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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) (, )

Column - multiple species

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

Column - multiple species

Model: Bomem DA3

Public Data:

Model: Bruker 125HR

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Profile - multiple species

Model: Bruker 125HR

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Eureka, Canada (80.05N, 86.42W)

Column - multiple species

Model: Bomen DA8

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Model: Bruker 120M

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Profile - multiple species

Model: Bruker 125HR

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Aberdeen, United Kingdom (57.15N, 2.15W)

Column - multiple species

Model: Bruker 120M

Comments:

*.wof

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Harestua, Norway (60.2N, 10.8E)

Column - multiple species

Model: Bruker 120M

Comments:

*.wof

Public Data:

Model: Bruker 120M/125M

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Jungfraujoch, Switzerland (46.55N, 7.98E)

Column - multiple species

Model: Bruker 120M

Comments:

*.wof

Public Data:

Profile - multiple species

Model: Bruker 120HR

Comments:

ulg002

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Model: Home-built FTS

Comments:

ulg001

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Lauder, New Zealand (45.04S, 169.68W)

Column - multiple species

Model: Bruker 120M

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Model: Bruker 120M/120HR/125HR

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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

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Profile - multiple species

Model: Bruker 120

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

Column - multiple species

Model: Bruker 120M

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Model: JPL MkIV

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Søndre Strømfjord, Greenland (66.99N, 50.95W)

Column - multiple species

Model: EOCOM

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Esrange, Sweden (67.9N, 21.1E)

Column - multiple species

Model: JPL MkIV

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

Column - multiple species

Model: JPL MkIV

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

Column - multiple species

Model: JPL MkIV

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

Column - multiple species

Model: McMath FTS

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Arrival Heights, Antarctica (77.83S, 166.67E)

Column - multiple species

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

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Profile - multiple species

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

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Toronto, Canada (43.66N, 79.40W)

Column - multiple species

Model: Bomem DA8

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Profile - multiple species

Model: Bomem DA8

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Moshiri, Japan (44.4N, 142.3E)

Column - multiple species

Model: Bruker 120HR

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Profile - multiple species

Model: Bruker 120HR

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Zugspitze, Germany (47.42N, 10.98E)

Column - multiple species

Model: Bruker 120HR

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Profile - multiple species

Model: Bruker 120HR

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Kiruna, Sweden (67.84N, 20.41E)

Column - multiple species

Model: Bruker 120HR/125

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Profile - multiple species

Model: Bruker 120HR/125

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Bremen, Germany (53.1N, 8.8E)

Profile - multiple species

Model: Bruker 120HR/125HR

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Column - multiple species

Model: Bruker 120HR/125HR

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Rikubetsu, Japan (43.46N, 143.77E)

Column - multiple species

Model: Bruker 120M

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Profile - multiple species

Model: Bruker 120M

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

Column - multiple species

Model: Bruker 120M/125HR

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Profile - multiple species

Model: Bruker 120M/125HR

Public Data:

Wollongong, Australia (34.41S, 150.88E)

Column - multiple species

Model: Bruker 125/Bomem DA8, DA3

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Profile - multiple species

Model: Bruker 125/Bomem DA8, DA3

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Thule, Greenland (76.53N, 68.74W)

Column - multiple species

Model: Bruker

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Profile - multiple species

Model: Bruker

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Altzomoni, Mexico (19.12N, 98.66W)

Profile - multiple species

Model: Bruker 120/5HR

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

Profile - multiple species

Model: Bruker 120M

Comments:

iasb001

Public Data:

Model: Bruker 125HR

Comments:

iasb002

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Paramaribo, Suriname (5.75N, 55.2W)

Profile - multiple species

Model: Bruker 120M/125M

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

Profile - multiple species

Model: Bruker 125HR

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

Profile - multiple species

Model: Bruker IFS 125HR

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