Dust Storms at Nord Rupes 🔭 Full size video: flic.kr/p/2qyG5Ca Credits: Processing: Andrea Luck & Simeon Schmauß CC BY Raw Data: ESA/DLR/FU Berlin #planetaryscience - ThreadSky

stim3on.bsky.social • 183 days ago

Dust Storms at Nord Rupes 🔭

Full size video: https://flic.kr/p/2qyG5Ca

Credits:
Processing: Andrea Luck & Simeon Schmauß CC BY
Raw Data: ESA/DLR/FU Berlin
#planetaryscience

Comments

roughgalaxy.bsky.social•183 days ago

Neat

sciencesocks.bsky.social•183 days ago

Excuse me what!? 😱

Amazing. Over what time span are we seeing this clip?

stim3on.bsky.social•183 days ago

Something between 70 and 90 seconds.
And the width of the image is 90km (and 40km for the cropped version).
These storms are quite big!

stellerarts.com•183 days ago

woahhhhh!

kophoogte.bsky.social•183 days ago

Wow!!!!

rvengosh.bsky.social•183 days ago

AMAZING!!

stim3on.bsky.social•183 days ago

This outbreak of local dust storms was captured by the Mars Express HRSC camera on November 16, 2006.

ESA published this interesting article about the image in 2020:

stim3on.bsky.social•183 days ago

HRSC captures Mars with many different filters, some looking ahead of the spacecraft and some behind.
These images are taken over the course of about one minute, allowing for some nice short duration animations of moving clouds or dust.

stim3on.bsky.social•183 days ago

This animation was originally processed by Andrea Luck who did an amazing job colorizing the individual grayscale filters with an RGB triplet from the middle of the sequence.
Because the different filters from HRSC have very different spectral responses, some flickering remained in the sequence.

stim3on.bsky.social•183 days ago

I used a high pass filter to transfer only the small scale details of his animation to a common background image, eliminating the flicker almost completely.
For the version above I also applied interpolation with RIFE 4.4 to create a smooth video.

stim3on.bsky.social•183 days ago

Finally, a close crop to the top left of the animation showing how the dust clouds get blown away at the sharp edges of the ice sheet and down into the valleys.