Norwegian EUROTRAC Participation 1986-1990.

The Norwegian scientific participation in the Eureka project EUROTRAC 1986-1990 is documented in the report. The main Norwegian activity is centered within TOR (Tropospheric Ozone Research) where measurements are carried. out at Birkenes and Ny-Ålesund on svalbard, and model calculations are done in support of the measurements to interpret atmospheric chemical change both on a European and global scale. There is also Norwegian contributions in Lactoz, Halipp, Glomac and Eumac.