Questions tagged [atmosphere]

The gaseous envelope surrounding the *Earth*, and retained by the Earth's gravitational field. If your question is about the atmosphere on another celestial body or is more astronomy related, please ask on Astronomy.SE.

82 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
137 views

Why is the night very bright in the Himalayas?

Some years ago I had the chance to climb the Himalayas. Not the Everest of course, but the Annapurna Base Camp which is about 4km above sea level. During the night of the stay I went out to do some ...
2
votes
0answers
71 views

Why does the absence of diabatic heating rate and frictional terms make the zonal and vertical velocity identically zero?

I was reading an article on fluid dynamics of tropical cyclones, where I came across a condition which states that, For adiabatic friction less flow, equations (1) to (5) have a solution, v(r, z),...
2
votes
0answers
100 views

Why do nearby thunderstorms move in different directions?

The image below from the Australian Bureau of Meteorology shows several thunderstorms in southeast Queensland today and the directions they are expected to move. I'm surprised how different these ...
2
votes
0answers
1k views

Is this an accurate simulation of a further south Australia with a filled lake Eyre?

I created this climate map based on a simplified Koppen Climate Classification map (shown below). In this scenario Australia is moved 10 degrees of latitude further south and the Lake Eyre basin is ...
2
votes
0answers
95 views

How to calculate column averaged kinetic energy?

I have u-wind, v-wind and w-wind at 11 pressure levels (starting from 1000 to 100). I would like to calculate column averaged kinetic energy. I have the formula to do this as: $KE=\frac 1{g(Ps-Ptop)} ...
2
votes
0answers
49 views

What would be characteristic time of the escape of an 1atm air (or oxygene atmosphere) from the Moon?

(related question) I am thinking on the Moon if it would have an oxygen atmosphere. What would be the characteristic time of its escape? Although the Moon has a much lower escape velocity as the ...
2
votes
0answers
187 views

Sky color of a proterozoic earth with a Canfield ocean

What would the sky color be with a Proterozoic earth during the "Boring Billion" (1.8 By-0.8 By) with a Canfield (Euxinic) ocean and a high atmospheric concentration of colorless hydrogen sulfide and ...
2
votes
0answers
108 views

What is the significance of the Vertical integral of northward kinetic energy flux?

This is a field in the ERA-Interim dataset. What is its significance, and what is it important for?
1
vote
0answers
50 views

How long to breathe (the equivalent) of all of the atmosphere?

I have done some rough calculations of how long it might take humanity: approx 80,000 years (that's taking Earth's population as 7.5 billion, 11,000 litres a day of breathing per person, the weight of ...
1
vote
0answers
49 views

CO2 behaviour in atmosphere

I have a doubts about how $\small\mathsf{CO_2}$ absorbs an re-emits infra red (IR) radiation. Let's imagine an only-$\small\mathsf{CO_2}$ atmosphere. In this case, a large amount of 15 $\small\mathsf{...
1
vote
0answers
35 views

How does this calculate the water transport between crops in the webside?

click->http://gpe.letsgrow.com/ next click->moisture transport In the results of Moist transport through the crop, what is the relationship between crop height and diffusion, air movement, and total ...
1
vote
0answers
44 views

How to transform level 2 satellite retrievals to level 3 gridded data

Usually, I use level-3 gridded satellite data to analyze the spatial and temporal patterns of atmospheric compositions. However, there were some data sources which only afford level 2 product. For ...
1
vote
0answers
20 views

Model impact of atmopsheric circulation changes on precipitation dD of a region

I'm looking to model the impact of broad scale atmospheric circulation changes on the hydrogen isotope ratio of precipitation for a given region. As an example, what impact does a high pressure system ...
1
vote
0answers
107 views

How can I convert a CERA-20C total precipitation dataset of "monthly means of daily means' (edmo) to mm/month?

I downloaded an edmo dataset of 1 ensemble of the cera-20c model. I want to convert these data, which are in [m], to mm/month. Further specifications: 0.125/0.125 grid, -29/30/-30/31 area. Example of ...
1
vote
0answers
638 views

What are the environmental effects of leaking hydrogen from large-scale energy storage mechanisms?

