Weather Forecast Vostok, Antarctica | Vostok Weather | Wunderground
This does not mean that dry ice will accumulate, because the low partial pressure of CO2 in the air means that frozen CO2 molecules will sublimate at an average rate as fast as they can freeze.
Coldest Temperature on Earth
the temperature in Vostok, Antarctica, dropped to nearly -89.2 °C, the lowest temperature ever recorded on Earth.” -89.2 °C. World Book Encyclopedia. New York ..
A little pee on your bonfire Ste.
Vostock ~11,200′ Alt. Means an air pressure drop of around 25%. That will affect the sublimation by a degree or so. But hey. A Mars like Earth and going off the present weather/Solar effects means colder to come in future years!
Look closely at the phase diagram and try again.
Lower pressures means sublimation temperature.
Sea level = -78C
0.1 atmosphere, say, -100C
Air pressure at Vostock @ 3420m has to mean a couple of degree’s lower than -78C?
Rough:- 100-78=21C over 90%. (25/90)*21+78=
-84C
I was the one who pointed CO2 freezing. We might be almost there.
What am I getting wrong?
It is a log scale on the y-axis. A 25% drop would lower the freezing point to about -80C. The temperature is -81C.
What’s 3C amongst friends” 🙂
Regardless of CO2 freezing points, a big point is that we’ve hit -114°F again. That ties the current recent record. Let’s see if we push below that.
I’ve got it 🙂 We can send all the CO2 to Antarctica, freeze it, then sell it back to grocery stores 🙂
We could make a killing and save the planet at the same time 🙂
While making lots more CO2, CO, and lots of other nasty stuff shipping it to and fro.Unintended consequences? Oops! Save the planet? Leave it alone. It will take care of itself.
Since when is CO2 “nasty stuff”
CO2 is the ‘stuff’ of life!
I agree, sequestrate CO2 and destroy life! Anyone happen to know how altitude affects the freezing point of CO2?
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That low is way off the record. Aug 10, 2010 it was -135F in Antarctica. Check APOD- http://apod.nasa.gov/apod/ap131211.html