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2007-01-29 00:51:11 · 6 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

6 answers

I would expect with the minimal atmosphere that they would be very lame speedwise. However, dust storms on Mars can cover the whole planet.

2007-01-29 00:55:58 · answer #1 · answered by gebobs 6 · 0 0

With so little moisture in the soil, sand and dust are always blowing around on Mars," said Ingersoll. "Every few years, a global dust storm blots out the Sun for a few weeks until the dust settles out."

The puzzling thing about these great storms is that they don't occur every year.

"Without an ocean, there is nothing on Mars that would make one year much different from any other," Ingersoll said. "There is no El Nino cycle, for instance. Yet some years have global dust storms and others don't."

ANIMATIONS

The four images in this animation were each taken two hours apart on June 30, 1999. They show a dust storm (brown) gathering near the Martian north pole (the light-colored area above center).
IMAGES: NASA/MGS/Malin Space Science System
Animation by SPACE.com

This Martian dust devil, captured by the Mars Pathfinder in 1997, is 49 feet wide (15 m) and more than 800 feet tall (245 m). It was spotted in an area called South Twin Peaks, about 1 kilometer west of where Pathfinder. The storm has a well-defined column with a tenuous top. The three frames of the animation were taken about 20 seconds apart. IMAGE: © Stephen Metzger

Reference

All About Mars

And when it comes to tornadoes, there's no place like Mars.

The typical terrestrial tornado typically rises no more than 2,000 feet (610 meters) into the atmosphere (though the storm that spawns it is usually taller). But a Martian vortex, all by itself, can tower up to 5 miles (8 kilometers).

2007-01-29 00:58:43 · answer #2 · answered by ? 2 · 0 1

Because of the extremely thin air on Mars the storms are mild and not wild compared to Earth storms. The wind speeds can be fast but because the air is about 100 times thinner than on Earth, that wind exerts less force than it would on Earth. The only reason it can even pick up dust is that Martian dust is very dry and fine compared to most Earth dust. And the gravity on Mars is only 1/3 on Earth's.

2007-01-29 01:00:02 · answer #3 · answered by campbelp2002 7 · 2 0

On Mars, as on Earth, dust storms can contribute to environmental change. Sometimes, though rarely, dust storms on Mars can be fierce enough to blanket the whole planet in a dusty haze for weeks, as the Mariner 9 spacecraft found out. Local and regional dust storms are much more common, and in polar regions can affect the rate at which seasonal frost weather patterns evolve.

2007-01-29 00:57:25 · answer #4 · answered by k0sty2u 2 · 0 1

I would guess that the dust storms on mars could be very wild.
The denser atmosphere on earth would prevent such high speed wind motion.

2007-01-29 02:49:46 · answer #5 · answered by Billy Butthead 7 · 0 1

yeah because there is no atmosphere on mars.the duststorms there always occur.

2007-01-29 00:58:06 · answer #6 · answered by angel cutie 1 · 0 3

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