A very low signal is expected, but detection of an elevated signal would suggest the presence of anomalously warm regions of the surface. Such regions could be caused either by unusual surface materials or by the presence of recent ice-volcanic activity. The remaining five observations are returned by PPR, with a shift in focus to Jupiter's atmosphere. Two observations return polarimetry measurements of the atmosphere, which will provide scientists with information on the structure and temperature of its upper levels. Next, PPR returns a thermal map of recently-merged white ovals in Jupiter's atmosphere.
White ovals are storms that occur between two adjacent zonal jet streams, and last for decades.
Two of them have merged within the past few months to create a single storm. Finally, PPR returns two scans of Jupiter's limb. These scans are designed to detect upwellings in Jupiter's atmosphere. Home Send your feedback to the Webmaster .