Subsonic Aircraft Contrail and Cloud Effects Special Study

Project Description
The Atmospheric Aerosol Chemical Composition Measurements for the
Subsonic Aircraft: Contrail and Cloud Effects Special Study (SUCCESS)
was an airborne expedition conducted aboard the NASA Ames DC-8
research aircraft during April/May 1996. The purpose of this project
was to better determine the radiative properties of cirrus clouds and
contrails so that satellite observations can more reliable assess
their impact on the Earth's radiation budget.
The goals of the program included determining how cirrus clouds form,
whether exhaust from subsonic aircraft affects their formation, and if
the changes might be climatologically significant. Measurements also
were performed to better determine the chemical characteristics of
gaseous and particulate exhaust products from subsonic aircraft and
their temporal evolution in the upper troposphere. The Global
Atmospheric Chemistry Group at the University of New Hampshire is
conducting measurements of the detailed chemical composition of the
atmospheric aerosol. For further information please see
http://www.gac.sr.unh.edu/.
[This summary was derived from The Global Atmospheric Chemistry Group
Complex Systems Research Center Institute for the Study of Earth, Oceans, and
Space University of New Hampshire, Durham, NH WWW pages.]