Most Popular
1500 questions
14
votes
1 answer
What is likely to have happened with these newly discovered antarctic volcanos below the ice?
The Guardian article Scientists discover 91 volcanoes below Antarctic ice sheet highlights a recently published University of Edinburgh School of Geosciences discovery and cataloging of over ninety new volcanos under the Antarctic ice sheet. A new…
uhoh
- 7,105
- 2
- 30
- 91
14
votes
1 answer
What causes this striped rock formation?
I was hiking a very popular trail in Akamina-Kishnena Provincial Park, and noticed these strange lines in the rocks on top of the mountain:
The lines were parallel to each other, and were on both sides of the trail covering quite a large area of…
ShemSeger
- 625
- 4
- 11
14
votes
3 answers
How will sea level rise be distributed across the globe?
Sea level rise from melting glaciers will not be uniformly distributed across the globe. However, it isn't clear to me what places will have the most and least extreme changes in sea level rise. I had previously thought that, in general, tropical…
f.thorpe
- 13,583
- 2
- 46
- 89
14
votes
1 answer
How do climatologists define the "start" of a rainy season in a unimodal monsoonal climate?
For a number of gridcells, all between the 500mm and 800mm rainfall isohyets in sub-Saharan Africa, I've got dekadal rainfall (from FEWS). They are pretty spread out over the continent and there are a lot of them, so they'll have different…
generic_user
- 451
- 2
- 5
14
votes
2 answers
How and when people first realized that Antarctica is a continent?
Recently I got startled by this question I asked myself and I can't seem to find any sources of answers.
I have hypotheses about how it could have happened:
It could have been by the fact that if you stand there you don't drift anywhere as opposed…
VaNa
- 243
- 1
- 6
14
votes
1 answer
Why is the temperature between the earth core and surface not distributed linearly?
So I read somewhere that the inner core temperature of Earth might be as high as 7000 °C.
Depending on the composition of the different layers towards the surface, the temperature should decline until the surface temperature of the air, at about…
HeLi8
- 141
- 1
- 4
14
votes
1 answer
In what sense did the Oklo reactor "trap" its own nuclear waste?
A number of popular writings on the natural fission reactor at Oklo, Gabon (e.g. here) state that some of the energetic byproducts (krypton and xenon, presumably 85Kr and 133Xe) of the reactor were "trapped" in aluminophosphate.
How, exactly, does…
senshin
- 1,885
- 11
- 27
13
votes
2 answers
How long does a magnetic pole reversal take to complete?
Geomagnetic pole reversal is a "regular" phenomenon on Earth. Although the interval pattern has been irregular at times (sometimes with millions of years of difference between change intervals), Earth has settled in the last 20 million years into a…
theforestecologist
- 479
- 3
- 14
13
votes
1 answer
Using accelerometer as a seismograph
I'm using ADXL345 accelerometer with Raspberry Pi to build a seismograph. I've successfully hooked it up and can plot the accelerometer data in three axis. Is there any way to express these data in the form of the magnitude of an earthquake, of…
yode
- 133
- 1
- 5
13
votes
3 answers
What is the white coating "patina" we often see on deposited chalcedony/agate?
Me and some of my friends were wondering what exactly is the white coating we can see on chalcedony that has been deposited by a river during quartenary (and so the original material is damaged and has a lot of cracks in it). This is an…
Petr Hykš
- 705
- 5
- 17
13
votes
1 answer
Is there any correlation between La Niña/El Niño and seismic activity?
I've read in the past that extreme precipitation levels may have an effect on seismic activity, and wondered if anyone has ever analysed the La Niña / El Niño cycles to see if there is any correlation with seismic activity in the area affected by…
db9dreamer
- 233
- 2
- 8
13
votes
2 answers
Model types: Robust diagnostic versus prognostic
I wonder whether someone knows a clear definition/description of
1) Robust diagnostic models
Forcing with data from initial state aimed at future predictions?
2) Prognostic models
Tie model results back to observations using a relaxation…
user2003479
- 403
- 2
- 9
13
votes
1 answer
Where can I obtain ocean wave data of the Southeast Asian region?
I am interested in obtaining ocean wave data (preferably from actual measurements), such as wave height, period, and direction, in the Southeast Asian region. Where can I obtain them?
adipro
- 231
- 1
- 6
13
votes
1 answer
What lithologies are deemed most suitable for the storage of nuclear waste
I have visited storage- and test facilities that are within salt and clay (Opalinuston) lithologies. What are other lithologies that are considered for the storage of nuclear waste and what are their advantages?
tobias47n9e
- 3,956
- 22
- 41
13
votes
4 answers
What is the tallest fully underwater seamount in the world?
I am wondering what is the tallest fully underwater seamount in the world ? When I say the tallest, I mean the one that is the nearest of the sea level.
EDIT : The highest that I found would be at about 50m below the water's surface do you know any…
Pop Flamingo
- 313
- 1
- 2
- 7