Questions tagged [thermodynamics]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
2
votes
0answers
41 views

How much increase in the atmospheric pressure when the global temperature is elevated by 12 C?

The deep-sea temperature was $12º$C higher $50$ My ago. I would like to know how much the atmospheric pressure at sea level had decreased and how much the water-vapour changed. One can consider no ...
1
vote
1answer
17 views

Does the shear modulus of silicate minerals vary significantly with changes in P and T?

I know that the bulk modulus, K, varies with pressure and temperature for silicate minerals and liquids, but what about the shear modulus? If so, is the change drastic for changes from standard ...
2
votes
0answers
92 views

How to plot orography for vertical profile of a certain variable along pressure levels in GRADS

I am using GRADS (1, 2, 3) to plot ERA reanalysis relative humidity profile for latitudinal average of 15N to 37N, and along the longitude from 40E to 130E. The orography is quite obvious and thus ...
7
votes
2answers
175 views

Does Earth risk losing its oceans to space due to global warming?

I read that we are facing the very real possibility of Earth's average temperature rising by more that 2 degrees Celsius by the end of the century. As I understand our planet is constantly loosing ...
4
votes
2answers
193 views

Sensible and Latent Heat. how to separate them

I need help with latent and sensible heat. P.S: I have been through all Wikipedia and other pages that say phase change and temperature change. My Question is: if there is convection, it will take ...
4
votes
2answers
455 views

Why doesn't subducted earth crust melt?

If you take a look at a typical picture tectonic plate subducting under another plate, the subducting plate is always drawn as deep (seemingly tens of km) into molten rock, but the subducted part of ...
2
votes
2answers
272 views

what is the best way to actually make the Earth lose heat?

I know that refrigerated air just moves heat around, and creates more by using fossil fuel energy in the process. If we wanted to actually reduce the amount of net heat energy in an area on the ...
2
votes
0answers
37 views

Internal energy, enthalpy, and work in the atmosphere

I'm writing a toy radiative-convective atmospheric model and need to relate the heat flux convergences (either surface sensible heat flux or the radiative flux) to changes in atmospheric layer ...
7
votes
1answer
287 views

Please help in understanding redox buffers

I'm trying to gain a firmer conceptual understanding of how redox buffers work in petrology, specifically how oxygen fugacity influences mineral crystallization. While I understand the mathematical ...
0
votes
1answer
120 views

Does being under water provide any protection from a asteroid?

Does being under or on water provide any protection from an asteroid hitting the opposite side of the Earth over being in or on land or in air? Why? Will the shock wave follow the curvature of the ...
18
votes
3answers
5k views

Do fossil fuels insulate the crust from the Earth's interior?

I was doing a project for my English class, and I came upon the article Energy conservation in the earth's crust and climate change. I can't view the full text of the article, but the abstract piqued ...
1
vote
0answers
18 views

Is there such a thing as virtual barotropic?

In meteorological terminology within dynamics, there are usually one of two unique assumptions made: Baroclinic- density is a function of both temperature and pressure : $\rho(x,y,z,t)=\frac{P(x,y,z,...
3
votes
1answer
166 views

A balloon falling from space?

How long would it take for a store bought rubber balloon filled in space with air to fall from space just outside the atmosphere and touch ground? Would it Pop? Added after comments: Ideally you ...
3
votes
1answer
156 views

Is there a table available for the maximum potential intensity of hurricanes?

The maximum potential intensity (MPI) is a computed quantity that often sets a maximum bound for maximum hurricane wind speed, though rarely, the wind speeds observed can exceed it. MPI is based off ...
6
votes
3answers
433 views

Is the ocean guaranteed to warm in a warming climate, regardless of whether it absorbs LW radiation?

More specifically, I've seen some discussion of this article: http://www.realclimate.org/index.php/archives/2006/09/why-greenhouse-gases-heat-the-ocean/ which claims that the observed ocean warming ...
2
votes
0answers
37 views

Phase conversion of snow and ice due to irradiation versus melting

A few years ago another question touched on the relative rates of sublimation versus melting in terms of snow and snow pack disappearance. What was unusual about the answer is the huge range of ...
0
votes
0answers
64 views

Is this a valid semi-diagnostic equation for Omega?

