"The Lake"

[Marsrocks]

I've always intended to look at "The Lake" image. I finally got a chance. This one appears in lots of youtube videos. It turns out this one is in an extremely cold area near the south polar region.

There is still no higher resolution image available of it than this one:



Here it is in comparison to the CTX and the ESA:



"The Lake"
M0901354
barsoom.msss.com/moc_gallery/m07_m12/images/M09/M0901354.html

viewer.mars.asu.edu/planetview/inst/ctx/P11_005210_1035_XN_76S293W#start

Google Earth -mars:
78°38'7.28"S 68° 5'31.90"E

[Marsrocks]

Larger region:



Regional images from CTX including crater to check depth contour:



CTX full captures vs. MOC at 50%:



CTX full captures vs. MOC at 50% and inverted:




None of this, of course, explains why "the lake" is so bright in the MOC and so dark in the CTX and ESA images. Did the camera invert the "lake" in the MOC image?

[Marsrocks]

www.msss.com/moc_gallery/m07_m12/images/M09/M0901354.html

[Marsrocks]

[Marsrocks]

Though the ctx view is very confusing - it is clear to me after long study of the nearest crater in context even with ctx view, that the lake is definitely a depression feature situated directly adjacent to an elevated region.

The moc image is more highly detailed and easier to read.

The albedo differences very possibly occur as a result of the ctx shot being taken in a different season than the moc when the "lake" was empty of water or ice in the later image.

[Marsrocks]

Here is another "lake" area nearby (also near south polar area):

www.msss.com/moc_gallery/e07_e12/images/E09/E0900020.html


78°44'11.51"S 61°49'12.91"E

[Marsrocks]

Here is another, we'll call lake R13:

ida.wr.usgs.gov/html/r13001/r1300182.html

78°54'27.86"S 65°10'19.71"E

If this is a "lake" it looks empty:

[Marsrocks]

It looks like hirise may have one - I'll see what I can get from this next chance I get:

PSP_005685_1010

www.uahirise.org/PSP_005685_1010

[Marsrocks]

Cool - there is a hirise image of the original "lake" feature from moc:
M0901354


www.msss.com/moc_gallery/m07_m12/images/M09/M0901354.html

It is at this link:

www.uahirise.org/ESP_023024_1010

The image is titled:

Smooth South Polar Region Seen in MOC Image M09-01354

[Marsrocks]

Some Martian landscape here:

www.boston.com/bigpicture/2009/11/martian_landscapes.html

[Marsrocks]

McEwen requested that it be targeted:

www.uahirise.org/hiwish/view/13056