARBOEUROPE-GEOmon-IMECC | |||
| Harestua | NA | 10.8 | 60.2 | 600 | aerosol OClO, BrO,NO2, O3, HCl, HF, HNO3, N2O, ClONO2, COF2, O3, NO2, HCClF2, CCl2F2, CH4, C2H6, CO | NDACC |
| Harwell | -1.19 | 51.34 | 137 | EUSAAR, EMEP | ||
| Hefei | 117.28 | 31.87 | AERONET/PHOTONS | |||
| Hegyhatsal | HUN | 16.65 | 46.95 | 248 | CO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES |
| Helgoland | 7.53 | 54.11 | 33 | AERONET | ||
| Helsinki_Lighthouse | 24.56 | 59.57 | 20 | AERONET | ||
| Heraklion | 25 | 35 | ||||
| High Muffles | NA | -0.48 | 54.2 | 267 | EMEP | |
| Hoburg | HOB | 18.09 | 56.55 | 58 | HELCOM, EMEP | |
| Hohenpeissenberg | HPB | 11.06 | 47.3 | 985 | GAW-WDCA, EMEP, EUSAAR, BREDOM, GAW-WDCGG, GAW-WOUDC and NDACC | |
| Hornsund | NA | 15.33 | 77 | 0 | AERONET | |
| Hurdal | 11.06 | 60.16 | 300 | EMEP | ||
| Hyytiälä | 24.17 | 61.51 | 181 | EUSAAR, EMEP | ||
| Ile Grande | -4.67 | 48.58 | 20 | ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | ||
| Illmitz | 16.46 | 47.46 | 117 | EMEP | ||
| IMAA Potenza | 15.43 | 40.36 | 820 | AERONET | ||
| IMS METU Erdemli | 34.15 | 36.34 | 3 | AERONET | ||
| Irafoss | NA | -21.01 | 64.05 | 61 | AMAP,EMEP | |
| Iraty | -1.05 | 43.02 | 1300 | EMEP | ||
| ISDGM CNR | 12.2 | 45.26 | 20 | AERONET | ||
| Iskrba | IRB | 14.52 | 45.34 | 520 | EMEP | |
| Ispra | IPR | 8.38 | 45.48 | 209 | AERONET, EARLINET, AERONET, EUSAAR, EMEP | |
| Ivittuut | -48.17 | 61.21 | 10 | CO2 | RAMCES | |
| Izaña | IZO | -16.15 | 28.28 | 2367 | NO2,O3,BrO, ClNO2, O3, HNO3, HF, HCl, NO2, CH4, H2O, N2O, aerosol OCS | GAW-WDCGG, AERONET/PHOTONS, GAW-WOUDC and NDACC |
| Janiskoski | NA | 28.51 | 68.56 | 118 | AMAP, EMEP | |
| Jarczew | JCZ | 21.59 | 51.49 | 180 | GAW-WDCA, EMEP | |
| Jokioinen | NA | 23.3 | 60.49 | 106 | GAW-WDCA, EMEP, EUSAAR | |
| Jungfraujaerosol OCh | JFJ | 7.59 | 46.33 | 3580 | O3, NO2, HCl,HF,CLONO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, NDACC |
| Jungfraujoch | JFJ | 7.59 | 46.33 | 3580 | NDACC,EARLINET, EUSAAR, EMEP, GAW-WDCA, EMEP, EUSAAR | |
| Karasjok | 25.13 | 69.28 | 333 | AMAP, EMEP | ||
| Karlsruhe | 8.26 | 49.06 | 140 | AERONET | ||
| Kårvatn | NA | 8.53 | 62.47 | 210 | CAMP, EMEP | |
| Keldsnor | 10.44 | 54.44 | 9 | HELCOM,EMEP | ||
| Kerguelen | 70 | -49 | O3,NO2 | NDACC | ||
| Kiruna | KIR | 20 | 68 | 385 | HCl, HF, ClONO2 | NDACC |
