Deep winds on Jupiter as measured by the Galileo probe

摘要: The Doppler Wind Experiment on the Galileo probe provided first in situ data wind speeds Jupiter's atmosphere. Initial analysis of results indicated that increase with depth, rather than decaying to zero below cloud tops or remaining relatively constant as had previously been assumed. But this earlier was subject several potential sources error, highlighted by fact measured at did not seem match those inferred from tracking clouds images obtained Voyager spacecraft. Here we report new analyses use a corrected treatment timing errors, adopt (rather predicted) descent trajectory, and incorporate calibration instrumentation takes into account unexpectedly high temperatures encountered probe. We determine (700-mbar level) range 80–100 m s^(-1), agreement tracking; speed increases dramatically between 1 4 bar, then remains nearly ~170 s^(-1) down 21-bar level. implies latitudinal density gradient 0.5% per degree 1–2 bar altitude range, but whether these winds are driven internal heat absorbed sunlight uncertain.