Polar motion of Titan forced by the atmosphere

Journal of Geophysical Research: Planets

Volumn 116, Issue 5, 2011, Pages

  Tokano, Tetsuya ^a   Van Hoolst, Tim ^b   Karatekin, Özgür ^b  

^a UNIVERSITY OF COLOGNE   (Germany)

^b ROYAL OBSERVATORY OF BELGIUM   (Belgium)

Author keywords

[No Author keywords available]

Indexed keywords

ANGULAR MOMENTUM; ATMOSPHERIC FORCING; ATMOSPHERIC GENERAL CIRCULATION MODEL; ATMOSPHERIC PRESSURE; POLAR MOTION; SATURN; TITAN; WIND MEASUREMENT;

EID: 79957439111     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/2010JE003758     Document Type: Article

References (34)

1. Achterberg, R. K., B. J. Conrath, P. J. Gierasch, F. M. Flasar, and C. A. Nixon (2008), Observation of a tilt of Titan's middle-atmospheric superrotation, Icarus, 197, 549-555.
2. Barnes, R. T. H., R. Hide, A. A. White, and C. A. Wilson (1983), Atmospheric angular momentum fluctuations, length-of-day changes and polar motion, Proc. R. Soc. London, Ser. A, 387, 31-73. (Pubitemid 13541064)
3. Béghin, C, et al. (2009), New insights on Titan's plasma-driven Schumann resonance inferred from Huygens and Cassini data, Planet. Space Sci., 57, 1872-1888.
4. Bills, B., and F. Nimmo (2008), Forced obliquity and moments of inertia of Titan, Icarus, 196, 293-297.
5. Dehant, V., T. Van Hoolst, O. de Viron, M. Greff-Lefftz, H. Legros, and P. Defraigne (2003), Can a solid inner core of Mars be detected from observations of polar motion and nutation of Mars?, J. Geophys. Res., 108 (E12), 5127, doi:10.1029/2003JE002140.
6. de Viron, O., and V. Dehant (1999), Earth's rotation and high frequency equatorial angular momentum budget of the atmosphere, Surv. Geophys., 20, 441-462.
7. Friedson, A. J., R. A. West, E. H. Wilson, F. Oyafuso, and G. S. Orton (2009), A global climate model of Titan's atmosphere and surface, Planet. Space Sci., 57, 1931-1949.
8. Goldreich, P. M., and J. L. Mitchell (2010), Elastic ice shells of synchronous moons: Implications for cracks on Europa and non-synchronous rotation of Titan, Icarus, 209, 631-638.
9. Grasset, O., C. Sotin, and F. Deschamps (2000), On the internal structure and dynamics of Titan, Planet. Space Sci., 48, 617-636.
10. Grindrod, P. M., A. D. Fortes, F. Nimmo, D. L. Feltham, J. P. Brodholt, and L. Vočadlo (2008), The long-term stability of a possible aqueous ammonium sulfate ocean inside Titan, Icarus, 197, 137-151.
11. Gross, R. S. (2009), Earth rotation variations - long period, in Treatise on Geophysics, vol. 3, pp. 239-294, edited by T. Herring, Elsevier, Amsterdam.
12. Iess, L., N. Rappaport, R. A. Jacobson, P. Racioppa, D. J. Stevenson, P. Tortora, J. W. Armstrong, and S. W. Asmar (2010), Gravity field, shape, and moment of inertia of Titan, Science, 327, 1367-1369.
13. Karatekin, Ö., T. Van Hoolst, and T. Tokano (2008), Effect of internal gravitational coupling on Titan's non-synchronous rotation, Geophys. Res. Lett, 35, L16202, doi:10.1029/2008GL034744.
14. Konopliv, A. S., C. F. Yoder, E. M. Standish, D.-N. Yuan, and W. L. Sjogren (2006), A global solution for the Mars static and seasonal gravity, Mars orientation, Phobos and Deimos masses, and Mars ephemeris, Icarus, 182, 23-50. (Pubitemid 43578178)
