DOAS measurements of atmospheric trace gases (NDSC)

Updated 2002-02-13

Quasi-continuous observation of several atmospheric species are performed by measuring the absorption of visible and near ultraviolet sunlight scattered from the sky or in direct moonlight. Column abundance of molecules such as ozone, NO2, OClO, NO3, BrO, HCHO and IO are derived by means of a Differential Optical Absorption (DOAS) algorithm and a radiative transfer model. These activities are part of calibration and validation studies of different satellite experiments (GOME, SAGE III, SCIAMACHY). Since 1999 the instrument is part of the Network of the Detection of Stratospheric Change (NDSC). The instrument has been installed in 1995 as the second UV/vis instrument from the Institute of Environmental Physics. One similar setup in Bremen is continuously running with the exception of short maintenance breaks since 1993.

Time frame

Project time span
1995 - 2050
Data collection
1995 -
Data processing
1995 -
Data reporting
1995 -

Contact information

Contact person
John P. Burrows
University of Bremen P.O. Box 330440 28334 Bremen Germany
+49 421 218 4474
+49 421 218 4555
Other project contacts
Folkard Wittrock,

Parameters and Media

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


Regions studied
Climate change effects
Climate change effects

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

NILU, Kjeller, Norwegen Alfred Wegener Institute

Is this project reporting to other organizations/programmes?

Network of the Detection of Stratospheric Change (NDSC)

Please log in to edit this record