An investigation of the processes controlling ozone in the upper stratosphere

Conference · Sun Jul 05 04:00:00 EDT 1992

OSTI ID:7029164

Patten, Jr, K O; Connell, P S; Kinnison, D E; Wuebbles, D J ^[1]; Waters, J; Froidevaux, L ^[2]; Slanger, T G ^[3]

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1. Lawrence Livermore National Lab., CA (United States)
2. Jet Propulsion Lab., Pasadena, CA (United States)
3. SRI International, Menlo Park, CA (United States)

Photolysis of vibrationally excited oxygen produced by ultraviolet photolysis of ozone in the upper stratosphere is incorporated into the Lawrence Livermore National Laboratory 2-D zonally averaged chemical-radiative-transport model of the troposphere and stratosphere. The importance of this potential contributor of odd oxygen to the concentration of ozone is evaluated based upon recent information on vibrational distributions of excited oxygen and upon preliminary studies of energy transfer from the excited oxygen. When the energy transfer rate constants of previous work are assumed, increases in model ozone concentrations of up to 40 percent in the upper stratosphere are found, and the ozone concentrations of the model agree with measurements, including data from the Upper Atmosphere Research Satellite. However, the increase is about 0.4 percent when the larger energy transfer rate constants suggested by more recent experimental work are applied in the model. This indicates the importance of obtaining detailed information on vibrationally excited oxygen properties, particularly the state-specific energy transfer rate constants, to evaluation of tills precess for stratospheric modeling.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: DOE; NASA; USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7029164
• Report Number(s): UCRL-JC-108954; CONF-9206262--3; ON: DE92019621
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ATMOSPHERIC CHEMISTRY
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COMPUTERIZED SIMULATION
DECOMPOSITION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELEMENTS
NONMETALS
OXYGEN
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATION EFFECTS
RADIATIONS
SIMULATION
STRATOSPHERE
ULTRAVIOLET RADIATION