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What would happen if we removed Earth's moon?
This question is an object of fascination of mine. There are a few different angles to take to it. My favorite is blasting the moon out of existence while its moving away from Earth.
What would happen if Earth's moon was removed?
ethug
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CDL File Questions
I'm confused by what exactly a CDL file is and what its purpose is. Unidata specifies the syntax of such a CDL file in its netCDF documentation.
Questions:
Are CDL files designed to be opened by a simple text editor like Notepad or gedit? Or should…
user4624937
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What would the equilibrium temperature be at the poles in a world without seasonality?
Inspired by: How does Antarctica stay frozen?
If the Earth was in a fixed solstice state - northern winter and southern summer (e.g. the axis obliquity rotated with the Earth's orbit), what would the equilibrium temperature be at each pole? Assume…
naught101
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Did a crater cause the break up of Gondwanaland & separate Australia from Antarctica
In 2006 it was reported that the Largest Ever Killer Crater was found under ice in Antarctica. Gravity measurements taken by NASA's GRACE satellites indicate the crater is 250 million years old.
The size and location of the crater, apparently 480 km…
Fred
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8
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Sea Surface Height Data
Is there a good dataset on global ocean sea surface height? I found this, http://climate.nasa.gov/interactives/sea_level_viewer, but there is no data I can download and it's hard to see the latitude and longitude coordinates.
user4624937
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8
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2 answers
How do we convert the seismic trace wavelet to zero phase which is in mixed phase?
As we know the mixed phase data would not give the "real TWTT" through the medium. We need a zero-phase wavelet that can directly correspond to the time taken to travel in a given media. So my question is how do we convert the seismic trace wavelet…
Kunal Rathod
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Magma resultant from group 1 and group 2 elements?
I was recently speaking with a geology professor over lunch at a university who has a theory that I've never heard before. His postulation was quite compelling and I was hoping to do a little digging to see if anyone else has heard of such a theory…
ylluminate
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8
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What is a Geophysical Model Function (GMF)?
I have heard the term mentioned many times in seminars, and in papers on remote sensing. What does it mean? References would be helpful if available.
user4624937
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8
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What caused a measurable patch of Mt. St. Helens' ash to be deposited across Oklahoma?
Looking at the ashfall distribution map from the 1980 eruption of Mt. St. Helens (below), there is a measured 'patch' of ash depth significant enough to be measured occurring in Oklahoma.
What caused a measurable patch of Mt. St. Helens' ash to be…
user889
8
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2 answers
Underwater rock conduit
After looking at this question - Source of water for the Great Artesian Basin in Australia one would like to know whether there are any underwater rock conduits that transport fresh water across seas in the world. I have not come across any in my…
user1066
8
votes
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What causes the entrainment of atmospheric gases towards a volcanic ash/tephra plume?
I understand that volcanic ash plumes can only rise to great heights (e.g. 50km) with the help of some other processes, as the velocity of the material ejected isn't great enough to send it high into the atmosphere.
I don't understand how exactly…
nolisgol
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What caused the high temperatures that resulted in the Cretaceous aged komatiite lavas of Gorgona Island, Colombia?
According to the San Diego State University (SDSU) webpage Unusual Lava Types, komatiite is
ultramafic volcanic rocks, having very low silica contents (~40-45%) and very high $\ce{MgO}$ contents (~18%). These lavas are exceptional not only for…
user889
8
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1 answer
Relationship between atmospheric density and atmospheric pressure?
I am slightly confused as to how the following statement is true:
As the density of the Earth’s atmosphere decreases, the average atmospheric surface pressure remains the same
As dictated by the equation $P = \rho R_mT$, where P is pressure ρ is…
Shan
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Climatology of the Indian Summer Monsoon - A modern consensus
Edmund Halley viewed the monsoon as a glorified sea breeze circulation fueled by different heat capacities of land and ocean.
The resulting meridional temperature gradient between warmer air of the land and cooler air of the ocean fueled by…
user1066
8
votes
1 answer
Do different lavas have different volcanic volatiles associated with them?
This question was inspired by the question Predicting volcanic eruptions by experimentally proven volatile outgassing observations
Depending on the type of volcano, three types of lava are released by current volcanoes on Earth: basalt, andesite and…
Fred
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