Extraordinary isotopic fractionation in ozone photolysis

Details Extraordinary isotopic fractionation in ozone photolysis Extraordinary isotopic fractionation in ozone photolysis

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3214814m&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 14, CiteID L14814

Physics

4

Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Middle Atmosphere: Composition And Chemistry

Scientific paper

Analysis of experimental ozone absorption spectra reveals that ultraviolet photolysis within the structured Huggins band yields extraordinary wavelength-dependent isotopic fractionation, oscillating between complete enrichment and complete depletion for changes of less than 2 nm in the excitation wavelength. Visible photolysis yields wavelength-dependent fractionation that varies from -300‰ to +300‰. Photochemical modeling demonstrates photolysis contributes fractionation up to +45‰ to the heavy ozone anomaly in the middle stratosphere with measurable 17O and 18O isotopologue-dependent variations as a function of altitude despite the fact that the extraordinary photolysis-induced isotopic fractionation effect is dampened in the atmosphere due to the integration over all excitation wavelengths.

Affiliated with

Also associated with

No associations

Rating

Extraordinary isotopic fractionation in ozone photolysis 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 Extraordinary isotopic fractionation in ozone photolysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extraordinary isotopic fractionation in ozone photolysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1249940