Most Popular
1500 questions
8
votes
4 answers
Do "water-worlds" not have plate tectonics?
Water-worlds are becoming increasingly important in the exoplanet/astrobiology community. If plate tectonics create land masses, then can we say that a water-world (a planet with a global ocean and no land) does not have plate tectonics?
Many…
Syd
- 293
- 1
- 5
8
votes
2 answers
How to perform regridding (1.0d to 0.5d) using bilinear interpolation for an irregular area?
I need to regrid temperature dataset from 1 degree to 0.5 degree. In case we have data available for all grids falling in a square, as shown below, we can simply regrid it using bilinear/bicubic interpolation method in MATLAB.
But, the data grids…
dsbisht
- 341
- 3
- 8
8
votes
2 answers
How can there be a hot summer with rain and no thunderstorms and lightning?
This summer in the south of France we have had two hot months with 29 days over 30'C, while the average maximum is 26'C in July.
Normally there are violent storms with lightening up to 20 times a minute, and this year in two months we have had…
bandybabboon
- 1,349
- 6
- 12
8
votes
0 answers
What geological structure(s) is responsible for the recent Queensland earthquakes?
Recently, south-east Queensland has been rattled by 2 moderate earthquakes - a 5.3 a couple of days ago (News report) and a 5.7 tremor just a few hours ago as of writing this post (News Report). These are significant as they are the strongest…
user2872
8
votes
1 answer
Is there a way to tell whether land is cleared from forest, or naturally bare?
In Scotland, the Caledonian Forest has been cut down by humans. According to an unsourced Wikipedia article the tree line in Scotland is at 500 metre (it does not indicate the tree line elevation difference between southeast and northwest Scotland,…
gerrit
- 11,704
- 2
- 37
- 87
8
votes
1 answer
When does the Northern Hemisphere reach minimum land area covered by solid H2O?
What's the average day of the year when the fewest square miles of the hemisphere's land is covered by snow or ice or transitional forms like slush? Not counting anything below ground like permafrost or uh, temporaryfrost.
Maybe the land minimum is…
user3224
- 81
- 2
8
votes
1 answer
How to distinguish an explosion crater from an impact crater?
(How) Is it possible to tell the difference between a man made explosive crater and an impact crater?
Lucian09474
- 1,942
- 2
- 17
- 25
8
votes
2 answers
What is the best way to accurately measure wavelength between crests on a pier?
What is the best way to accurately measure wavelength between crests from a pier?
Joe Shmoe
- 119
- 2
8
votes
6 answers
Will the Mini Ice Age solve our Global Warming Heat problem
There is news on the web saying that there will be Mini Ice Age in couple of decades.
The question is: Will this Mini Ice Age take away all the excessive heat and prevent Global Warming?
uefi.boot
- 89
- 4
8
votes
1 answer
Identifying serpentinite reworked during high-T metamorphism
What kind of mineralogy results when a serpentinite is reworked during high-T or UHT metamorphism? I am envisaging a possible scenario where an obducted ophiolite terrane is buried and metamorphised within thickened orogen.
Since seprentinite is…
geordie
- 263
- 1
- 8
8
votes
1 answer
How does CO2 contribute to global warming?
CO2 is a common agent in fire extinguishers, which suppresses fire. How does this same chemical contribute to global warming when it also puts out fires?
Alex Mendoza
- 91
- 3
8
votes
2 answers
Is pure "heat" harmful to the environment?
Is heat, dissipated from a hot conductor to the surrounding air harmful to the environment? If it were large-scale would it have any negative eco-effect?
Is a source of heat, considered harmful to the environment? Or is heat easily exited from our…
user3125
- 81
- 2
8
votes
3 answers
Algorithmically Determining the Rainy Season
I have historical precipitation data for hundreds of cities around the world. I would like to algorithmically determine when the rainy season (if exists) is for each location. Are there any algorithms out there that can determine this based on the…
user2694306
- 181
- 1
8
votes
1 answer
How do I extract seismic amplitude on an interpreted horizon?
It seems that seismic amplitude extracted on an interpreted horizon is good for showing channels. E.g.:http://seismicatlas.org/entity?id=98a83c60-ea81-47cc-9304-6041f6ec5277.
It seems that often the RMS amplitude is used instead.
When do one use…
Andy
- 275
- 2
- 4
8
votes
4 answers
Why has CO2 decreased in the history of the Earth?
I noticed that the $\ce{CO2}$ is actually decreasing in the eon time.
My guess is lush vegetation or forests began to grow which absorbed the $\ce{CO2}$ by photosynthesis? Would anyone give me any clue?
Betty
- 271
- 2
- 3
- 3