Planetary Atmospheres
Cover Page/Proposal Summary
ROSS-00 NRA 00-OSS-01
Date Due: 4/28/2000
This proposal shall be used and disclosed for evaluation purposes only, and a copy of this Government notice shall be applied to any reproduction or abstract thereof. Any authorized restrictive notices that the submitter places on this proposal shall also be strictly complied with. Disclosure of this proposal for any reason outside the Government evaluation purposes shall be made only to the extent authorized by the Government. |
Proposal Type: New Proposal |
Proposal Category: Laboratory |
Major Equipment Proposal? No |
Do you intend to submit an Education/Public Outreach (E/PO) proposal? No |
Proposal Title: |
Kinetics of the Thermochemical Reactions Important in the Venus Atmospheric Sulfur Cycle |
Abbreviated Proposal Title: |
Kinetics of the Venus Sulfur Cycle |
Principal Investigator: |
Dr. Bruce Fegley Jr. Department of Earth & Planetary Sci. Washington University One Brookings Dr. Campus Box 1169 St. Louis, MO 63130-4899 Phone: 314-935-4852 Fax: 314-935-7361 E-mail: bfegley@levee.wustl.edu |
Signature | Date |
_____________________________________ | ____________ |
Co-Investigators and Collaborators: | |||
Type | Name | Affiliation | |
Sci Collab | Dr. Goestar Klingelhoefer | Johannes Gutenberg Universitat |
Proposal Summary:
We propose to continue using various experimental techniques and
theoretical models to study thermochemical reactions important for the
present (and past) atmospheric sulfur cycle on Venus. These
experiments and models are important for understanding the abundances
and speciation of sulfur gases in Venus' sub-cloud atmosphere, the
maintenance of the global sulfuric acid cloud cover, the roles played
by chemical weathering reactions and volcanism in the atmospheric
sulfur cycle, for interpreting results from past space missions to
Venus (Pioneer Venus, Magellan, Galileo flyby, Venera, and Vega), for
interpreting results from Earth-based and Earth-orbital telescopic
observations, and for the design of new space missions to Venus.
Emphasis will be placed on four tasks: (1) experimental study of
production of reduced sulfur gases (carbonyl sulfide, hydrogen
sulfide, sulfur vapor) via chemical weathering of iron sulfides, (2)
experimental study of loss of sulfur dioxide via chemical weathering
of calcium-bearing minerals, (3) theoretical modeling of the
volcanically outgassed sulfur gases, and (4) theoretical modeling of
volcanically outgassed volatile metallic phases containing sulfur and
the related elements selenium and tellurium.
Certification of Compliance with Applicable Executive Orders and U.S. Code
By submitting the proposal identified in this Cover Sheet/Proposal Summary in response to this NRA or AO, the Authorizing Official of the proposing institution (or the individual proposer if there is no proposing institution) as identified below:
Willful provision of false information in this proposal and/or its supporting documents, or in reports required under an ensuing award, is a criminal offense (U.S. Code, Title 18, Section 1001).