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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.

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Locations

Polarstern, Germany (Ship-Based) (, )

Parameter: Column - multiple species

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

Model: Bomem DA3 Parameter: Column - multiple species

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Model: Bruker 125HR Parameter: Column - multiple species, Profile - multiple species

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Eureka, Canada (80.05N, 86.42W)

Model: Bomen DA8 Parameter: Column - multiple species

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Model: Bruker 120M Parameter: Column - multiple species

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Model: Bruker 125HR Parameter: Column - multiple species, Profile - multiple species

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Aberdeen, United Kingdom (57.15N, 2.15W)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

*.wof

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Harestua, Norway (60.2N, 10.8E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

*.wof

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Model: Bruker 120M/125M Parameter: Column - multiple species

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Jungfraujoch, Switzerland (46.55N, 7.98E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

*.wof

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Model: Bruker 120HR Parameter: Profile - multiple species

Comments:

ulg002

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Model: Home-built FTS Parameter: Profile - multiple species

Comments:

ulg001

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Lauder, New Zealand (45.04S, 169.68W)

Model: Bruker 120M Parameter: Column - multiple species

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Model: Bruker 120M/120HR/125HR Parameter: Column - multiple species, Profile - multiple species

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Ny Ålesund, Norway (78.92N, 11.93E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

*.wof

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Model: Bruker 120 Parameter: Column - multiple species, Profile - multiple species

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Table Mountain Facility, CA, United States (34.4N, 117.7W)

Model: Bruker 120M Parameter: Column - multiple species

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Model: JPL MkIV Parameter: Column - multiple species

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Søndre Strømfjord, Greenland (66.99N, 50.95W)

Model: EOCOM Parameter: Column - multiple species

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Esrange, Sweden (67.9N, 21.1E)

Model: JPL MkIV Parameter: Column - multiple species

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Fairbanks, AK, United States (64.82N, 147.87W)

Model: JPL MkIV Parameter: Column - multiple species

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Mt. Barcroft, CA, United States (37.58N, 118.24W)

Model: JPL MkIV Parameter: Column - multiple species

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Kitt Peak, AZ, United States (31.9N, 111.6W)

Model: McMath FTS Parameter: Column - multiple species

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Arrival Heights, Antarctica (77.83S, 166.67E)

Model: Bomem DA2/Bruker 120M/Bruker 125HR Parameter: Column - multiple species, Profile - multiple species

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Toronto, Canada (43.66N, 79.40W)

Model: Bomem DA8 Parameter: Column - multiple species, Profile - multiple species

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Moshiri, Japan (44.4N, 142.3E)

Model: Bruker 120HR Parameter: Column - multiple species, Profile - multiple species

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Zugspitze, Germany (47.42N, 10.98E)

Model: Bruker 120HR Parameter: Column - multiple species, Profile - multiple species

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Kiruna, Sweden (67.84N, 20.41E)

Model: Bruker 120HR/125 Parameter: Column - multiple species, Profile - multiple species

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Bremen, Germany (53.1N, 8.8E)

Model: Bruker 120HR/125HR Parameter: Column - multiple species, Profile - multiple species

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Rikubetsu, Japan (43.46N, 143.77E)

Model: Bruker 120M Parameter: Column - multiple species, Profile - multiple species

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Izaña, Tenerife, Spain (28.30N, 16.48W)

Model: Bruker 120M/125HR Parameter: Column - multiple species, Profile - multiple species

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Wollongong, Australia (34.41S, 150.88E)

Model: Bruker 125/Bomem DA8, DA3 Parameter: Column - multiple species, Profile - multiple species

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Thule, Greenland (76.53N, 68.74W)

Model: Bruker Parameter: Column - multiple species, Profile - multiple species

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Altzomoni, Mexico (19.12N, 98.66W)

Model: Bruker 120/5HR Parameter: Profile - multiple species

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Reunion Island, St. Denis, France (20.9S, 55.5E)

Model: Bruker 120M Parameter: Profile - multiple species

Comments:

iasb001

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Model: Bruker 125HR Parameter: Profile - multiple species

Comments:

iasb002

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Paramaribo, Suriname (5.75N, 55.2W)

Model: Bruker 120M/125M Parameter: Profile - multiple species

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Reunion Island, Maido, France (21.1S, 55.4E)

Model: Bruker 125HR Parameter: Profile - multiple species

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St. Petersburg, Russian Federation (59.9N, 29.8E)

Model: Bruker IFS 125HR Parameter: Profile - multiple species

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