| Kollumerwaard | KMW | 6.17 | 53.2 | 1 | EMEP | |
| Kosetice | KOS | 15.05 | 49.35 | 534 | GAW-WDCA,EUSAAR, EMEP | |
| K-puszta | KPS | 19.35 | 46.58 | 125 | GAW-WDCA,EUSAAR, EMEP | |
| La Crouzille | 1.23 | 46.08 | 497 | EMEP | ||
| La Hague | -1.5 | 49.37 | 133 | EMEP | ||
| La Laguna | -0.45 | 46.39 | ||||
| La Muela | -1.08 | 41.58 | 570 | CO2 | ICOS-CARBOEUROPE-GEOmon-IMECC | |
| La Reunion | 55.48 | -20.88 | 24 | HCl, HF, T, O3, NO2 | AERONET/PHOTONS, NDACC | |
| La Tardière | -0.45 | 46.39 | EMEP | |||
| La Casset | 6.31 | 45 | 1750 | EMEP | ||
| La Crau | -4.49 | 43.35 | ||||
| Laegeren | 8.21 | 47.29 | 735 | AERONET | ||
| Lahemaa | NA | 25.54 | 59.3 | 32 | EMEP | |
| Lampedusa | LMP | 12.38 | 35.31 | 60 | CO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, AERONET |
| Lamto | NA | -5.03 | 6.22 | 155 | RAMCES | |
| Langenbrügge/Waldhof | WAL | 10.45 | 52.48 | 74 | EMEP | |
| Lannion | -3.47 | 48.74 | 15 | AERONET/PHOTONS | ||
| L'Aquila, | 13.28 | 42.2 | 683 | EARLINET | ||
| Lauder | LAU | 169.68 | -45.03 | 370 | NO2, HCl, HF, ClONO2, O3 | NDACC, GAW-WOUDC and NDACC |
| Lausanne | 6.3 | 46.3 | EARLINET | |||
| Le Casset | 6.28 | 45 | 1750 | EMEP | ||
| Leba | LEB | 17.32 | 54.45 | 2 | GAW-WDCA, EMEP | |
| Lecce | 18.01 | 40.2 | 30 | AERONET, EARLINET | ||
| Leipzig | 12.25 | 51.2 | EARLINET | |||
| Leipzig-IFT | 12.26 | 51.21 | 125 | AERONET | ||
| Liesek | 19.41 | 49.22 | 892 | EMEP | ||
| Lille | 3.14 | 50.61 | 60 | AERONET/PHOTONS | ||
| Lille Valby | 12.07 | 55.41 | 10 | EMEP | ||
| Linkoping | 15.32 | 58.25 | EARLINET | |||
| Lisboa | -9.13 | 38.77 | 105 | GAW-WDCA | ||
| Lough Navar | NA | -7.54 | 54.26 | 126 | EMEP | |
| Lutjewad | 6.21 | 53.24 | 1 | ICOS-CARBOEUROPE-GEOmon-IMECC | ||
| Mace Head | MHD | -9.54 | 53.2 | 340 | CO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES, GAW-WDCA,EUSAAR, EMEP, AGAGE/GAW-WDCGG |
| Madrid | NA | -3.25 | 40.24 | EARLINET, GAW-WOUDC | ||
| Mahon | 4.25 | 39.9 | 10 | |||
| Mainé_Soroa | 12.01 | 13.13 | AERONET/PHOTONS | |||
| Mainz | 8.18 | 49.6 | 150 | AERONET | ||
| Maisach | 11.16 | 48.15 | EARLINET | |||
| Marambio | NA | -57 | -64 | 200 | NO2,O3 | GAW-WOUDC |
| Matorova (Pallas) | 24.15 | 68 | 340 | GAW-WDCA, AMAP, EMEP | ||
| Mauna Lua | MLO | -156 | 20 | 3397 | O3,PSC,T, T, O3, aerosol extinction | NDACC |
