Daytime formation of nitrous acid: A major source of OH radicals in a forest

Details Daytime formation of nitrous acid: A major source of OH radicals in a forest Daytime formation of nitrous acid: A major source of OH radicals in a forest

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3205818k&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 5, CiteID L05818

Physics

41

Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere: Composition And Chemistry

Scientific paper

Daytime concentrations of HONO, NOx, OH and photolysis frequencies were measured during the ECHO field campaign in a mixed deciduous forest near Jülich, West-Germany, in summer 2003. Midday measurements show clear evidence for a large, yet unexplained daytime source of HONO (~500 pptv/h), which represents an important net source of OH radicals due to ongoing HONO photolysis. The evidence for a large HONO daytime source is for the first time completely constrained by measured parameters, needed to determine the daytime budget of HONO. The large contribution of 33% to the primary OH production during noon at the top of the forest canopy suggests that the unexplained source of HONO could have an important impact on the photochemical transformation of biogenically emitted volatile organic compounds (VOCs) by OH into partly oxidized VOCs and secondary organic aerosols during their release from forest regions into the troposphere.

Affiliated with

Also associated with

No associations

Rating

Daytime formation of nitrous acid: A major source of OH radicals in a forest does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Daytime formation of nitrous acid: A major source of OH radicals in a forest, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Daytime formation of nitrous acid: A major source of OH radicals in a forest will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1217577