15. Lorenz, R. D., B. W. Stiles, R. L. Kirk, M. D. Allison, P. Persi del Marmo, L. Iess, J. I. Lunine, S. J. Ostro, and S. Hensley (2008), Titan's rotation reveals an internal ocean and changing zonal winds, Science, 319, 1649-1651. (Pubitemid 351432498)
16. Mitchell, J. L. (2009), Coupling convectively driven atmospheric circulation to surface rotation: evidence for active methane weather in the observed spin rate drift of Titan, Astrophys. J., 692, 168-173.
17. Mitri, G., and A. P. Showman (2008), Thermal convection in ice-I shells of Titan and Enceladus, Icarus, 193, 387-396.
18. Munk, W. H., and G. J. F. MacDonald (1960), The Rotation of the Earth, Cambridge Univ. Press, New York.
19. Nimmo, F., and B. G. Bills (2010), Shell thickness variations and the longwavelength topography of Titan, Icarus, 208, 896-904.
20. Noyelles, B. (2008), Titan's rotational state. The effects of a forced "free" resonant wobble, Celest. Mech. Dyn. Astron., 101, 13-30.
21. Noyelles, B., A. Lemaître, and A. Vienne (2008), Titan's rotation. A 3-dimensional theory, Astron. Astrophys., 478, 959-970.
22. Roman, M. T., R. A. West, D. J. Banfield, P. J. Gierasch, R. K. Achterberg, C. A. Nixon, and P. C. Thomas (2009), Determining a tilt in Titan's northsouth albedo asymmetry from Cassini images, Icarus, 203, 242-249.
23. Sanchez, B., R. Haberle, and J. Schaeffer (2004), Atmospheric rotational effects on Mars based on the NASA Ames general circulation model: angular momentum approach, J. Geophys. Res., 109, E08005, doi:10.1029/2004JE002254. (Pubitemid 39443837)
24. Sohl, F., W. D. Sears, and R. D. Lorenz (1995), Tidal dissipation on Titan, Icarus, 115, 278-294.
25. Sohl, F., H. Hussmann, B. Schwentker, T. Spohn, and R. D. Lorenz (2003), Interior structure models and tidal Love numbers of Titan, J. Geophys. Res., 108 (E12), 5130, doi:10.1029/2003JE002044.
26. Sotin, C, G. Mitri, N. Rappaport, G. Schubert, and D. Stevenson (2009), Titan's interior structure, in Titan From Cassini-Huygens, edited by R. H. Brown et al., pp. 61-73, Springer, New York.
27. Teanby, N. A., P. G. J. Irwin, and R. de Kok (2010), Compositional evidence for Titan's stratospheric tilt, Planet. Space Sci., 58, 792-800.
28. Tobie, G., O. Grasset, J. I. Lunine, A. Mocquet, and C. Sotin (2005), Titan's internal structure inferred from a coupled thermal-orbital model, Icarus, 2005, 175, 496-502. (Pubitemid 40621542)
29. Tokano, T. (2010), Westward rotation of the atmospheric angular momentum vector of Titan by thermal tides, Planet. Space Sci., 58, 814-829.
30. Tokano, T., and F. M. Neubauer (2005), Wind-induced seasonal angular momentum exchange at Titan's surface and its influence on Titan's length-of-day, Geophys. Res. Lett., 32, L24203, doi:10.1029/2005GL024456. (Pubitemid 43239929)
31. 2 mass exchange between the atmosphere and polar caps on Mars' rotation, J. Geophys. Res., 107 (E7), 5055, doi:10.1029/2000JE001539.
32. Van Hoolst, T. (2007), The rotation of the terrestrial planets, in Treatise on Geophysics, vol. 10, pp. 123-164, edited by T. Spohn, Elsevier, Amsterdam.
33. Van Hoolst, T., and V. Dehant (2002), Influence of triaxiality and secondorder terms in flattenings on the rotation of terrestrial planets, Phys. Earth Planet. Inter., 134, 17-33. (Pubitemid 35307809)
34. Van Hoolst, T., N. Rambaux, Ö. Karatekin, and R.-M. Baland (2009), The effect of gravitational and pressure torques on Titan's length-of-day variations, Icarus, 200, 256-264.