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.

http://www.iup.uni-bremen.de/doas/

Status: Ongoing
Project time span: 1995 - 2050
Data collection: 1995 -
Data processing: 1995 -
Data reporting: 1995 -

Contact information

Contact person: John P. Burrows
Address: University of Bremen P.O. Box 330440 28334 Bremen Germany
Phone: +49 421 218 4474
Fax: +49 421 218 4555
Email: ed.nemerb-inu.kisyhp.pui@sworrub
Other project contacts: Folkard Wittrock, folkard@iup.physik.uni-bremen.de

Parameters and Media

Parameter groups measured/observed/modelled

Climate change effects

Media sampled/studied/modelled

Air/aerosol

Geography

Regions studied: Climate change effects; Climate change effects

Data availability

Samples/specimens archived in specimen banks?: No

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?: Yes
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) http://www.ndsc.ncep.noaa.gov