Tag Archives: outflow channels

HiRISE: Kasei Valles

Kasei Valles is a valley system was likely carved by some combination of flowing water and lava. In some areas, erosion formed cliffs along the flow path resulting in water or lava falls. The flowing liquid is gone but the … Continue reading

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HRSC: Flash floods in Mangala Valles

Catastrophic flooding triggered by ice melting from the heat of volcanic activity is thought to be responsible for the chaotic scenery depicted in this region of the Mangala Valles channel network. The images were taken by the high-resolution stereo camera … Continue reading

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THEMIS: The Martian, Part 2: Mawrth Vallis

THEMIS Image of the Day, October 13, 2015. All this week, the THEMIS Image of the Day is following on the real Mars the path taken by fictional astronaut Mark Watney, stranded on the Red Planet in the book and … Continue reading

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THEMIS: Mawrth Vallis – false color

THEMIS Image of the Day, September 29, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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THEMIS: Mangala Valles

THEMIS Image of the Day, September 25, 2015. This VIS image shows part of the complex channel called Mengala Valles. The tear-drop shaped regions in the channel are called streamlined islands and the narrow “tail” points down stream. More THEMIS … Continue reading

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Outflow channels: How did source aquifers form, why did they drain so rapidly?

Gigantic groundwater outbursts created the largest flood channels in the solar system on Mars, 3.2 billion years ago. For many years it was thought that this was caused by the release of water from a global water table, but research … Continue reading

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THEMIS: Ares Vallis – false color

THEMIS Image of the Day, September 18, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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Groundwater outflow in experiments and on Mars

Planetary Geomorphology Image of the Month, September 2, 2015: Wouter Marra (Universiteit Utrecht, Netherlands). There are many water-worn features on the planet Mars, which contribute to the reconstruction of former hydrological conditions. For example, dendritic valley networks show that there … Continue reading

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HiRISE: At the head of a Kasei Valles cataract

On Earth, cataracts represent regions where a river’s gradient increases enough to create so much turbulence, that air gets incorporated into the water body forming a bubbly current sometimes called “whitewater”. This image covers a location that may have acted … Continue reading

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HiRISE: Lowest point of Osuga Valles

Osuga Valles lies around 170 kilometers to the south of Eos Chasma, which is at the eastern end of the vast Valles Marineris canyon system. This is an outflow area, probably the result of ancient and catastrophic flooding. This image … Continue reading

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