FTIR Spectrometer

Note: Instrument pages are currently under construction. Thank you for your patience.

The Infrared Working Group (IRWG) manages twenty solar viewing Fourier-Transform Infrared Spectrometers (FTIR) that are distributed on all continents spanning the latitude range from 80ºS to 80ºN. These instruments record mid-infrared solar transmission spectra at high spectral resolution. Some, especially at remote sites operate autonomously, others are operated remotely or manually. The spectra contain the spectral signatures of vibrational-rotational transitions of numerous trace gases in the terrestrial atmosphere as they absorb solar radiation. The spectra are analysed to measure the concentration of these trace gases in the atmosphere using the method of optimal estimation. Gases of primary interest are  O3, HCl, HF, ClONO2, HNO3, N2O, CH4, CO, C2H6, and HCN.  Concentrations of these species all vary with altitude, this information along with retrieval characterization metadata are provided to allow optimal use of the data. Our aim is to record long-term high quality inter-calibrated spectra that provide trends of trace gases that can be used to understand tropospheric (https://en.wikipedia.org/wiki/Troposphere) and stratospheric chemistry (https://en.wikipedia.org/wiki/Stratosphere) and transport.

Locations

Polarstern, Germany (Ship-Based) (, )

Column - multiple species

Public Data:
Mauna Loa, HI, United States (19.54N, 155.58W)

Column - multiple species

Model: Bomem DA3
Public Data:
Model: Bruker 125HR
Public Data:

Profile - multiple species

Model: Bruker 125HR
Public Data:
Eureka, Canada (80.05N, 86.42W)

Column - multiple species

Model: Bomen DA8
Public Data:
Model: Bruker 120M
Public Data:

Profile - multiple species

Model: Bruker 125HR
Public Data:
Aberdeen, United Kingdom (57.15N, 2.15W)

Column - multiple species

Model: Bruker 120M
Comments:
*.wof
Public Data:
Harestua, Norway (60.2N, 10.8E)

Column - multiple species

Model: Bruker 120M
Comments:
*.wof
Public Data:
Model: Bruker 120M/125M
Public Data:
Jungfraujoch, Switzerland (46.55N, 7.98E)

Column - multiple species

Model: Bruker 120M
Comments:
*.wof
Public Data:

Profile - multiple species

Model: Bruker 120HR
Comments:
ulg002
Public Data:
Model: Home-built FTS
Comments:
ulg001
Public Data:
Lauder, New Zealand (45.04S, 169.68W)

Column - multiple species

Model: Bruker 120M
Public Data:
Model: Bruker 120M/120HR/125HR
Public Data:

Profile - multiple species

Model: Bruker 120M/120HR/125HR
Public Data:
Ny Ålesund, Norway (78.92N, 11.93E)

Column - multiple species

Model: Bruker 120M
Comments:
*.wof
Public Data:
Model: Bruker 120
Public Data:

Profile - multiple species

Model: Bruker 120
Public Data:
Table Mountain Facility, CA, United States (34.4N, 117.7W)

Column - multiple species

Model: Bruker 120M
Public Data:
Model: JPL MkIV
Public Data:
Søndre Strømfjord, Greenland (66.99N, 50.95W)

Column - multiple species

Model: EOCOM
Public Data:
Esrange, Sweden (67.9N, 21.1E)

Column - multiple species

Model: JPL MkIV
Public Data:
Fairbanks, AK, United States (64.82N, 147.87W)

Column - multiple species

Model: JPL MkIV
Public Data:
Mt. Barcroft, CA, United States (37.58N, 118.24W)

Column - multiple species

Model: JPL MkIV
Public Data:
Kitt Peak, AZ, United States (31.9N, 111.6W)

Column - multiple species

Model: McMath FTS
Public Data:
Arrival Heights, Antarctica (77.83S, 166.67E)

Column - multiple species

Model: Bomem DA2/Bruker 120M/Bruker 125HR
Public Data:

Profile - multiple species

Model: Bomem DA2/Bruker 120M/Bruker 125HR
Public Data:
Toronto, Canada (43.66N, 79.40W)

Column - multiple species

Model: Bomem DA8
Public Data:

Profile - multiple species

Model: Bomem DA8
Public Data:
Moshiri, Japan (44.4N, 142.3E)

Column - multiple species

Model: Bruker 120HR
Public Data:

Profile - multiple species

Model: Bruker 120HR
Public Data:
Zugspitze, Germany (47.42N, 10.98E)

Column - multiple species

Model: Bruker 120HR
Public Data:

Profile - multiple species

Model: Bruker 120HR
Public Data:
Kiruna, Sweden (67.84N, 20.41E)

Column - multiple species

Model: Bruker 120HR/125
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Profile - multiple species

Model: Bruker 120HR/125
Public Data:
Bremen, Germany (53.1N, 8.8E)

Profile - multiple species

Model: Bruker 120HR/125HR
Public Data:

Column - multiple species

Model: Bruker 120HR/125HR
Public Data:
Rikubetsu, Japan (43.46N, 143.77E)

Column - multiple species

Model: Bruker 120M
Public Data:

Profile - multiple species

Model: Bruker 120M
Public Data:
Izaña, Tenerife, Spain (28.30N, 16.48W)

Column - multiple species

Model: Bruker 120M/125HR
Public Data:

Profile - multiple species

Model: Bruker 120M/125HR
Public Data:
Wollongong, Australia (34.41S, 150.88E)

Column - multiple species

Model: Bruker 125/Bomem DA8, DA3
Public Data:

Profile - multiple species

Model: Bruker 125/Bomem DA8, DA3
Public Data:
Thule, Greenland (76.53N, 68.74W)

Column - multiple species

Model: Bruker
Public Data:

Profile - multiple species

Model: Bruker
Public Data:
Altzomoni, Mexico (19.12N, 98.66W)

Profile - multiple species

Model: Bruker 120/5HR
Public Data:
Reunion Island, St. Denis, France (20.9S, 55.5E)

Profile - multiple species

Model: Bruker 120M
Comments:
iasb001
Public Data:
Model: Bruker 125HR
Comments:
iasb002
Public Data:
Paramaribo, Suriname (5.75N, 55.2W)

Profile - multiple species

Model: Bruker 120M/125M
Public Data:
Reunion Island, Maido, France (21.1S, 55.4E)

Profile - multiple species

Model: Bruker 125HR
Public Data:
St. Petersburg, Russian Federation (59.9N, 29.8E)

Profile - multiple species

Model: Bruker IFS 125HR
Public Data: