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Arsia Mons Anomaly?, Recent Mars Express Imagery shows odd feature
Hungry4info
post Sep 25 2018, 12:02 AM
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Is that a Plume on Arsia Mons?
https://scilogs.spektrum.de/go-for-launch/i...-on-arsia-mons/

Images of the Tharsis region show the emergence of a new prolonged feature that appears to cast a long shadow. It is not visible in this attached image from 06 August 2018.
Attached Image


Then we can see something newish near Arsia Mons (the vertical streak) in this image from 19 Sep 2018.
Attached Image


And then most striking is this image from 23 Sep 2018, where it appears that a significant shadow is cast (in the direction of the streak in the last image, admittedly).
Attached Image


I'm not familiar enough with Martian meteorology to know if this is just a normal occurrence, but it does look weird, at least to me. Hopefully someone will have ideas. If the answer to this is obvious then feel free to lock and/or delete the thread.


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djellison
post Sep 25 2018, 12:47 AM
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QUOTE (Hungry4info @ Sep 24 2018, 04:02 PM) *
Is that a Plume on Arsia Mons?


Just a cloud casting a shadow. It's been seen before.
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- Hungry4info   Arsia Mons Anomaly?   Sep 25 2018, 12:02 AM
- - Explorer1   A 2015 image shows something similar, though less ...   Sep 25 2018, 12:16 AM
|- - Hungry4info   QUOTE (Explorer1 @ Sep 24 2018, 07:16 PM)...   Sep 25 2018, 01:35 AM
- - djellison   QUOTE (Hungry4info @ Sep 24 2018, 04:02 P...   Sep 25 2018, 12:47 AM
- - mcaplinger   Clouds around the Tharsis volcanoes have been obse...   Sep 25 2018, 01:13 AM
- - nprev   I think that it was an excellent 'teachable mo...   Sep 25 2018, 05:07 AM
|- - JRehling   QUOTE (nprev @ Sep 24 2018, 10:07 PM) It...   Sep 27 2018, 08:07 PM
- - Floyd   Hungry4info--Not clutter, a learning experience fo...   Sep 25 2018, 10:56 PM
- - cndwrld   I work on the Mars Express mission. I can tell you...   Sep 27 2018, 01:10 PM
- - Hungry4info   The most recent image of Arsia Mons, from 24 Sep. ...   Sep 27 2018, 09:58 PM
|- - JRehling   Wow, that cloud is interesting. The total absence ...   Sep 28 2018, 11:54 PM
- - nprev   Orographic 'trail clouds' from the Tharsis...   Sep 29 2018, 06:11 AM
- - dvandorn   Hmm... I know dust storms "puff up" Mars...   Sep 29 2018, 04:25 PM
- - Steve5304   I dunno...looks pretty convincing to me...some sor...   Oct 1 2018, 02:38 AM
- - Steve5304   Went back to 2009 it was visible also almost exact...   Oct 1 2018, 02:59 AM
- - Hungry4info   From 25 Sep 2018. https://www.flickr.com/photos/es...   Oct 1 2018, 03:05 AM
|- - Steve5304   QUOTE (Hungry4info @ Oct 1 2018, 03:05 AM...   Oct 1 2018, 03:47 AM
|- - mcaplinger   QUOTE (Steve5304 @ Sep 30 2018, 07:47 PM)...   Oct 1 2018, 04:23 AM
|- - Steve5304   QUOTE (mcaplinger @ Oct 1 2018, 05:23 AM)...   Oct 1 2018, 11:49 AM
|- - mcaplinger   QUOTE (Steve5304 @ Oct 1 2018, 03:49 AM) ...   Oct 1 2018, 03:20 PM
|- - Steve5304   QUOTE (mcaplinger @ Oct 1 2018, 03:20 PM)...   Oct 1 2018, 03:53 PM
- - nprev   This is a well-known phenomenon that has been well...   Oct 1 2018, 12:31 PM
|- - serpens   QUOTE (nprev @ Oct 1 2018, 12:31 PM) This...   Oct 4 2018, 02:04 AM
- - hendric   How can we tell if this is just clouds caused by o...   Oct 1 2018, 03:47 PM
|- - Gerald   QUOTE (hendric @ Oct 1 2018, 05:47 PM) Ho...   Oct 1 2018, 04:23 PM
- - hendric   Dr Robbins provided a link to his article to share...   Oct 1 2018, 04:12 PM
- - Gerald   Here is a link to the Wikipedia article about lent...   Oct 1 2018, 05:29 PM
- - Phil Stooke   Any substantial venting would produce changes in a...   Oct 1 2018, 05:59 PM
|- - JRehling   In two months, we'll have a seismometer on the...   Oct 1 2018, 06:12 PM
|- - Steve5304   QUOTE (JRehling @ Oct 1 2018, 07:12 PM) I...   Oct 2 2018, 05:17 PM
|- - JRehling   Just because ancient volcanic eruptions in a diffe...   Oct 2 2018, 07:29 PM
|- - Paolo   QUOTE (Steve5304 @ Oct 2 2018, 07:17 PM) ...   Oct 2 2018, 07:38 PM
- - PaulH51   And another from a few days ago? poorly convert...   Oct 13 2018, 10:40 AM
- - nogal   Dated Oct 25th, here is an update from Mars Expres...   Oct 25 2018, 04:16 PM
|- - nprev   QUOTE (nogal @ Oct 25 2018, 09:16 AM) Dat...   Nov 9 2018, 12:27 AM
|- - cndwrld   QUOTE (nprev @ Nov 9 2018, 01:27 AM) I as...   Nov 9 2018, 01:13 PM
- - wood_s   FYI, we've put up a short web article about it...   Oct 25 2018, 04:23 PM
- - Steve5304   So...lets ask some questions here as the phenomeno...   Nov 6 2018, 05:18 PM
|- - mcaplinger   QUOTE (Steve5304 @ Nov 6 2018, 09:18 AM) ...   Nov 6 2018, 08:49 PM
- - ectoterrestrial   Without advocating for the Arsia complex as a sour...   Nov 7 2018, 05:03 AM
- - hendric   Is Arsia Mons the only place with lava tube skylig...   Nov 8 2018, 08:44 PM
|- - Ron Hobbs   QUOTE (hendric @ Nov 8 2018, 12:44 PM) Is...   Nov 9 2018, 01:41 AM
- - hendric   I found a paper by Mike from a decade (!) ago....   Nov 9 2018, 09:31 PM
|- - JRehling   This famous (in my mind, anyway) image taken durin...   Nov 10 2018, 04:15 PM
- - nprev   ADMIN MODE: This thread is right on the knife edge...   Nov 13 2018, 05:14 PM
|- - ectoterrestrial   Changing course... Is there a limitation on conve...   Nov 16 2018, 06:02 AM
|- - mcaplinger   QUOTE (ectoterrestrial @ Nov 15 2018, 10...   Nov 16 2018, 07:08 AM
|- - mcmcmc   QUOTE (mcaplinger @ Nov 16 2018, 08:08 AM...   Nov 16 2018, 10:40 AM
||- - mcaplinger   QUOTE (mcmcmc @ Nov 16 2018, 02:40 AM) wh...   Nov 16 2018, 02:36 PM
||- - atomoid   QUOTE (mcaplinger @ Nov 16 2018, 06:36 AM...   Nov 17 2018, 02:00 AM
|- - ectoterrestrial   QUOTE (mcaplinger @ Nov 16 2018, 12:08 AM...   Nov 16 2018, 09:28 PM
- - Gerald   The do, as far as possible, first with the heat sh...   Nov 16 2018, 02:06 PM

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