| Melpitz | 12.32 | 51.19 | 86 | AERONET, EUSAAR,EMEP | ||
| Merida | -71.1 | 8.2 | BREDOM | |||
| Messina | NA | 15.56 | 38.13 | 15 | AERONET/PHOTONS | |
| Minsk | MAS | 27.5 | 53 | 200 | AERONET/PHOTONS, EARLINET | |
| Modena | 10.57 | 44.38 | 56 | EARLINET | ||
| Moldova | 28.49 | 47 | 205 | AERONET | ||
| Montandon | 6.5 | 47.18 | 746 | EMEP | ||
| Monte Velho | -8.8 | 38.08 | 43 | |||
| Montelibretti | 12.38 | 42.6 | 48 | EMEP | ||
| Montfranc | 1.23 | 46.08 | 810 | EMEP | ||
| Montseny | 2.21 | 41.46 | 700 | EUSAAR, EMEP | ||
| Morvan | 4.05 | 47.16 | 620 | EMEP | ||
| Moscow MSU MO | 37.31 | 55.42 | 192 | AERONET | ||
| Moussala | 24.44 | 41.42 | EUSAAR, EMEP | |||
| Mt Cimone | 10.42 | 44.11 | 2165 | ICOS-CARBOEUROPE-GEOmon-IMECC, GAW-WDCA,EUSAAR, EMEP | ||
| Munich | 11.1 | 48.15 | 520 | AERONET, EARLINET | ||
| Nairobi | NRB | 36.75 | -1.3 | 1795 | BrO | BREDOM, GAW-WOUDC |
| Napoli | NA | 14.3 | 40.8 | 118 | EARLINET | |
| Nes_Ziona | 34.47 | 31.55 | ||||
| Neuchatel | 7 | 47 | 487 | EARLINET | ||
| Neuglobsow | NGL | 13.02 | 53.09 | 62 | GAW-WDCA, EMEP | |
| Niembro | -4.51 | 43.26 | 134 | EMEP | ||
| Nord, Greenland | -16.4 | 81.36 | 20 | AMAP | ||
| Nuuk | -51.39 | 64.1 | 320 | AMAP | ||
| Ny Ålesund (Koldewey) | NYA | 11.54 | 78.54 | 15 | BrO,NO2,HCHO, H2O, HCl, HF, CLONO2, PSC, T | EARLINET, NDACC |
| Ny Alesund (Sverdrup) | NYA | 11.54 | 78.54 | 15 | O3, NO2 | NDACC |
| Ny Ålesund (Zeppelin) | ZEP | 11.54 | 78.54 | 474 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, AMAP, EUSAAR, EMEP, GAW-WDCA, EMEP, EUSAAR | |
| O Saviñao | -7.42 | 13.13 | 506 | EMEP | ||
| Oak Park | -6.03 | 52.03 | 59 | EMEP | ||
| aerosol OChsenkopf | OXK | 4.87 | 50.15 | 1024 | CO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC,NOAA ESRL CCGG |
| OHP Observatory | 5.71 | 43.92 | 650 | O3, BrO, NO2, HCHO, T, PSC, O3,NO2 | AERONET/PHOTONS, EARLINET, NDACC | |
| Oostende | 2.56 | 51.14 | 23 | AERONET/PHOTONS | ||
| Orleans | 2.5 | 47.83 | - | ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | ||
| Ouagadougou | -1.4 | 12.2 | 290 | AERONET/PHOTONS | ||
| Oulanka | OUX | 29.24 | 66.19 | 310 | AMAP, EMEP | |
| Palaiseau | 2.21 | 48.7 | 156 | AERONET/PHOTONS, EARLINET | ||
| Palencia | -4.31 | 41.59 | 750 | AERONET/PHOTONS | ||
| Pallas | PAL | 24.07 | 67.58 | 560 | CO2 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, GAW-WDCA, EUSAAR, EMEP |
