Geographic Control of Titan's Mid-Latitude Clouds

Author:

Roe Henry G.123,Brown Michael E.123,Schaller Emily L.123,Bouchez Antonin H.123,Trujillo Chadwick A.123

Affiliation:

1. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.

2. Caltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125, USA.

3. Gemini Observatory, Hilo, HI 96720, USA.

Abstract

Observations of Titan's mid-latitude clouds from the W. M. Keck and Gemini Observatories show that they cluster near 350°W longitude, 40°S latitude. These clouds cannot be explained by a seasonal shift in global circulation and thus presumably reflect a mechanism on Titan such as geysering or cryovolcanism in this region. The rate of volatile release necessary to trigger cloud formation could easily supply enough methane to balance the loss to photolysis in the upper atmosphere.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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