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Fred
Posts: xxx
Reply: 81
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KPM
Posts: 44
Reply: 82
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hortonheardawho
Posts: 388
Reply: 83
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Posted: August 21, 2008 12:12 PM |
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mann, you are correct in reply 78 -- ice or at least frost.
Sol 43-83 comparison of nearby depression:

The filters are different, the lighting is different - heck, the lander has tilted a degree -- but a careful registration and color balance seems to indicate a buildup of something lighter in the depression. Ice? Sure, why not? |
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mann
Posts: xxx
Reply: 84
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Posted: August 21, 2008 11:59 PM |
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The area is called "jumping cow", and they do seem to be watching it carefully.
[link]
There seems to be several sequences taken of the small icy depression, throughout the sol.
i will attempt, to put together something to see if the icy spot frosts over, as with in my image, i can only see ice at the fringes of some of the rocks, but in yours and in sol 84 images, its spreading. |
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brian
Posts: xxx
Reply: 85
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Posted: August 22, 2008 12:51 AM |
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Hi Mann,
Stu put a nice animation of this on his site.
http://phoenixpics.wordpress.com/2008/08/21/more-martian-frost/
It almost presents as a sorted stone circle with the frosty patch protected to a degree by the hollow. It will be intersting to watch other patches develop and grow as the winter approaches, for as long as Phoenix lasts. |
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hortonheardawho
Posts: 388
Reply: 86
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Posted: August 22, 2008 5:20 AM |
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Brian, define "nice". |
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brian
Posts: 19
Reply: 87
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Posted: August 22, 2008 7:08 AM |
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Pleasing and agreeable, done with skill. |
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Fred
Posts: xxx
Reply: 88
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Posted: August 22, 2008 7:14 AM |
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Brian,
It is interesting to hear a layman’s prospective to frost formation on Mars. In the first image with frost the formation was on the hills with the hollows frost free. It looks like the areas of high porosity cool faster with the hollows showing a higher thermal inertia.
The image of ice in the hollow would be an afternoon phenomena as the hollows would be the coldest areas at that time. This is the opposite as we see on Earth as fall approaches. The wind instrument showed frost development with a steady 11 mph wind, this is a head scratcher with that, “Dry,” air.
The images of possible ice patches in the images several meters away from the lander are another curiosity. They are either residual ice exposed on the surface from last winter or moist air eruptions from between the polygons, take your pick.
Fred |
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d
Posts: 831
Reply: 89
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Posted: August 22, 2008 10:12 AM |
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Fred>>>
You're correct! Its phenomena alright.
http://www.michaelbach.de/ot/
yt
dx
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Fred
Posts: xxx
Reply: 90
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Posted: August 22, 2008 10:20 AM |
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Dx,
Are you suggesting that we may not be seeing what we think we are seeing?
Fred
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Fred
Posts: xxx
Reply: 91
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Posted: August 22, 2008 12:09 PM |
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Dx,
Do not jab and run if that was your intent. If I am talking about geology that is fine. If I am talking about the state of the universe, that’s fine. If I am talking atmospheric sciences do no go there.
PS: If I am talking imaging in general terms do not go there either. I learned from the elephant man.
Fred
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danajohnson
Posts: 487
Reply: 92
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Posted: August 22, 2008 1:22 PM |
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Fred:
What process were you using if that was yours? I haven't time to do the effect myself as yet. I understand a variation of contrast and brightness, perhaps. Was this in XNView/ Don't let me steal any secrets, here. I can see the secondary figure for the atmospheric 'sleet', but the arm is of a type which resists the sleet. Waking this machine in the dead of winter is the real treat. A hanging basket of ice/dry ice [possibly, even in the direct sunlight.
Next time they'll know to set up a circus of events, for the mad and compulsive Mars fans. A series of devices could explore this environment at night and in the winter, with some careful pre-planning.
The area around the lander, even six feet away would still be a local 'hot-spot', and still we could learn so much from year round weather and soil observation.
A refractometer would probably work on the ice, as a cheap possibility, distinguishing varieties of ice chemistry and types.
.

.

.
Just checking into this as I always study the teacher with the lessons. I believe I understand it, just watching the back-stage show as well.
We have a freezing rain like this, during extreme shifts in weather. This seems to be very adhesive? Are you sure this is really ice? |
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Fred
Posts: xxx
Reply: 93
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Fred
Posts: xxx
Reply: 94
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Posted: August 22, 2008 1:49 PM |
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Dana,
Calm down, that was a NASA image. They do throw us a bone from time to time.
This image was taken 2 meters above the ground with an 11 mph wind we know. This would take out the .00000003 per cent water vapor. This visable data shows .900007654 at least.
No secrets here, just an idiot that saw this long before. Good to speak with you again brother.
Fred
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Fred
Posts: xxx
Reply: 95
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Posted: August 22, 2008 3:06 PM |
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Now that Dana has come into the discussion we should talk about reality.
Dana looks and says what he thinks, yes I said he. Those that read will pick the good parts. I pick some Dana images sometime. The man can see things. When it comes to images Hort is the best. No matter the color we have no visibility restrictions.
Doug has his head devoted to Steve Squires rear. Ask for a diagram and I will post. He will not come on this forum and debate, he knows already. Don may be worth saving we will see.
Stu, you are still just a journalist.
Me, I is the best weatherman.
Fred |
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Fred
Posts: xxx
Reply: 96
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Posted: August 22, 2008 3:18 PM |
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I think it is time for a Dana crop of an MRO.
Yes brother, I see a snow gun. You is the man.
Fred
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dx
Posts: 831
Reply: 97
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Posted: August 22, 2008 3:22 PM |
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folks>>>
Its ice as presented in the first post...what are you all about Fred? There is no mistake about it. Quite obvious ice even to the 'uninitiated' Mars neophytes.
Stop dragging your cloudy baloney in the field of your choice!
Whose says you're a weatherman anyway? An it ain't no mystery weather on Mars. Mars is not Earth. Please stay on Earth.
Some of your stuff is just OK BTW. But really, you have not given any of your time to the Canadian weather station in REAL-time. And we would think that would be your forte to comment.
yt
dx
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Fred
Posts: xxx
Reply: 98
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Posted: August 22, 2008 3:43 PM |
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Ok dx,
You are a Canadian. I did notice we got a 597K image of the Canadian flag on the bag and a 5k image of Mars.
Politics sux. I thought this was a few guys looking at Mars images. Just a note. We love our Canadian neighbors in the US.
I am beating to see surface observations this time of year. The autumnal equinox is coming.
Currently along the northern shore of Alaska. Nome, 43 degrees and calm. A link for those that want to follow along at home. It is a weatherman thang.
http://www.rap.ucar.edu/weather/surface/displaySfc.php?region=pak&endDate=20080822&endTime=-1&duration=0
Fred
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Fred
Posts: xxx
Reply: 99
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Posted: August 22, 2008 3:55 PM |
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Dx,
If Canada wants to be the weather station that’s cool. I say NASA will never let the real-time data flow.
I never wanted to beat Canada up for the discrepancies. Who says I am a weatherman? Me brother. This old idiot.
Fred
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Fred
Posts: xxx
Reply: 100
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Posted: August 22, 2008 4:08 PM |
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Dx,
If you want to talk to the weatherman, we can start where you want brother. Hats off for having the nads.
Fred
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