Gravitational signature of Jupiter's deep zonal flows

Calculations predict that, if Jupiter's observed zonal flows persist to a d epth similar to 1000 km below the cloud layers (corresponding to a pressure similar to 10 kbar), they will produce gravity anomalies on the order of a few mgal in high-degree zonal components of the gravitational field, refer enced to the field expanded to tenth degree. This signature would be detect able by a low-periapse Jupiter orbiter with a sensitivity to accelerations at the same level as the Galileo orbiter. (C) 1999 Academic Press.