Production of odd hydrogen in the mesosphere during the January 2005 solar proton event

Details Production of odd hydrogen in the mesosphere during the January 2005 solar proton event Production of odd hydrogen in the mesosphere during the January 2005 solar proton event

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3324811v&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 24, CiteID L24811

Physics

29

Atmospheric Composition And Structure: Ion Chemistry Of The Atmosphere (2419, 2427), Atmospheric Composition And Structure: Middle Atmosphere: Composition And Chemistry, Ionosphere: Ionosphere/Atmosphere Interactions (0335), Ionosphere: Particle Precipitation

Scientific paper

Using measurements from the MLS/Aura and GOMOS/Envisat instruments together with a 1-D ion and neutral chemistry model we study the changes in odd hydrogen and ozone in the mesosphere during the January 2005 solar proton event. The unique observational data allow us for the first time to directly test the HO x production theory which involves complex ion chemistry. MLS measurements from the northern polar region show increases of OH concentrations by over 100% around the stratopause, and by up to one order of magnitude in the middle mesosphere after the onset of the SPE. GOMOS measurements indicate decreases in O3 concentration throughout the lower and middle mesosphere, by up to 90%. The model predictions are in reasonable agreement with the observations. We point out that models using the so-called P HOx/Q parameterization to include the effects of ion chemistry could underestimate the HO x production and the resulting ozone depletion.

Affiliated with

Also associated with

No associations

Rating

Production of odd hydrogen in the mesosphere during the January 2005 solar proton event 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 Production of odd hydrogen in the mesosphere during the January 2005 solar proton event, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of odd hydrogen in the mesosphere during the January 2005 solar proton event will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1545059