Vertical shears in Saturn's eastward jets at cloud level

  • Garc??a-Melendo E
  • S??nchez-Lavega A
  • Rojas J
 et al. 
  • 4

    Readers

    Mendeley users who have this article in their library.
  • 12

    Citations

    Citations of this article.

Abstract

We have measured the vertical shear of the zonal winds in the cloud-haze upper layer of Saturn using Cassini ISS images obtained in the filters MT2 (753 nm methane absorption band, sensitive to the upper haze) and CB2 (adjacent continuum, sensitive to the lower cloud). Our radiative transfer models indicate that at the eastward jet peaks these filters are sensing clouds at the respective ???100 mbar and ???350 mbar levels. We have found a systematic velocity difference between those filters of 15 to 20 m s-1 only in the eastward jets peaks (27?? S, 42?? S, 55?? S and 70?? S) which implies a vertical shear of ???10-20 m s-1 H-1. Our overall results agree with those derived from the thermal-wind relationship using CIRS thermal data [Fletcher, L.N., and 13 colleagues, 2008. Science 319, 79-81] and with previous equatorial measurements [S??nchez-Lavega, A., Hueso, R., P??rez-Hoyos, S., 2007. Icarus 187, 510-519]. ?? 2009 Elsevier Inc. All rights reserved.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Enrique Garc??a-Melendo

  • Agust??n S??nchez-Lavega

  • J. F. Rojas

  • S. P??rez-Hoyos

  • R. Hueso

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free