| Paramaribo | NA | -5.21 | 5.75 | 23 | GAW-WOUDC and NDACC | |
| Paris | NA | 2.33 | 48.9 | 50 | AERONET/PHOTONS | |
| Payerne | PAY | 6.56 | 46.48 | 489 | EMEP | |
| Penausende | -5.52 | 41.17 | 985 | EMEP | ||
| Peyrusse Vielle | 0.11 | 43.37 | 200 | EMEP | ||
| Pic du Midi | 0.15 | 43.07 | 2898 | ICOS-CARBOEUROPE-GEOmon-IMECC, OMP, RAMCES, AERONET | ||
| Pinega | NA | 43.24 | 64.42 | 28 | EMEP | |
| Plateau Rosa | PRS | 7.42 | 46.56 | 3480 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC | |
| Pondichery | 79.75 | 12 | 20 | ICOS-CARBOEUROPE-GEOmon-IMECC, RAMCES | ||
| Potenza | 15.72 | 40.6 | 760 | EARLINET | ||
| Preila | PLA | 21.04 | 55.21 | 5 | HELCOM, EUSAAR, EMEP | |
| Puy de Dôme | 2.57 | 45.46 | 1465 | CO2 | ICOS-CARBOEUROPE-GEOmon-IMECC,RAMCES, EUSAAR, EMEP | |
| Raoe | 11.54 | 57.23 | 5 | EMEP, CAMP, HELCOM | ||
| Revin | 4.38 | 49.54 | 390 | EMEP | ||
| Ridge of Capard | -7.27 | 53.7 | 340 | EMEP | ||
| Rigi | RIG | 8.27 | 47.04 | 1031 | EMEP | |
| Risco Llano | -4.21 | 39.31 | 1241 | EMEP | ||
| Roervik | 11.56 | 57.25 | 10 | EMEP | ||
| Rome Tor Vergata | 12.39 | 41.5 | 130 | AERONET | ||
| Roquetas | 0.5 | 40.82 | 50 | |||
| Rothera | NA | 68 | -68 | ? | O3,NO2 | NDACC |
| Rucava | RCV | 21.13 | 56.13 | 18 | GAW-WDCHELCOM,EMEP | |
| Saada | -8.01 | 31.63 | 420 | AERONET/PHOTONS | ||
| Salekhard | NA | 68 | 68 | O3,NO2 | NDACC | |
| Santa Cruz Tenerife | -16.15 | 28.28 | 52 | AERONET/PHOTONS | ||
| Schauinsland | SSL | 7.54 | 47.55 | 1298 | GAW-WDCGG, ICOS-CARBOEUROPE-GEOmon-IMECC, GAW-WDCA, EMEP | |
| Schmücke | 10.46 | 50.39 | 937 | EMEP | ||
| Scoresbysund | NA | -21 | 70 | O3,NO2 | NDACC | |
| Sede Boker | WIS | 34.47 | 30.51 | 480 | AERONET | |
| Sevastopol | 33.31 | 44.37 | 80 | AERONET | ||
| Shepeljovo | SHP | 29.07 | 59.58 | 4 | EMEP | |
| Sniezka | SNZ | 15.44 | 50.44 | 1605 | GAW-WDCA, EMEP | |
| Sodankyla | SDK | 26.36 | 67.24 | 180 | O3,NO2 | AERONET, NDACC |
| Sofia | SOF | 23.38 | 42.65 | 550 | EARLINET | |
| Sonnblick | 12.97 | 47.05 | 3106 | |||
| Stara Lesna | 20.17 | 49.09 | 808 | EMEP | ||
| Starina | 22.16 | 49.03 | 345 | EMEP | ||
| Storhofdi | -20.17 | 63.24 | 118 | AMAP, EMEP, CAMP | ||
| Strath Vaich Dam | -4.46 | 57.44 | 270 | EMEP | ||
| Suwalki | 22.57 | 54.8 | 184 | GAW-WDCA, EMEP | ||
| Svratouch | NA | 16.02 | 49.44 | 737 | EMEP | |
