| 1999
Fall Meeting December 13-17, 1999
(Mon-Fri) Sponsored by: |
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| 1999
Fall Meeting December 13-17, 1999
(Mon-Fri) Sponsored by: |
|
A03: New Results From CRISTA's Second Mission |
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| Photo of CRISTA-SPAS-2 shortly after its release from the Space Shuttle Discovery on August 7, 1997 over northwest Canada. |
In August of 1997, the crew of the space shuttle launched the ASTRO-SPAS satellite on the 8-day CRISTA-SPAS 2 mission. Included in the payload complement was the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiment with the objective of measuring the distribution and transport of key trace gases in the lower thermosphere and middle atmosphere. CRISTA measured limb-scan intensity profiles in the wavelength region from 5.3 to 69 mm of 14 trace gases as well as temperature. CRISTA is unique in its ability to make spectroscopic observations with high spatial resolution. During the second mission this ability was further enhanced by actively controlling the spacecraft attitude to produce dense measurement grids over specific geographic regions. The geophysical conditions for the second flight were highly complementary to those of the first flight, in November 1994, and provided the opportunity for extensive observations of the summer polar mesosphere. This special session will present the latest results from the analysis of these data. Invited and contributed papers will include results from the upper troposphere to the thermosphere and will provide new insight into the structures, dynamics, and photochemistry of the middle atmosphere. Examples of topics to be included are upper tropospheric H2O distribution, observations of high tropical clouds, temperature and O3 validation with ground-based measurements, type II PSC formation and polar chemistry, influence of aerosols on NOy partitioning, convective gravity waves in the tropical stratosphere, interaction of tides and planetary waves, and thermospheric CO2 and O densities. Complementary and related results will be solicited from the ITM and stratospheric communities.
Conveners: Stephen Eckermann, Naval Research Laboratory, Washington, DC 20375 USA; Tel: +1-202-404-1299; Fax: +1-202-404-8090; E-mail: eckerman@ismap4.nrl.navy.mil; Klaus Grossmann, Department of Physics, University of Wuppertal, D-42119 Wuppertal, Germany; Tel: +49-202-4392603; Fax: +49-202-4392680; E-mail: gross@wpos2.physik.uni-wuppertal.de
The deadline for submissions to this session has passed. A list of submitted abstracts can be found at the AGU Fall Meeting website.
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