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Questions tagged [atmospheric-science]

The study of the composition or dynamics of the gaseous layers around planets, often applied to questions on Earth's atmosphere but can be applicable to all planets & moons in the solar system.

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5
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2answers
156 views

Why does this simple equation predict the Venus surface temperature so accurately?

Assume the atmosphere of Venus behaves much the same as Earth. However, it is closer to the sun, has a thicker atmosphere, and is less massive. Further assume: The insolation should follow the ...
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0answers
16 views

When Measuring Altitude for a High Altitude Balloon does Temperature Matter?

When I look at the High Altitude Ballon results from people online that have launched DIY balloons (that have posted their data) I can see that their claimed top altitude (based on the pressure they ...
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0answers
65 views

Can any natural process explain this rate of $CO_2$ increase? [closed]

Can any natural process explain this rate of CO2 increase? How can a yes or no question be considered too broad?
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2answers
223 views
+100

Shouldn't $CO_2$ forcing depend on the surface temperature?

When I read about radiative forcing due to CO2 it says: "Radiative forcing is a measure of the influence a factor has in altering the balance of incoming and outgoing energy in the Earth-...
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6answers
110 views

How can atmospheric CO2 absorption of infrared be 100% when its atmospheric concentration is 0.04%?

An absorption spectrum from high in the atmosphere of infrared radiation emitted from the earth, shows that for the 15µm wavelength there is almost complete absorption. This is attributed to ...
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0answers
12 views

Difference between phase variation and phase deviation

I was wondering whether there are differences between the terms phase variation and phase deviation of a wave. If we have an equation of a wave which is incident on a plane given as : E(x,t) =Eo $\...
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1answer
57 views

Is there any natural phenomenon that can account for the 100 fold faster $CO_2$ rate increase?

"Based on the best historical data that we have available CO2 is probably increasing at a rate at of least 100 times faster than at any time in the last 800,000 years." Pieter Tans lead scientist of ...
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1answer
23 views

Is there more or less atmospheric pressure pressing down onto water having a larger atmosphere than of a smaller atmosphere?

Is there more or less atmospheric pressure pressing down onto water having a larger atmosphere than of a smaller atmosphere?
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0answers
90 views

Is this the fastest $CO_2$ increase in the ice-core or geological record? [closed]

Please provide a link to the science that would explain this spike. What explains why CO2 is increasing 100 times faster than in the last 800,000 years? "Based on the best historical data that we ...
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0answers
57 views

What temperature increase results from the current 410 PPM spike in $CO_2$?

I have had three semesters of college statistics as part of my BSBA degree. From what I recall from regression analysis the graph seems to show a very high coefficient of determination between CO2 and ...
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2answers
28 views

What is actually breaking the ozone layer?

My question is about the ozone layer. Is it possible that sending rockets out to space can damage the ozone layer?
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1answer
27 views

Why is the sky near the Earth limb warm-colored, even far from the sun?

I've seen many sunset pictures with explanations. The sun is red, the areas adjacent to it is orange, then yellow... because redder lights bend less, and the air is thick at that angle. Far enough ...
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0answers
29 views

Why can't we harness the energy of lightning? [duplicate]

Studying capacitors, this question struck me. If we know that there is a large potential difference between the ground and the atmosphere, why dont we use that to power our machinery? I understand ...
6
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1answer
49 views

What causes the vertical bands of light in an aurora?

I was lucky enough to witness a medium-strength aurora recently in Iceland (KP ~3). We saw the classic rippling arc of green light, which at times seemed to consist of smaller flickering vertical ...
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0answers
40 views

Design and construction of a system identifying molecular nitrogen and water

I have read papers that use LIDAR-like and LIDAR-Raman systems that detect elements. I want to measure the vapor water ($\rm H_2O$) and $\rm N_2$ of trees/agriculture using Arduino and low cost ...
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0answers
25 views

How much does science know about lightning? [closed]

In his Lectures, Feynman says the following: So the fundamental origin of lightning is really not thoroughly understood. We know it comes from the thunderstorms. Source: http://www.feynmanlectures....
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2answers
57 views

