Arsia Mons Anomaly?, Recent Mars Express Imagery shows odd feature |
Arsia Mons Anomaly?, Recent Mars Express Imagery shows odd feature |
Oct 1 2018, 03:05 AM
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#16
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Senior Member Group: Members Posts: 1429 Joined: 26-July 08 Member No.: 4270 |
-------------------- -- Hungry4info (Sirius_Alpha)
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Guest_Steve5304_* |
Oct 1 2018, 03:47 AM
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#17
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From 25 Sep 2018. https://www.flickr.com/photos/esa_marswebcam/44942993631/ The spiral clouds normally over the location are totally different. This is a volcanic eruption of some sort or venting. Lots of others taking notice say the same. hopefully we get some better shots. Began on the 19th..considering the size of this it would be equivalent to yellowstone calderaa if it were a full blown event. Yikes. That would be exciting..unlikely. |
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Oct 1 2018, 04:23 AM
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#18
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Senior Member Group: Members Posts: 2516 Joined: 13-September 05 Member No.: 497 |
hopefully we get some better shots. http://www.msss.com/msss_images/latest_weather.html QUOTE Condensate water ice clouds endured above Arsia Mons (southernmost volcano of the Tharsis Montes), signaling a return to seasonal martian norms after the recent planet-encircling dust event. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Guest_Steve5304_* |
Oct 1 2018, 11:49 AM
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#19
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Guests |
Lame if true |
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Oct 1 2018, 12:31 PM
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#20
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
This is a well-known phenomenon that has been well-documented for many decades. If there was any sort of volcanic activity on this scale THEMIS onboard Mars Odyssey as well as other IR instruments in the flotilla of orbital assets would have doubtless observed it many years ago.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Oct 1 2018, 03:20 PM
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#21
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Senior Member Group: Members Posts: 2516 Joined: 13-September 05 Member No.: 497 |
Lame if true So sorry if reality bores you. The VMC image is mostly striking because Arsia Mons is so close to the terminator and the cloud shadow is long. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Oct 1 2018, 03:47 PM
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#22
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
How can we tell if this is just clouds caused by orographic lift, or minor amounts of water vapor escaping the volcano and condensing?
Be interesting to compare Methane levels vs the cloud's appearance/disappearance. This article is very interesting http://www.psrd.hawaii.edu/May11/Mars_volc_timeline.html -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Guest_Steve5304_* |
Oct 1 2018, 03:53 PM
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#23
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Guests |
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Oct 1 2018, 04:12 PM
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#24
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Dr Robbins provided a link to his article to share with us. I believe this is covered under "non-commercial and educational use".
http://about.sjrdesign.net/files/papers/20...es_Personal.pdf -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Oct 1 2018, 04:23 PM
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#25
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
How can we tell if this is just clouds caused by orographic lift, or minor amounts of water vapor escaping the volcano and condensing? Wouldn't we see tiny well-defined vents releasing immediately condensing water vapor in HiRISE images, even if no larger-scale increased surface temperature is detectable? Accompanying gases like CO2, CH4, SO2, H2S, and so on should also be increased, and leave a cover of precipitated minerals typical for residual volcanic activity. Such precipitates should be detectable from orbit. Does there exist any according publication regarding ancient mars volcanoes pointing towards this kind of hints towards ongoing residuals of active volcanism? |
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Oct 1 2018, 05:29 PM
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#26
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Here is a link to the Wikipedia article about lenticular clouds. I'd think, that alternative hypotheses will need to compete with this settings.
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Oct 1 2018, 05:59 PM
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#27
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Solar System Cartographer Group: Members Posts: 10161 Joined: 5-April 05 From: Canada Member No.: 227 |
Any substantial venting would produce changes in atmospheric chemistry which would be detectable by SAM on Curiosity (which routinely does atmospheric analysis) and by MAVEN, and now certainly by TGO. Since there is a history of seeing these clouds, that would show up in the data. If it's not been found, it's not there.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 1 2018, 06:12 PM
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#28
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
In two months, we'll have a seismometer on the surface. The comments here are persuasive that we already know what's going on with Arsia Mons, but it'll be nice to have that added source of information and see if any trembling is happening at any of Mars' gigantic volcanoes.
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Guest_Steve5304_* |
Oct 2 2018, 05:17 PM
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#29
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Guests |
In two months, we'll have a seismometer on the surface. The comments here are persuasive that we already know what's going on with Arsia Mons, but it'll be nice to have that added source of information and see if any trembling is happening at any of Mars' gigantic volcanoes. I believe this is the first of its kind...I think Mars 3 had one on it but crashed. Will be nice to put the issue to rest about those big volcano's and when they were last active. And more importantly tectonics (or lack of) I had read a paper in the 90's already that those volcano's were responsible for periodic heating of the planet, thickening of atmosphere, water washing out on the surface and melting of caps. Which was why i was so excited when i saw this. The paper had very compelling evidence..with previous evidence of violent eruptions.Those are pretty big volcano's and an eruption across the surface would be game changing for the next 100,000 years |
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Oct 2 2018, 07:29 PM
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#30
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Just because ancient volcanic eruptions in a different era change the climate profoundly does not mean that any eruption now would do so. Volcanic eruptions are not a unit event – some of them are thousands of times bigger than others, and we should automatically be suspicious of the likelihood of any profound changes taking place in one human lifetime.
The expected change in martian climate during out lifetimes has to be nearly zero. Tiny probability of great change; greater probability of very small change. The same is true of each given world. These things move slowly. |
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