Author(s)

R. Weller, O. Schrems, A. Boddenberg and S. Gal

Abstract

Hydroperoxides, Formaldehyde and NO/NO: Measurements in the Marine Boundary Layer of the Atlantic Ocean (48° N-35° S) Guest contribution R. Weller', O. Schrems', A. Boddenberg^ and S. Gal/ ^Alfred Wegener Institut fur Polar- und Meeresforschung, Am Handelshafen 12, D-27570 Bremerhaven, Germany ^Bergische Universitat Gesamthochschule Wuppertal, FB 9, Gaufistrafie 20, D-42119 Wuppertal, Germany Introduction Large parts of the marine atmosphere, which covers around 70 % of the earth's surface, can be regarded as pristine. Thus, investigating photochemical processes in these regions is crucial to attain a detailed picture of the tropospheric chemistry in a global sense and to assess the oxidation capacity of the atmosphere. Concerning the 63 balance, photochemistry switches from a positive to a negative feed back on the Og concentration at NO levels lower than roughly 15 pp

Keywords