Deep zonal winds can result from shallow driving in a giant-planet atmosphere

A simple model shows that acceleration of Jupiter and Saturnʹs multiple jets at altitudes confined near the top of the adiabatic region (e.g., at a few bars pressure) can produce jets that penetrate deeply into the molecular envelope. This result disproves the common assertion that jet acceleration near the outer margin can only produce zonal winds that are confined to these outer layers.