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Geomorphology of Mountains With Wind only Erosion

I am curious what mountains would look like if erosion occurred almost entirely by wind. Specifically, I am curious of how granite mountains would look on a "snowball" terrestrial-sized xenoplanet. On a "snowball" world, the planet is earth sized…
TechZen
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How is the Rossby Radius used to determine that synoptic weather systems are 1000-2000km across?

In one of his presentations, Sandy MacDonald (of NOAA and ESRL) talks about the Rossby Radius of Deformation in connection with the size of synoptic weather systems: he describes how it sets the diameter of "large-scale" systems to be 1000-2000 km…
410 gone
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Average Aragonite:Calcite ratio in biogenic CaCO3 in the oceans

I wonder what the average ratio between aragonite and calcite is during the precipitation of biogenic calcium carbonate in seawater. I know some species are aragonite-favouring and some perfer using calcite. I also know that aragonite is about 50%…
user2003479
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What determines the spectrum of high and low frequency waves emitted by an earthquake?

Does the shape of the fault that the earthquake originated from determine its ratio of high frequency to low frequency waves? What about shallow-fault vs deep subduction zone earthquakes?
InquilineKea
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How will climate change affect the extent of the Sahara Desert?

Will it increase the size of it? (perhaps by increasing the extent of the Hadley Cells)?
InquilineKea
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Probability distribution of fault throw displacement and height limiting mechanisms

First, what is the probability distribution of fault throw displacement. Uniform distribution seems unlikely, since then small changes would add up to huge huge elevation differences that require a large amount of by erosion to reduce. But the same…
user877329
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What is a source of worldwide temperature data that also includes extreme weather?

I often need to calculate heat balances for large biogas plants, an important factor is outside temperature. I normally use the weather data from Klimadiagramme.de where I can find the mean monthly temperature and precipitation. This allows me to…
mart
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Why does El Niño enhance the jet stream?

As quoted over here. This is especially interesting to me because El Niño tends to warm up the climate, and warmer climates are generally associated with weaker jet streams. El Niño has other effects further into North America. It tends to enhance…
InquilineKea
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Why are mornings cooler than nights?

In the morning, Google shows the temperature from four or five hours ago (around 2:00 a.m.). But then I update the report, and I get the temperature slightly lower than before. Why is the temperature at 2:00 a.m. higher than the temperature at 7:00…
user20559
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Comparing the Earth with a basketball?

(Please excuse my English) The picture above is an image of the Earth without water. We know that the picture above is a very exaggerated one. If the Earth were to shrink to the size of the picture above, it would look like a very smooth and round…
pdh0710
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How is global greenhouse gas emission calculated?

I am sure there are different methodologies to arrive at such a number. Can someone in layman terms describe some of the most widely used and trusted methods and what data are used? Sorry I am outside the field of climate modeling so the simpler the…
RicardoR
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How are hillsides farmed?

I would assume hilly land is more labor-intensive to farm than flat land, and more exhausting to humans and animals if traditional farming techniques are used. How do farmers plant and plow on uneven terrain? And do the furrows on a hill run…
kenkujukebox
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Would the shaking of an earthquake be visible to somebody in a low-flying aircraft?

If you are in an airplane well above ground level, but low enough to see the faces of people relatively easily, and an earthquake happens, will you see the ground shake?
carl sagan
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What kind of rock is this being eaten by a rock-eating worm?

The New York Times article This Creature Eats Stone. Sand Comes Out the Other End. describes the shipworm Lithoredo abatanica, an organism that appears to "eat solid rock". It links to the item in Science This rock-eating ‘worm’ could change the…
uhoh
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What was the highest temperature ever recorded on the surface of Earth?

The article entitled "54 Celsius degrees in Iran, the highest temperature ever recorded?" says 56,6 Celsius may be the highest temperature ever recorded, in Death Valley, California, and it also mentions that Iran's heat index peaked at 61,2 Celsius…
Pablo
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