Questions tagged [geothermal-heat]
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How to determine underground temperatures?
I wonder how deep does the ground stop becoming colder and begins to get warmer? Moreover, are there any maps or methods to determine this for regions with different elevations and temperatures that ...
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What determines rock temperature inside mountains?
Wikipedia article says about the Gotthard Base Tunnel:
"It is the deepest railway tunnel in the world, with a maximum depth of 2,450 m (8,040 ft), comparable to that of the deepest mines on Earth....
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Should geothermal electricity be considered green?
I always considered geothermal energy a vast, emission-free green energy source. That is, if you happen to live in the right place. That also seems to be the sentiment online.
I live in Italy, in the &...
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Map of earth subsurface temperature
I see similar flavours of this question have been asked a few times, but I still don't see a satisfying answer. I am looking for data (maps) of the earth subsurface temperature at a depth sufficient ...
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Why is geothermal heat insignificant to surface temperature?
I believe the temperature gradient underground is as high as 30°C per kilometer of depth. Thus, it is very warm only 1 kilometer below the Earth's surface. Yet, it is commonly stated that geothermal ...
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At what depth does the ground stop getting cooler/hotter(summer/winter) and it starts to warm up?Where is the MAT depth or geothermal crossover?
Lookin into geothermal cooling, and want to learn more about how temperature behaves at different depths, not too deep like 100 meters or so, ignoring unusual stuff like geysers and things.
I want to ...
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What is the average temperature of the whole planet Earth, not just the surface?
What is the average temperature of the Earth when you take into account all of the layers, not just the surface? Everything I've found so far concern only the surface or each layer individually. But ...
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Simple Mathematical Equation for the Geotherm
Hi I need a simple equation (polynomial third straight) for a PerpleX simulation to represent the mantle geotherm. The geotherms I have found on the internet so far (unfortunately I don't have the ...
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Is there superionic ice in the earth? and how did it get there?
I recently researched about Superionic Ice which basically is Water under so much pressure and heat that it turns into a black hot ice. I read this article about it too. I found out Superionic ice ...
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Formation of steam underground
In the process of drilling holes in the ground, if water was introduced, could it reach equilibrium vapor pressure, flash to steam and expel drill bit, drilling rod, and other debris up and out of the ...
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Geothermal instead of fossil and nuclear?
Why aren't we taking advantage of geothermal heating to produce electricity around the world, instead of burning fossil fuels and using nuclear?
Wouldn't it be a lot cheaper than building new power ...
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Is there a more accurate method for estimating ground or soil temperatures
Context
We have geothermal, engineering and construction clients who often need accurate estimates of ground temperatures for project sites before they have physical access to the sites (for ...
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Why is the deep sea cold?
Except near thermal vents, the deep ocean is generally considered to be quite cool. For instance, water temps in the Mariana Trench (~10 km deep) are 1-4 °C.
However, the geothermal gradient runs ...
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How much of Earth's internal heat comes from primordial heating and how has it changed since Earth's formation?
I'm trying to get a general idea of how Earth and other planets behave over time for a project. While I can find plenty of good data about how much radiative heating there was, I can't find anything ...
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What is the most current thinking on the amount of heat transferred into the oceans from underwater thermal vents and volcanoes?
My understanding is that with the relatively recent discovery of many more volcanoes on the Mid-Atlantic Ocean Ridge (and perhaps other ocean ridges) and more deep trenches with thermal vents, that ...
