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12 Answered Questions for the topic Atmosphere

08/06/19

What determines how fast clouds move?

Do cirrus clouds in the upper troposphere move faster than cumulus and stratus clouds in the lower atmosphere? What about clouds associated with extratropical systems, compared with clouds in the... more

08/04/19

Synoptic weather predictibility under climate change scenarios?

Under climate change scenarios, it is quite certain that high latitude regions will experience more warming than at low latitudes. For example, in winter the reduced area of sea ice and snow cover... more

07/29/19

Are there any quantities defined analogically to the virtual temperature, but for other gases?

The [virtual temperature](https://en.wikipedia.org/wiki/Virtual_temperature) is a pseudo-temperature taking into account water vapour in the atmosphere in such a way, that the resulting quantity... more

07/27/19

Why are there different vertical gradients of temperature in different layers of the atmosphere?

The temperature of the troposphere decreases with altitude whereas it is opposite in the stratosphere and again fluctuates. Why is this so?

07/21/19

Radon is a naturally occurring radioactive gas. How does this work?

Radioactive rocks can release a gas called radon when they decay, which can build up in the basements of buildings with serious effects on people's health. Does anybody have information on how... more

07/17/19

What does the notation "kg kg-1" for units mean for specific humidity?

I am using a data set from Justin Sheffield at Princeton that includes specific humidity. The description is as follows: >"Reanalysis 6-hourly specific humidity interpolated to 1.0deg with... more

05/14/19

What is the cause of the jet streams?

Jet streams are fast-flowing currents of air in our earth's atmosphere. An enormous amount of energy is necessary to keep a jet stream going. Where does this come from and why?
Atmosphere Chemistry Density

04/14/19

what is the density of atmosphere assuming that O2 : 21% and N2 : 79%

I just can't seem to work this out, and I was thinking whether I use the ideal gas law, and find the empirical formula, but again, I have no idea.

03/19/19

Why do rocks on other solar system bodies that have an atmosphere seem to be flat?

Images taken by landers on Titan and Venus and Mars show landscapes where rocks, to me at least, are surprisingly flat. Being used to walking around in forests with roundish meter sized boulders,... more

03/14/19

How to tell if a single day of weather is an anomaly or due to climate change?

I am interested in understanding how to tell if a single day of 'abnormal' weather is due to climate change or not. From my understanding, you would compare this day's weather to historical... more
Atmosphere Chemistry Pressure

09/05/16

What is atmospheric pressure in torr? Convert this pressure to atmospheres (atm). Show Work

The atmosphere supports a column of mercury that is 748 mm in height. What is atmospheric pressure in torr? Convert this pressure to atmospheres (atm). Show Work

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