Effects of trace gases on global atmospheric chemical and physical processes

Technical Report · Fri May 26 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/5909995· OSTI ID:5909995

Kinnison, D. E.

This study examines the effects that increased emissions of anthropogenic and naturally-occurring trace gases have on the chemical and physical processes in the global temperature. The Lawrence Livermore National Laboratory (LLNL) one- and two-dimensional chemical-radiative-transport models of the troposphere and stratosphere, are used to calculate the net effects that variations in these trace gases, either individually, or taken together have on the ozone distribution and temperature structure. Using the LLNL one-dimensional model, calculation are made that include large changes of NO/sub x/, Cl/sub x/, and HO/sub x/. The object was to see of any interesting or unexpected effects could be found. The nitrous oxide boundary value is varied from 1/4 to 8 times the reference (1960) value of 300 ppbv. Stratospheric Cl/sub x/, is varied from 0 to 22 ppbv. Special atmospheres are considered in which all HO/sub x/, NO/sub x/, and Cl/sub x/, or combinations of these are omitted from the reference atmosphere. A sensitivity study is carried out using the LLNL one- and two-dimensional chemical-radiative-transport models to examine possible effects of future aircraft NO/sub x/ emissions on stratospheric ozone. A broad range in magnitude, altitude, and latitude of the assumed NO/sub x/ emissions is examined for various background Cl/sub x/ values. The change in column-ozone is calculated for each sensitivity scenario relative to a reference atmosphere. 217 refs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5909995
• Report Number(s): UCRL-53903; ON: DE89013887
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
CHLORINE
CLIMATES
ELEMENTS
ENVIRONMENTAL EFFECTS
GLOBAL ASPECTS
HALOGENS
LAWRENCE LIVERMORE LABORATORY
MASS TRANSFER
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
OZONE
TEMPERATURE DEPENDENCE
TRACE AMOUNTS
TWO-DIMENSIONAL CALCULATIONS
US AEC
US DOE
US ERDA
US ORGANIZATIONS