Sunrays through clouds paradox [duplicate]

So I have a layman question. If we look at the angle of the sun rays, doesn't sun seem much closer than it is [150 million kilometers] cant we take those angles that the sun makes with the earth, ...
0
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1answer
118 views

Splitting $CO_2$ as a plasma to remove it from the atmosphere

I am wondering if CO2 can be removed from the atmosphere by heating it up using the same lasers they use to make plasma when researching nuclear fusion, and then fire the plasma of oxygen and carbon ...
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2answers
43 views

Physical meaning of angular spectrum

I have been going through the paper Diffraction from an irregular screen with applications to ionospheric problems. H.G. Booker, J.A. Ratcliffe and D.H. Shinn. Philos. Trans. Royal Soc. A 242, 579 ...
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0answers
14 views

How do thunderstorms generate ionospheric potential?

In all the explanations of how global electric circuit on Earth works, I've always encountered statements like "thunderstorms generate ionospheric potential" (which is about 250 kV). E.g. here: https:...
2
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1answer
67 views

Why doesn't it rain every night as humid air cools?

When atmospheric relative humidity (RH) exceeds 100%, water must condense out of the air. We typically see this as rainfall. In North-Eastern U.S. summers it is common for daytime air to reach above ...
4
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1answer
118 views

Why can't we generate electricity from Earth's electric field?

This may be very silly, but I need to understand this to get my concepts right. Consider the fact that the electric field b/w the Earth's surface and the ionosphere is on an average $100$ V/m, then ...
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0answers
28 views

Why won't the cloud be totally separated after moving?

I want to ask that why won't the cloud be totally separated after moving? Today, i sit on the ground and look the cloud moving in the sky, and i think The wind is blowing the cloud ,so the cloud can ...
3
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0answers
62 views

Lightning through Helium gas

Assuming that some distant planet had an atmosphere of helium and(due to extremely cold temperatures) a "water cycle" of neon, what would happen if the theoretical neon clouds acted in a similar way ...
3
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2answers
103 views

Why don't (can't) astronomers take advantage of interferometry to the extreme?

Reading and watching from various sources (e.g: APOD, ESO videos, or Wiki), whenever interferometry is mentioned, it is also usually explained like this: An astronomical interferometer consists of ...
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3answers
43 views

On the Coriolis effect and weather

I learned in classical mechanics that the Coriolis Effect curves everything with speed to the right in the northern hemisphere and to the left in the southern hemisphere, my question is then why ...
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1answer
26 views

Dielectric constant change in the atmosphere?

I'm curious about the refractive index changing in the atmosphere. As I understand it (and I may very well be wrong/naive) when a ray of light enters from one medium into another, the electric field ...
3
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1answer
39 views

Is there a Coandă effect outside the atmosphere?

For example, when air is blown through a spoon in the atmosphere, the air flow bends toward the spoon. People say it's the Coandă effect. So, outside the atmosphere, when we let air blow through the ...
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1answer
44 views

Is the passage of lightning on a transmission line? [closed]

If so, then shouldn't lightning be reflected back into the sky everytime it hits the earth, due to an impedance change?
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4answers
78 views

How does sound change high in atmosphere? [duplicate]

There is no sound in space because there are not enough particles to transmit the pressure wave. But what about really high in the atmosphere where there is just a little air? Would sound move faster, ...
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1answer
66 views

Is it possible to destroy a typhoon by bombs?

When a typhoon is still on the ocean, if a big bomb or several bombs are thrown to it, maybe at the eye, or at the part where the wind circles fastest, can the bomb destroy the typhoon?
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0answers
1k views

What is the most likely cause for this strange lighting at sunset?

Yesterday's sunset was a little bit weird in several countries (Saudi Arabia, Egypt, Kuwait). Here's a video & picture, in case it wasn't clear enough it felt as if everything was being lit by a ...
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1answer
59 views

Direct Air Capture (DAC) of $CO_2$: Would a DAC mechanism run out of local $CO_2$ to convert?

Per Carbon Engineering's Website: Direct Air Capture (DAC). They claim to be able to remove 1 million tons of CO$_2$ per year with a single plant. My question is whether they needed to account for ...
0
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1answer
88 views

Does the atmosphere rotate slightly slower than the earth surface?