I recently have calculated the total cost of an energy system that is based on wind power as the primary power source and hydrogen as the energy storage mechanism. The total system costs are ...
1
vote
0answers
44 views

Clarification: Effective temperature, emission temperature, and effective emission temperature

This terminology is quite confusing to me. Are effective temperature, emission temperature, and effective emission temperature the same thing? Where does this occur, at the surface, or at some ...
1
vote
0answers
66 views

Can cloud seeding make a much hotter summer, at a middle latitude, at the area that receives less water than expected?

My country, Spain (40ºN), receives clouds from the Atlantic Ocean during the summer. Our most visited beaches are on the Eastern coast, which sits on the Mediterranean Sea, there is typically more dry ...
1
vote
0answers
36 views

How to analyze this data showing atomospheric CO2, CH4 and tempertures obtain from an ice sample?

Here is the chart: My questions are: Is the atmosphere in equilibrium over this record? how would I determine what the maximum and minimum values for each record is (approximation). Is there a ...
1
vote
0answers
91 views

What would happen to the Subtropical Ridge/Horse latitudes and Polar front if the Earth was rotating 5% faster?

Would they move towards the Equator/Poles? Stay in the same place? What about if the Earth was rotating 10% slower? Is there a rotation speed for Earth which will lead to 4 wind belts instead of 3 ?
1
vote
0answers
113 views

Pileus / velum & altocumulus / altostratus - classification problems

I have a lot of free time and often observe and take photos of the sky. Along with that, I always try to figure out what exactly I saw. I think that I have the basic understanding of clouds and cloud ...
1
vote
0answers
35 views

Is there any method to analysis the variation of chemical species removing the meteorology condition

Here is my question. The concentration of atmospheric species is decided by three major components: The source related to natural or anthropology activities. The chemical pathway of the formation ...
1
vote
0answers
181 views

Buoyancy frequency

The buoyancy frequency, $N$ is defined as $N^2=\frac{gd\theta}{\theta dz}$, where $\theta$ is the potential temperature (I see it as a measure of the deviation from the adiabatic nature), $z$ is the ...
1
vote
0answers
105 views

Dry deposition of the total sulfate deposition in forested region

Sulfate is one important inorganic aerosol in the atmosphere. It's subject to removal by two main mechanisms. Wet deposition which include rain/wash-out and cloud deposition. Dry deposition ...
1
vote
1answer
140 views

Why is the average 1 Bar temperature on planets with a thick atmosphere proportional to the distance of the sun?

The temperature of a planetary body in space varies with the fourth-root of the power incident upon it, this is derived from the Stefan-Boltzmann Law. This is understandable when applied to a black ...
1
vote
1answer
53 views

Can a Humidity Differential move PM2.5 Pollution?

Observations There is a higher level of PM2.5 pollution outside of the house. Readings are in the 80-150 range due to wildfires. (PM2.5 levels determined by sensors in PurpleAir.com's sensor network) ...
0
votes
0answers
30 views

When it comes the average lifetime of chemicals in the atmosphere, is the mean lifetime ~1.4427 times the half-life? As with radioactivity?

There are so many websites giving numbers for 'average' lifetimes of global-warming or ozone-depleting chemicals in the atmosphere, yet they are rarely explicit in their definition(s)... For instance, ...
0
votes
0answers
33 views

Question regarding an ice age caused by impact event(s)

If a hypothetical series of debris were to collide into a planet like Earth, I'm aware that dust could very well be sent into orbit, causing global cooling. If this were to happen, exactly how would ...
0
votes
1answer
76 views

How to measure voltage differential across different altitudes

Imagine two points, one directly above the other ( Point A - 10,000 feet (PA) Point B - 20,000 feet (PB) Imagine there's voltage potential between those two points Q1: How could you measure the ...
0
votes
0answers
36 views

Gamma vs Pearson distribution for Standardized Precipitation Index

What is the difference between Pearson and Gamma distribution and the impact of using one of these in the Standardized Precipitation Index (SPI)? Thank you!
0
votes
0answers
89 views

Earth-like conditions on Titan: is it feasible that Titan once had seas and lakes of liquid water?

Given that: 1) Four billion years ago Saturn was hotter and radiated strongly in the infra-red. . . . . . . . . . 2) Like Earth's moon, Titan was then closer to its planet. . . . . . . . . . 3) Like ...
0
votes
0answers
28 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:...
0
votes
0answers
65 views

Theorist speculate about dozens of loud atmospheric booms across globe

Theorist speculate on the dozens of loud atmospheric booms across globe. Has any recognized institutions offered a plausible explanation as of now?

1
2