Underwater Dunes - Incredible Image!

Status
Not open for further replies.
S

spacefire

Guest
oh ok. still, I don't think there's liquid water there.<br />this is in the northern regions, so it is pretty cold there to begin with. Indeed, if this "Chasma Borealis belons to the Vastitas Borealis area, they would be in a depression which would allow for higher atmospheric pressure. Still, that doesn't mean ice becomes water unless something is heating up the area from below-which obviously isn't <br />happening. <br />I've looked at many photos from MGS and some of the things you see on Mars are amazing-and eye fooling. <div class="Discussion_UserSignature"> <p>http://asteroid-invasion.blogspot.com</p><p>http://www.solvengineer.com/asteroid-invasion.html </p><p> </p> </div>
 
C

conradk1

Guest
spacefire,<br /><br />I know what you mean, there are many eye-fooling images coming from Mars however I am looking at many pieces of information as opposed to just one image.<br /><br />This is the info: (sorry for the repetition for those who have read this before but this just puts it all on one page):<br /><ol><br /> <li> The altitude in Chasma Boreale where the river lies is 5km (3.11 miles) below the mean Martian altitude which means that the atmospheric pressure is about 9 or 10 millibars. At this pressure water boils at about 7 degC (44.6 degF).<br /> <li> Recent volcanic activity has been detected in the northern region. Although there may be no active volcanic activity above the surface today it is quite possible that the ground temperature in the Chasma Boreale basins is warm enough to melt water ice.<br /> <li>This water vapor chart indicates a high concentration of water vapor at the same latitude at the Chasma Boreale basins.<br /> <li> In the ice pack above the basin there are vents that appear to be created (MOC image E03-01758) by the release of steam indicating subsurface heating.<br /> <li> In this image it is very apparent that the defrosting of the dunes is not uniform over the 8 day period when these images where captured (MOC images M21-01415 and M21-01920). The frost on the dunes closest to the river is vanishing faster than the frost on the dunes further away. This area is out in the open so there would be no difference in the amount of sunlight reaching both locations which are only a few hundred feet apart.<br /> <li> In the same two images (MOC images M21-01415 and M21-01920) steam can clearly be seen rising from the locati</li></li></li></li></li></li></ol>
 
S

spacefire

Guest
your source isn't sure there is any volcanic activity on Mars today. 'Recent' on a Martian scale means tens of million so years ago. You do paint a pretty interesting picture, but let's not be blinded by our desire to find surface water on Mars and stretch available data.<br />Are there any infrared photos of that area? <div class="Discussion_UserSignature"> <p>http://asteroid-invasion.blogspot.com</p><p>http://www.solvengineer.com/asteroid-invasion.html </p><p> </p> </div>
 
C

conradk1

Guest
spacefire,<br /><br />Thanks, I found some infrared images. They look really good! Notice how in the first image (V12060004) the ground and dunes are COVERED in frost but are completely frost free and warmer in the location that I outlined as the river (Point B). I think the second image (V12397002) pretty much makes this and the eight points I have outlined in my posting above, proof of running water on Mars! <br /><br />Image 1 /> http://themis-data.asu.edu/img/color/V12060004?band=321&ext=JPEG&stretch=H3 <br />http://themis-data.asu.edu/img/V12060004?image=V12060004&band=321&stretch=H3&tab=1 <br /><br />Image 2 /> http://themis-data.asu.edu/img/newimg/V12397002?band=3&ext=JPEG&stretch=H3 <br />http://themis-data.asu.edu/img/V12397002?image=V12397002&band=3&stretch=H3&tab=1 <br /><br />Image 3 /> http://themis-data.asu.edu/img/newimg/V05732011?band=3&ext=JPEG&stretch=H3 <br />http://themis-data.asu.edu/img/V05732011?image=V05732011&band=2&stretch=H3&tab=1 <br /><br />Image 4 /> http://themis-data.asu.edu/img/color/V04983008?band=321&ext=JPEG&stretch=S2 <br />
 
Status
Not open for further replies.

ASK THE COMMUNITY