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Titan's greenhouse and antigreenhouse effectsThermal mechanisms active in Titan's atmosphere are discussed in a brief review of data obtained during the Voyager I flyby in 1980. Particular attention is given to the greenhouse effect (GHE) produced by atmospheric H2, N2, and CH4; this GHE is stronger than that on earth, with CH4 and H2 playing roles similar to those of H2O and CO2 on earth. Also active on Titan is an antigreenhouse effect, in which dark-brown and orange organic aerosols block incoming solar light while allowing IR radiation from the Titan surface to escape. The combination of GHE and anti-GHE leads to a surface temperature about 12 C higher than it would be if Titan had no atmosphere.
Document ID
19920059300
Document Type
Reprint (Version printed in journal)
Authors
Mckay, Christopher P. (NASA Ames Research Center Moffett Field, CA, United States)
Pollack, James B. (NASA Ames Research Center Moffett Field, CA, United States)
Courtin, Regis (Paris Observatoire, Meudon, France)
Date Acquired
August 15, 2013
Publication Date
June 1, 1992
Publication Information
Publication: Planetary Report
Volume: 12
Issue: 3, Ma
ISSN: 0736-3680
Subject Category
LUNAR AND PLANETARY EXPLORATION
Distribution Limits
Public
Copyright
Other