TOPAS

Tropospheric Optical Absorption Spectroscopy

Completed

Type of Structure:	coordinated project
Regional Scope:	continental in the area: Europe
Parent Organisations:	EUROTRAC.EUREKA
Child Organisations:
Duration :	0 to 1995 COMPLETED
Contact Address:	no office contact defined

General information and objectives

Scientific aims:
• To develop long-path DOAS measuring equipment for visible and ultraviolet spectroscopy.
• To quantify the role of oxidised nitrogen compounds in photochemical cycles.
• To organise DOAS instrument intercomparison campaigns.
• To compare the performance of DOAS with other instrumental techniques.

Highlights of TESLAS current scientific results
Urban pollution measurements
TOPAS is developing long-path-length visible and ultraviolet spectrometers which measure the tiny concentrations of pollutants in the atmosphere from their absorption of light over path lengths ranging from a few hundred meters to several kilometres. An intercomparison campaign demonstrated the effectiveness of the technique in monitoring several pollutants in the air within the city of Brussels. Commercial instruments have also been developed.


Last update: 5/6/22
Source of data: ProClim- Research InfoSystem (1993-2024)

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