Beginning with the Primitive equations governing atmospheric motion for a dry gas, primarily the ideal gas law, and the conservation of mass and energy, neglecting diffusivity. $$P=\rho R T$$ $$\...
3
votes
2answers
127 views

Why do buoyantly rising mantle minerals melt, yet buoyantly rising atmospheric waters condense?

In the mantle, minerals contained in buoyant plumes of rock undergo phase changes from solid to liquid (decompression melting). In the atmosphere, waters contained in buoyant plumes of air undergo ...
9
votes
3answers
739 views

Sea Level Rise due to Climate Change

I've been trying to make sense of the argument surrounding sea level rise and not getting very far. Those who claim that Sea Level Rise is insignificant generally assert that we have been unable to ...
3
votes
2answers
152 views

Elevation of Atmosphere differ?

Does the atmosphere depth (or how high the air molecules from the ground) of Earth or Mars differ gradually or can there be plumes of atmosphere that reaches into space? If I were able to travel a ...
2
votes
0answers
105 views

Doesn't the sublimation rate on glaciers depend on the (specific) latent heat of sublimation of water ice?

On p. 6 of this article: Bliss, A.K., Cuffey, K.M., Kavanaugh, J.L., 2011. Sublimation and surface energy budget of Taylor Glacier, Antarctica. Journal of Glaciology 57, 684–696. There is an ...
40
votes
10answers
25k views

Why is the pond in my backyard not frozen when it is -15 °C (5 °F) outside?

I am in O'Fallon, Missouri and today it is -15 °C (5 °F) outside. I was taught water freezes at 0 °C (32 °F). I could understand if it was exactly 0 °C (32 °F) that the water might not be turning to ...
9
votes
3answers
729 views

First to Sail the Jet Stream Around the World

My questions are related to a scenario discussed on Earth Science: A huge (heavier-than-air) kite sailing in and out of the jet streams. The kite: The scenario: The assumptions: Such an airship ...
16
votes
5answers
1k views

Is global warming being moderated by latent heat of melting polar ice?

I've only had a secondary education in physics, so bear with me, but with the greenhouse effect and all, wouldn't we be much hotter already if the ice melt-rate wasn't increasing, since more (heat) ...
9
votes
1answer
20k views

Why does it rain more at night than during the day?

I'm living near a sea, and it rains mostly and heavily at night from 11 PM to 3 AM. The weather is mostly clear during daytime. Air is generally cooler at night, and cool air holds less moisture ...
6
votes
1answer
155 views

The Role of the Antarctic Circumpolar Vortex & Ocean Current in Keeping Antarctica Frozen

An offshoot from the question how does Antarctica stay frozen? Do the Anatarctic circumpolar vortex and circumpolar ocean current play a role in keeping Antarctica frozen?
10
votes
3answers
5k views

How does Antarctica stay frozen?

Antarctica receives heat from the Sun every day, so how does it stay frozen? I have some thoughts about the answer but I'm unsure of whether it is correct; I hope people here can clarify. My idea: ...
32
votes
3answers
3k views

How does anthropogenic heating affect global warming?

Anthropogenic-sourced greenhouse gases are commonly cited as the main source for human-caused climate change. However, something that I never see discussed is the actual heat produced by human ...
5
votes
2answers
297 views

Pressure of condensation of an air parcel

If a parcel of air ascends adiabatically, would condensation be reached at the lifting condensation level (LCL) or the level of free condensation (LFC)?
11
votes
2answers
576 views

How do we measure (or empirically calculate) the amount of entropy in the atmosphere and oceans?

Here's a paper on the entropy budget1, where moist entropy is defined in equation (8) as $$ s = (1-q_t)(C_{pd} \ln T - R_d \ln p_d) + q_t C_l \ln T + \frac{q_v L_v}{T} - q_v R_v \ln \mathcal{H} $$ ...