Rapid and extensive surface changes near Titan's equator: evidence of April showers.
Science
; 331(6023): 1414-7, 2011 Mar 18.
Article
em En
| MEDLINE
| ID: mdl-21415347
ABSTRACT
Although there is evidence that liquids have flowed on the surface at Titan's equator in the past, to date, liquids have only been confirmed on the surface at polar latitudes, and the vast expanses of dunes that dominate Titan's equatorial regions require a predominantly arid climate. We report the detection by Cassini's Imaging Science Subsystem of a large low-latitude cloud system early in Titan's northern spring and extensive surface changes (spanning more than 500,000 square kilometers) in the wake of this storm. The changes are most consistent with widespread methane rainfall reaching the surface, which suggests that the dry channels observed at Titan's low latitudes are carved by seasonal precipitation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Saturno
/
Metano
Idioma:
En
Revista:
Science
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos