Figure 7-6Jupiter’s and Saturn’s Upper Layers These graphs display temperature profiles of (a) Jupiter’s and (b) Saturn’s upper regions, as deduced from measurements at radio and infrared wavelengths. Three major cloud layers are shown in each, along with the colors that predominate at various depths. Data from the Galileo spacecraft indicate that Jupiter’s cloud layers are not found at all locations around the planet; there are some relatively clear, cloud-free areas.