The power of HiRISE |
The power of HiRISE |
Oct 9 2008, 08:04 PM
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Busy preparing a new Outreach talk here, and have been trying to find some images to illustrate the "power" of HiRISE for a non-technical audience. Playing about with - sorry, carefully looking at the images on - the addictive Mars Global Data site I found a cute landslide on Xanthe Terra that does the trick nicely. Using the IAS Viewer you can zoom in on the boulders carried down the slope by the landslide and even see cracks and splits in them... unbelievable...!
Anyone else got any fave examples? -------------------- |
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Nov 28 2008, 09:08 PM
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Member Group: Members Posts: 568 Joined: 20-April 05 From: Silesia Member No.: 299 |
I found another unusual boulder track. You can see clearly how increased speed of the boulder on the slope. Jumps were increasingly longer, even a few dozen meters.
Hills Northeast of Mojave Crater (PSP_008430_1895) - general view Hills Northeast of Mojave Crater (PSP_008430_1895) - "Rolling Stone" Boulder in the final position I was very skeptical before Mars Reconnaissance Orbiter mission. Another mission to Mars similar to the Mars Global Surveyor mission, what's interesting in this. I was wrong, MRO is the ultimate achievement in the field of imaging of Mars from orbit. -------------------- Free software for planetary science (including Cassini Image Viewer).
http://members.tripod.com/petermasek/marinerall.html |
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Nov 28 2008, 11:18 PM
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Member Group: Members Posts: 713 Joined: 30-March 05 Member No.: 223 |
MRO is the ultimate achievement in the field of imaging of Mars from orbit. Yes, Absolutely. MRO almost "feels" more like viewing the martian landscape out of a helicopter window than from orbit ... When I was younger I have always been dreaming about future Mars missions involving balloons or airplanes and wondered how phantastic a feeling it would be to view all the images and vistas those aircrafts would take from above ... finally bridging the gap in scale between the ground level images of the landers (Viking) and the very low resolution views of the orbiters ... Now we don't have martian airplanes yet but we have MRO ... and it's even better for it's global scope of operation |
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Nov 29 2008, 01:37 PM
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
Yes, Absolutely. MRO almost "feels" more like viewing the martian landscape out of a helicopter window than from orbit ... Interesting thought. Is there a way to calculate at what altitude a human (eye) has the same resolution as HiRise? Is it comparable to a helicopter flight or looking down through the clouds from an airliner? |
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Nov 29 2008, 03:21 PM
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
Interesting thought. Is there a way to calculate at what altitude a human (eye) has the same resolution as HiRise? Is it comparable to a helicopter flight or looking down through the clouds from an airliner? Assuming that the human eye visual acuity is about 0.59 arc min and HiRISE at 0.25m/pixel you get an altitude of about 1456m or about 4800' (if I did my math correctly). Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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