I often hear the vague explanation that the Coriolis Effect is why air rotates into pressure systems. That doesn't explain it for me though. Is pressure gradient directly toward the center of the low?...
0
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1answer
67 views

What is the speed of air molecule?

Given the minimal temperature measured in the Earth's atmosphere is not $0\space K$, air molecules are moving. I see no reason for air molecule to move all at the same speed. The question is ...
4
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2answers
129 views

How does the Earth's magnetic field protect it from the solar wind?

Several sources (see linked questions at the end) say that earth's magnetic field shields us from the solar wind. The general consensus is that without earth's magnetic field, the atmosphere would be ...
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0answers
23 views

Pressure variance with height of the atmosphere-conflict of answers

When we use the standard equations pertaining to the International Standard Atmosphere to calculate the pressure at 25km above sea level, the answer seems way off from the values that we get over the ...
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0answers
51 views

Escape Velocity and its effect on the atmosphere

I’ve been doing some world building and wound up with a bit of a physics puzzle that’s stumped me. So rather than a long winded explanation I’ll simply state the primary parameters. Under otherwise “...
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1answer
63 views

Why sky is blue? [closed]

The major factor of different scattering is the ratio of wavelength to the size of particles which are working as microscopic scattering mirrors. In a sparse particle medium like air, the longer the ...
2
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1answer
61 views

Decrease in temperature due to radiation

Can radiation cause the temperature to decrease? Because, in my Physics textbook, it is written that: ln winter nights, the atmospheric temperature goes down. The surfaces of windowpanes, flowers,...
9
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3answers
141 views

Could the end cap of the Pascal B (1) survive its trip through the atmosphere?

In 1957, the US had a nuclear test where a shaft was dug 152 meters into the ground. A 100 mm thick, 900 kg steel plug was installed and welded at the top of the shaft. Under it was 2 feet of ...
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0answers
11 views

In Feynman lecture vol1,chapter12 friction between two wet glasses, is there any atmospheric pressure related during the process?

In Feynman lecture vol1,chapter12 friction between two wet glasses, is there any atmospheric pressure related during the process? Does the water between two glasses make use of atmosphere pressure? Or ...
0
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1answer
67 views

Wind speed limit

According to Wikipedia, the highest wind speed not related to tornadoes ever recorded was 408 km/h. But I am wondering, what is the maximum theoretical wind speed possible here on Earth? It clearly ...
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1answer
58 views

How thick would the atmosphere have to be to block all the sunlight?

this is a question I haven't been able to find an answer to anywhere. How thick would our atmosphere have to be for the surface of the planet to be completely dark? Is that even possible? Thank you!
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4answers
7k views

If the pressure inside and outside a balloon balance, then why does air leave when it pops?

Sorry for the primitive question but when we inflate a rubber balloon and tie the end, its volume increases until its inner pressure equals atmospheric pressure. But after that equality is obtained ...
2
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1answer
41 views

How would music sound in different atmospheres?

How different would a musical piece sound in different atmospheres? I assume that sound travels differently in other planets depending on what their atmosphere is made of, affecting the frequencies. ...
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1answer
43 views

What units are represented by pr - micrometer?

In studying column abundances, I often encounter the units $pr-\mu m$. What does this stand for? Part per micrometer? how can this be an abundance unit? Incredibility I cannot figure out what it ...
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1answer
35 views

Formation of Red and blue bands in the sky

Today at the time of sunset I saw this The sky is divided into two parts one In red and one in blue which are very distinctive Can anyone tell how? The upper part of the image points towards the ...
2
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1answer
37 views

Can a syringe be used as a hanging scale if needed?

FYI: This is not a homework q; I am just curious... You can assume that... the syringe tip cap creates a "perfect" seal, i.e., keeps air from flowing in/out! the syringe is completely depressed ...
2
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1answer
50 views

How is sound affected by gravity?

How would sound be different on a planet with a stronger gravitational field? My reasoning leads to sounds of the same wavelength having higher frequencies - is this correct?