Jupiter Cloud Sequence from Voyager 2
When the Voyager 2 mission flew by the planet Jupiter in July of 1979, a sequence of full disk images were taken of the planet. Assembled with proper spatial and temporal registration, the sequence could produce fourteen distinct images suitable for wrapping around a sphere.
But the time steps between images were large and exhibited significant jumping and data gaps. The solution was to create additional images between the existing set by interpolation. But simple interpolation would not work due to significant changes between the images.
To solve this, we interpolated between the images using the velocity vector field of the cloud images. The velocity vector field was computed by performing a 2-dimensional cross-correlation (Wikipedia: Cross-correlation) between the images. This velocity field was checked against Jupiter velocity profiles from the scientific literature and agreement was excellent. With the addition of a simple vortex flow at the location of the Great Red Spot, the interpolation process was used to generate intermediate images, increasing the total number of images from 14 to 220 and resulting in a smoother animation.
IMPORTANT NOTE: These images are for visualization purposes only. They are not suitable for scientific analysis.
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio
MissionsThis visualization is related to the following missions:
Datasets used in this visualization
Voyager-2ID: 647Mosaic Collected with Imaging Science Subsystem
Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.