Trace gas measurements by Fourier Transform Infrared Spectroscopy (NDSC)

Updated 2002-02-01

The FTIR (Fourier Transform Infrared Spectroscopy) has been established as a powerful tool for measurements of atmospheric trace gases. Using the sun or moon as light source, between 20-30 trace gases of the tropo- and stratosphere can be detected by their absorption features. The analysis of the spectra allows to retrieve the total zenith columns of the trace gases. For a few trace gases the pressure broadening of the lines allows to get additionally some information on the vertical concentration profiles. Some important trace gases cannot be detected in the IR but in the UV/VIS. This makes it useful to record the whole spectral region from the IR from about 700/cm (14 µm) to the UV at 33000/cm (300 nm).

Comments and additional information:

Time frame

Project time span
1992 - 2050
Data collection
1992 -
Data processing
1992 -
Data reporting
1992 -

Contact information

Contact person
Justus Notholt
AWI, Telegrafenberg A43, 14473 Potsdam
+49 331 288 2101
+49 331 288 2178

Parameters and Media

Parameter groups measured/observed/modelled
Climate change effects
Media sampled/studied/modelled


Regions studied
Koldewey Station, Ny-Ålesund/Spitsbergen

Data availability

Samples/specimens archived in specimen banks?

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Other institutes involved in the project

total column analysis with GFIT: G. Toon, JPL/Caltech, Pasadena, U.S.A.. vmr profile analysis with SFIT2: N. Jones, NIWA/Lauder, New Zeeland, C. Rinsland, NASA/Langley, Hampton, U.S.A.. HALOE/UARS satellite validation: J. Russell II, Hampton university, Hampton, U.S.A.. MOPITT satellite validation: D. Ewards, NCAR/Boulder, U.S.A.. SCIAMACHY/ENVISAT satellite validation: J. Burrows, IfE, Bremen. line shape analysis: F. Hase, T. Blumenstock, IMK/KFK, Karlsruhe. SOGE EU project: F. Stordal, NILU/Kjeller, Nowegen SAMMOA EU project: Y. Orsolini, NILU/Kjeller, Nowegen COMSIR EU project: B. Galle, Chambers university, Harestua, Schweden. Aerosol DFG project: J. Fischer, Free University, Berlin. 3-D model simulations: M. Chipperfield, University of Leeds, UK. 1-D model simulations: E. Renner, IfT Leipzig. instrumental development: A. Keens, Bruker GmbH, Karlsruhe.

Is this project reporting to other organizations/programmes?

Network for the Detection of Stratospheric Change (NDSC)

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