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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

Søndre Strømfjord, Greenland (66.99° N, 50.95° W)

Model: EOCOM Parameter:

Comments:

Campaign. SESAME

Public Data:

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

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 (80.05° N, 86.42° W)

Model: Bomen DA8 Parameter: Column - multiple species

Comments:

Removed 2009

Public Data:

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. Data never archived.

Public Data:

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

Comments:

Mid-IR SFIT2 profiles

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Aberdeen, United Kingdom (57.15° N, 2.15° W)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. File extension .wof. SESAME I and SESAME II.

Public Data:

Harestua, Norway (60.2° N, 10.8° E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. File extension .wof.

Public Data:

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

Comments:

Bruker 120M 1994-2008; Bruker 125M 2009-

Public Data:

Jungfraujoch, Switzerland (46.55° N, 7.98° E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. File extension .wof.

Public Data:

Model: Bruker 120HR Parameter: Profile - multiple species

Comments:

ulg002

Public Data:

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

Comments:

ulg001

Public Data:

Lauder, New Zealand (45.04° S, 169.68° W)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. Data never archived.

Public Data:

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

Comments:

Bruker 120M 1990–2001; Bruker120HR 2001–2018; Bruker 125HR 2017-present

Public Data:

Ny Ålesund, Norway (78.92° N, 11.93° E)

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. File extension .wof

Public Data:

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

Comments:

For 10 species concentration profiles retrieved up to ~30km

Public Data:

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

Model: Bruker 120M Parameter: Column - multiple species

Comments:

Campaign. Data never archived.

Public Data:

Model: JPL MkIV Parameter: Column - multiple species

Comments:

Campaign

Public Data:

Esrange, Sweden (67.9° N, 21.1° E)

Model: JPL MkIV Parameter: Column - multiple species

Comments:

Campaign

Public Data:

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

Model: JPL MkIV Parameter: Column - multiple species

Comments:

Campaign

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

Model: JPL MkIV Parameter: Column - multiple species

Comments:

Campaign

Public Data:

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

Model: McMath FTS Parameter: Column - multiple species

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Wollongong, Australia (34.41° S, 150.88° E)

Parameter: Column - multiple species, Profile - multiple species

Comments:

Bomem DA3 1995-1996; Bomem DA8: 1996-2008; Bruker 125HR 2008-present

Public Data:

Arrival Heights, Antarctica (77.83° S, 166.67° E)

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

Comments:

Bomem DA2 1991-1996 (HNO3 and HCl); Bruker 120M 1996-2016 (Column and Profile); Bruker 125HR 2014-present (Column and Profile)

Public Data:

Toronto, Canada (43.66° N, 79.40° W)

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

Public Data:

Moshiri, Japan (44.4° N, 142.3° E)

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

Public Data:

Zugspitze, Germany (47.42° N, 10.98° E)

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

Public Data:

Kiruna, Sweden (67.84° N, 20.41° E)

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

Comments:

Updated to Bruker 125 in 2007

Public Data:

Bremen, Germany (53.1° N, 8.8° E)

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

Comments:

Bruker 120HR 2002-2003; Bruker 125HR 2004-

Public Data:

Rikubetsu, Japan (43.46° N, 143.77° E)

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

Public Data:

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

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

Comments:

Bruker 120M: 1999-2005; Bruker 125HR: 2005-

Public Data:

Thule, Greenland (76.53° N, 68.74° W)

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

Public Data:

Altzomoni, Mexico (19.12° N, 98.66° W)

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

Public Data:

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

Model: Bruker 120M Parameter: Profile - multiple species

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Model: Bruker 125HR Parameter: Profile - multiple species

Comments:

Primarily operates in TCCON mode.

Public Data:

Paramaribo, Suriname (5.75° N, 55.2° W)

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

Public Data:

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

Model: Bruker 125HR Parameter: Profile - multiple species

Public Data:

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

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

Public Data: