1 / 7

Depth of a Strong Jovian Jet From a Planetary-Scale Disturbance

Depth of a Strong Jovian Jet From a Planetary-Scale Disturbance. Sanchez-Lavega ( Universidad del Pa i s Vasco, Spain), G.S. Orton (JPL) , et al. 24 Jan. 2008 issue, vol. 451.

flavian-myles
Download Presentation

Depth of a Strong Jovian Jet From a Planetary-Scale Disturbance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Depth of a Strong Jovian Jet From a Planetary-Scale Disturbance Sanchez-Lavega (Universidad del Pais Vasco, Spain), G.S. Orton (JPL), et al. 24 Jan. 2008 issue, vol. 451

  2. HST images on 25 Mar 2007 fortuitously captured the onset of an uncommon planetary-scale disturbance in the peak of the highest speed Jovian jet at 23.5 deg N latitude. In the peak of the jet, a small, round bright cloud with a size of 500 km (plume B) grew rapidly. The second plume, plume A, emerged less than 9.3 hours later at a distance of 63,000 km (55 deg longitude) to the east of plume B. Both plumes grew to a size of 2000 km in 1.3 days. If Plume B triggered Plume A then the propagation velocity of the triggering process would have to travel at 1.5 times the sound speed.

  3. Plumes and their tails retrieved at high altitude (NASA-IRTF, 2.3 micron methane filter).

  4. Multi-wavelength imaging of the NTB Disturbance 5 April 2007 Two high plumes Trailing “wake” from each is dark, bright at 5 μm Remove upper-level clouds RGB, Zac Pujic NASA IRTF 1.58 μm 2.17 μm 4.78 μm 15 10 5 15 10 5 Centric Latitude °N 15 10 5 220 210 200 190 180 170 160 150 140 130 Longitude°W (System III)

  5. ←missing! NH3 ice? Near-Infrared Survey of NTBs Outbreak Plumes- Full data set

  6. Convective cell modeling is able to fit the observed cloud tops of the plumes. The new observations are consistent with a wind extending deep into the atmosphere, about 100 km below the level reached by solar radiation. Corresponds to 5-7 bars pressure and at the base of the presumed water cloud. Thus the energy source of the disturbance must arise from an internal heat source.

  7. HST press release

More Related