Questions tagged [meteorology]

The study of how the earth's atmosphere works, including weather forecasting. Use this tag for questions about the earth's weather. When asking questions specifically about the atmosphere, also include the [atmosphere] tag.

172 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
0answers
366 views

What is a weather system?

I heard on Star Talk Radio that Jupiter has weather systems larger than Earth so I was just curious to know what the definition of a weather system is exactly.
1
vote
0answers
370 views

Why is lightning going from the Earth to the clouds while the electrons are going from the clouds to the Earth?

The lightning is often a discharge in advance. The (negative) charge slide occasionally a little further on in the conductive channel, wherein said channel is highlighted each time something. The ...
1
vote
1answer
54 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
20 views

If there was a heat-wave on the North Hemisphere, will there be heat-wave on the South Hemisphere?

The recent heat-wave seemed to have appeared at same time in North America and Europe. (I don't know if this was representative for other parts of the north hemisphere.) It might then have been cooler ...
0
votes
0answers
12 views

Why does the current warm spell in the Pacific Northwest include high, thin clouds?

I've noticed this during summers (lived here since birth). Sometimes there will be cloudless blue skies, other times when it gets warm there will be a layer of thin clouds, often with higher humidity ...
0
votes
0answers
25 views

If methane is 120x more powerful that CO2 in the short term , how much warming would 50 Gt of methane cause?

I'm trying to learn how radiative forcing works, how the warming lag works? I found this old model: http://climatemodels.uchicago.edu/slugulator/slugulator.html Is it accurate? Can someone tell me ...
0
votes
1answer
34 views

Why are all the variables ( DRY_DEP_FLUX and WET_DEP_FLUX) zero in a wrf model output in all the time steps

I am working on WRF_GHG, I would like to calculate dry and wet deposition in the dry and wet seasons for CO2 and CH4 gases. However, when I check the wrf output, I see that all the variables (...
0
votes
0answers
45 views

How does the jet stream affect weather in Europe?

I researched how mid lattitude cyclones form and found it has to do with the jet stream, which is above the polar front. The pressure difference between the warm and cold air causes a pressure ...
0
votes
0answers
43 views

How are weather intensity scales created?

I am interested in the development of scales to measure extreme weather. For example, the Enhanced Fujita Scale for measuring the intensity of tornadoes, etc. How were they created? OK sure, I know ...
0
votes
0answers
16 views

Which factors determine the predominant precipitation type of supercells during tornado outbreaks?

A tale of two outbreaks. April 27, 2011 featured classic supercells that were extremely-fast moving (forward speeds of 60+ mph) in a northeast direction. James Spann noted this while covering the EF4 ...
0
votes
0answers
59 views

Why is it so warm in the Pacific Northwest of North America right now - mid April 2021?

Temperatures are 5-7 degrees Celsius above average in southwestern British Columbia, and it's surreal for it to be so warm and sunny when the deciduous trees are still mostly barren.
0
votes
0answers
21 views

Why is the mean meridional mass stream function multiplied by g/2π?

I was reading this material on the mean atmospheric meridional circulation and the definition of the meridional mass streamfunction: http://www.geo.cornell.edu/geology/faculty/Cook/Hadley_book.pdf (...
0
votes
0answers
34 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
86 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
39 views

Tropical cyclones in North Indian Ocean in winter

The North Indian Ocean basin which consists of Bay of Bengal and Arabian Sea witnesses mainly two tropical cyclone seasons: pre-monsoon and post-monsoon. My question is that what is it that causes the ...
0
votes
1answer
119 views

Why are there both climate regions from axial tilt and weather cells?

So Earth has an axial tilt and that creates weather regions. For example, approximately 23 degrees north and south, approximately the same as the planets axial tilt, will give you the tropics. This ...
0
votes
0answers
120 views

Providing Edgar emission using prep_chem_source for tracers (CO2-CH4)

I am working on CO2 and CH4 by WRF-CHEM, for providing my anthropogenic emission from Edgar data base, I'm going to use the Prep_chem_source App. I would like to use Edgar data emission (as my ...
0
votes
0answers
24 views

Finding free humidity data

I am trying to find historical humidity levels (ideally in percentage format) across the globe divided by sub-country regions or more granular. The time granularity would be daily, but hourly would ...
0
votes
0answers
44 views

Advection Fog or____________

If there is snow on the ground in the fall season, at a location 50 km away north of a warmer body of water to the south and that location is receiving fog, what is causing the fog that is occurring ...
0
votes
0answers
60 views

Can extratropical cyclones force global cooling?

We are living in a historical period of global warming since about 20,000 years ago. This global warming period is one of about ten in human history. Those periods may very well be forced to start by ...
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
votes
1answer
98 views

How to calculate rate of change of temperature with pressure in Earth's troposhere?

I was given a problem in a competitive exam from previous year: Calculate the rate of change of temperature of the Earth's troposphere with pressure ($\frac{dT}{dP}$), given Scale height, $H$, where $...

1 2 3
4