Questions tagged [pressure]
The pressure tag has no usage guidance.
16
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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 ...
-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 $...
0
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1answer
82 views
Is surface temperature relevant for the creation of high- and low pressures areas?
Trying to truly understand high- and low-pressure systems, I find explanations contradicting.
The question is: Where is the mistake in my line of thoughts?
Looking from a surface point of view:
More ...
1
vote
1answer
82 views
What would happen if the inner core bulged and moved a tiny bit?
The inner core is solid only because of the very high pressure of the outer core and mantle . Say, if the inner core moved a teeny tiny bit would some of it liquify and melt? Or does it stay solid?
...
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0answers
21 views
What is the westerly index?
This was asked in aviation stack exchange and the best answer (credit:ymb1) was:
The westerly index is the Trenberth Z1 index (Trenberth 1976), which is the departure of the monthly mean pressure ...
6
votes
2answers
162 views
Why should there not be water deep (e.g. below 6 kms) in the Earth's crust?
In 1970, the USSR began drilling at the Kola Super-deep Borehole. The target depth was 15,000 meters;
The stated areas of study were the deep structure of the Baltic Shield, seismic discontinuities ...
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)
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1
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1answer
55 views
How do I find the temperature of the air mass, and how do I use a t-skew chart?
So the first problem I'm stuck on is this one:
An airmass is moving down a mountain from point A to B. At A the temperature is -10 Celsius and the pressure is 890hPa. At point B the pressure is 1010 ...
6
votes
1answer
302 views
What is the explanation of using pressure units (hPa) to express height when dealing with wind speeds?
I am trying to understand how prevailing winds and jet stream currents are formed and how they are varying in speed and direction.
When looking at different wind speeds at different altitudes on ...
1
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0answers
107 views
Hybrid-Sigma pressure levels and geopotential heights
Taking a sounding prediction from GFS 1° horizontal resolution(from ready.arl.noaa.gov) with normal pressure levels looks like this:
...
4
votes
2answers
87 views
Extent of desert area influence in local climate
With reference to this image...:
...from this recent tweet, I was wondering to what extent would Mediterranean regions be affected by the large desert areas to its South?
"Affected", here meaning ...
1
vote
2answers
58 views
How much does the weight of urban structures (buildings) affect the compaction (permeability, porosity, density) of alluvial sediments below a city?
I live in Van, Turkey. Van City is situated on an alluvial plain beside Lake Van. General geological structure of the area can be seen on pages 43-44 in this conference book. One of the images is ...
-3
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1answer
427 views
Could someone please validate the Holmes equation [closed]
Dr. Robert Holmes has converted the ideal gas law to T = P M / (ρ R) in this paper: (Molar Mass Version of the Ideal Gas Law Points to a Very Low Climate Sensitivity) with T = temperature P = near-...
1
vote
1answer
69 views
How to predict when the pressure will change
For example, on windy.com I see that there is a high pressure area to the west of Washington in the Pacific Ocean. What heuristic techniques could I use to guess if the high pressure area will migrate ...
2
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0answers
55 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 ...
0
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0answers
69 views
How much increase in the atmospheric pressure when the global temperature is elevated by 10 C?
In this paper Temperature-dependent hypoxia explains biogeography and severity of end-Permian marine mass extinction is established a link between an increase of the global temperature by $10^\circ ...
