Actions for O{sub 3} and stratospheric H{sub 2}O radiative forcing resulting from a supersonic jet transport emission scenario [electronic resource].

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O{sub 3} and stratospheric H{sub 2}O radiative forcing resulting from a supersonic jet transport emission scenario [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
19 pages : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The tropospheric radiative forcing has been calculated for ozone and water vapor perturbations caused by a realistic High Speed Civil Transport (HSCT) aircraft emission scenario. Atmospheric profiles of water vapor and ozone were obtained using the LLNL 2-D chemical-radiative-transport model (CRT) of the global troposphere and stratosphere. IR radiative forcing calculations were made with the LLNL correlated k-distribution radiative transfer model. UV-Visible-Near IR radiative forcing calculations were made with the LLNL two stream solar radiation model. For the case of water vapor the IR and Near IR radiative forcing was determined at five different latitudes and then averaged using an appropriate latitudinal average to obtain the global average value. Global average values of radiative forcing were approximately 1.2--2.6 10{sup −3} W/m², depending on the background atmospheric water vapor profile. This result is consistent with prior published values for a similar aircraft scenario and supports the conclusion that the water vapor climate forcing effect is very small. The radiative forcing in the IR and UV-Visible spectral ranges, due to the ozone perturbation, was calculated for the globally averaged atmosphere. Global average values of the radiative forcing were 0.034 W/m² for the UV-Visible spectral range and 0.006 W/m² for the IR spectral range (0.04 W/m² total). This result is also consistent with the range of published values obtained for a similar HSCT scenario. As was the case for water vapor, the ozone forcing is too small to be of major consequence.
Report Numbers
E 1.99:ucrl-jc--123608
E 1.99: conf-960870--1
conf-960870--1
ucrl-jc--123608
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1996.
"ucrl-jc--123608"
" conf-960870--1"
"DE96010830"
International radiation symposium: current problems in atmospheric radiation, Fairbanks, AK (United States), 19-24 Aug 1996.
Grant, K.E.; Penner, J.E.; Grossman, A.S.; Kinnison, D.E.; Connell, P.S.; Tamaresis, J.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14141418