| Table Mountain | -118 | 34 | T,O3,PSC | NDACC | ||
| Tamanrasset | 5.52 | 22.79 | 1377 | AERONET/PHOTONS | ||
| Tange | NA | 9.36 | 56.21 | 13 | EMEP | |
| Tänikon | 8.54 | 47.28 | 539 | EMEP | ||
| The Burren | -9.6 | 53 | 60 | EMEP | ||
| The Hague | 4.2 | 52.07 | 18 | AERONET/PHOTONS | ||
| Thessaloniki | 22.58 | 40.38 | 60 | AERONET, EARLINET | ||
| Thule | -68.77 | 76.52 | 200 | O3,NO2 | GAW-WDCA, NDACC | |
| Tito Scalo-Potenza | 15.04 | 40.35 | EARLINET | |||
| Topolniky | 17.52 | 47.58 | 113 | EMEP | ||
| Toravere | NA | 26.28 | 58.15 | 70 | AERONET | |
| Toulon | 5.94 | 43.13 | 50 | AERONET/PHOTONS | ||
| Toulouse | 1.34 | 43.22 | 150 | AERONET/PHOTONS | ||
| Trainou | 2.1125 | 47.9647 | 131 | CO2, CH4 | ICOS-CARBOEUROPE-GEOmon-IMECC,RAMCES | |
| Tromelin | 54.52 | -15.88 | RAMCES | |||
| Tromso | 18.95 | 69.65 | 100 | EARLINET | ||
| Turlough Hill | -6.24 | 53.2 | 420 | EMEP | ||
| Tustervatn | NA | 13.55 | 65.5 | 439 | EMEP | |
| Tver | 32.92 | 56.45 | 250 | RAMCES | ||
| Ulborg | 8.26 | 56.17 | 10 | EMEP | ||
| Ushuaia | USI | -68.28 | -55.85 | 18 | NO2 | GAW-WOUDC |
| Utö | UTO | 21.23 | 59.47 | 7 | GAW-WDCA, EMEP, HELCOM | |
| Valentina Obs | -10.14 | 51.56 | 11 | EMEP, CAMP | ||
| Vavihill | 13.09 | 56.01 | 172 | HELCOM, EUSAAR, EMEP | ||
| Venice | 12.3 | 45.19 | 10 | AERONET | ||
| Viana do Castelo | -8.4 | 41.42 | 16 | GAW-WDCA, EMEP | ||
| Villefranche | 7.33 | 43.68 | 130 | AERONET/PHOTONS | ||
| Vindeln | VDL | 19.46 | 64.15 | 225 | EMEP | |
| Virolahti II | 27.41 | 60.31 | 4 | EMEP, HELCOM | ||
| Viznar | -3.28 | 37.14 | 1230 | EMEP | ||
| Voeikovo | 30.7 | 59.95 | ICOS-CARBOEUROPE-GEOmon-IMECC | |||
| Vorhegg | 12.58 | 46.4 | 1020 | EMEP | ||
| Vreedepeel | 5.51 | 51.32 | 5 | EMEP | ||
| Westerland Tinnum | WES | 8.2 | 54.54 | 10 | EMEP | |
| Weybornr | 1.11 | 52.95 | 16 | |||
| Xinglong | 117.28 | 31.87 | 970 | AERONET/PHOTONS | ||
| Yarner Wood | NA | -3.43 | 50.36 | 119 | EMEP | |
| Zarra | -1.06 | 39.05 | 885 | EMEP | ||
| Zavizan | 14.98 | 44.82 | 1594 | |||
| Zhigansk | 123.35 | 66.79 | 200 | O3,NO2 | ||
| Zingst | ZGT | 12.44 | 54.26 | 1 | EMEP | |
| Zoseni | ZSN | 25.55 | 57.08 | 183 | GAW-WDCA,HELCOM,EMEP | |
| Zugspitze | ZSF | 10.58 | 47.25 | 2650 | HCl, HF, ClONO2, COF2 | GAW-WDCA, EMEP, EUSAAR, GAW-WDCGG, NDACC |
| Zvenigorod | 36.47 | 55.42 | 200 | AERONET |