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September 28, 2011

The Climate of Venus

Most of us have known since early on that Venus, although the second closet planet to the sun, is the hottest. An article on the Science Daily website looked into this. Because of the thick sulfuric clouds that hover above the planets surface the temperature bakes at around 800 degrees Fahrenheit most days, with little variation from day to day in that temperature. As we learned in class the earth has its seasons because its axis is tilted by around 23 degrees. Venus, however, has only an axis tilt of three degrees so this effect doesn’t really happen. In addition temperatures don’t cool down any significant amount when one part of the planet is at night because the thick buildup of clouds keeps heat trapped in and temperatures up.

Conversely the upper atmosphere, specifically the mesosphere and thermosphere, see some drastic temperature change. In the mesosphere scientists have seen as much as a 54 degrees Fahrenheit change in the temperature in one earth day. One theory for this is the volatile air currents carrying warm and cool air traveling in different directions at hundreds of miles per hour. Some of the hot air and cold air exchanges layers and causes rapid heating and cooling. The surface of Venus would be like an oven, and the upper atmosphere like a broken shower going from scolding hot water to cold water.

Read the full article at http://www.sciencedaily.com/releases/2011/09/110927171052.htm

Posted by sjbar at September 28, 2011 06:39 PM


That's interesting that you compared the temperatures there to an oven and broken shower, which makes it easier to understand just how uncomfortable the temperatures are there.

Posted by: charwei at September 29, 2011 04:27 PM

I find it interesting that becuause there is only a three degree axis tilt, there aren't really any seasons like on Earth. It's also interesting how extreme those temperatures are compared to the Earth.

Posted by: mrkapila at September 30, 2011 09:08 PM

I think I read a similar article recently, I found this really interesting since it talked about the few degree tilt axis of Venus makes its weather boring. This knowledge is just what we learned in this class.

Posted by: zhengxi at September 30, 2011 09:34 PM

Just booked my ticket for the next flight there. sounds like a wonderful vacation spot during winter. joking aside I wonder what it would take to create remote probes that could enter and return data from inside that kind of atmosphere.

Posted by: larken at September 30, 2011 10:25 PM

It is so interesting how the tilt of a planet makes all the difference is temperature/seasons. This article is shows us how the other planets, like Venus, vary so much in comparison to Earth showing how space is a large realm of differences.

Posted by: jenpm at October 2, 2011 07:58 PM

I love the similes (surface of Venus like an oven, and upper atmosphere like a broken shower going from hot to cold). This really helps your explanation of Venus's climate. Really cool article, I didn't know its atmosphere varied in temperature so drastically.

Posted by: mhymes at October 9, 2011 07:17 PM

I thought that it was really cool that Venus has become so tilted to the point where it is now upside down and the seasonal tilt is negligible. I wonder if there would be a way to ever brake the thick clouded atmosphere up....

Posted by: rmbonds at October 10, 2011 10:24 PM

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