Questions tagged [barometric-pressure]
45 questions
10
votes
3 answers
Pressure as a function of altitude above 11 km
I need to calculate the force that causes a weather balloon with a specific volume to rise. Having searched for quite a few hours, I found the needed formula that can be used to calculate the pressure at a certain altitude. (surprisingly, the…
Tacticus
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8
votes
1 answer
Relationship between atmospheric density and atmospheric pressure?
I am slightly confused as to how the following statement is true:
As the density of the Earth’s atmosphere decreases, the average atmospheric surface pressure remains the same
As dictated by the equation $P = \rho R_mT$, where P is pressure ρ is…
Shan
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4
votes
0 answers
Converting between sea level and surface pressure values in HRRR dataset
https://rapidrefresh.noaa.gov/hrrr/
In this dataset's GRIB format files, there are two variables representing an atomspheric pressure forecast: (output as opened with pygrib)
41:MSLP (MAPS System Reduction):Pa (instant):lambert:meanSea:level 0:fcst…
nil
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1
vote
1 answer
At what point is the atmospheric pressure considered to be high or low?
I am working with a program that I want to inform the atmospheric pressure level at atm and if the pressure is high, low or average in a certain location, but I have not found anywhere on the internet that can give me an idea of how to calculate…
Wardy Guardian
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