"The Search for Earth 2.0" --NASA's New Quests for Extraterrestrial Life
Dwarf Galaxies "Challenge Our Understanding of How the Universe Works"

"Oceans Capacity to Control Climate Critical for Extraterrestrial Life"

 

Fluffy-clouds-over-clear-ocean-12522
 

Researchers have made an important step in the race to discover whether other planets could develop and sustain life. New findings published today in the journal Astrobiology shows the vital role of oceans in moderating climate on Earth-like planets. Until now, computer simulations of habitable climates on Earth-like planets have focused on their atmospheres. But the presence of oceans is vital for optimal climate stability and habitability.

The research team from UEA’s schools of Mathematics and Environmental Sciences created a computer simulated pattern of ocean circulation on a hypothetical ocean-covered Earth-like planet. They looked at how different planetary rotation rates would impact heat transport with the presence of oceans taken into account.

“The number of planets being discovered outside our solar system is rapidly increasing," said Prof David Stevens from University of East Anglia’s school of Mathematics. New research will help answer whether or not these planets could sustain alien life. We know that many planets are completely uninhabitable because they are either too close or too far from their sun. A planet’s habitable zone is based on its distance from the sun and temperatures at which it is possible for the planet to have liquid water. But until now, most habitability models have neglected the impact of oceans on climate.

“Oceans have an immense capacity to control climate. They are beneficial because they cause the surface temperature to respond very slowly to seasonal changes in solar heating. And they help ensure that temperature swings across a planet are kept to tolerable levels.

“We found that heat transported by oceans would have a major impact on the temperature distribution across a planet, and would potentially allow a greater area of a planet to be habitable.

“Mars for example is in the sun’s habitable zone, but it has no oceans – causing air temperatures to swing over a range of 100°C. Oceans help to make a planet’s climate more stable so factoring them into climate models is vital for knowing whether the planet could develop and sustain life.

“This new model will help us to understand what the climates of other planets might be like with more accurate detail than ever before.”

‘The Importance of Planetary Rotation Period for Ocean Heat Transport’ is published in the journal Astrobiology on Monday, July 21, 2014. The research was funded by the Engineering and Physical Sciences Research Council (EPSRC).

The Daily Galaxy via University of East Anglia 

Image credit: wallconvert.com

Comments

Everyone!

The Environmental Protection Agency (EPA) is in motion to RAISE the amounts of radiation released from nuclear power plants!

If you don't know, nuclear power plants release radiation into the air and water
during their "normal" operations.

Studies have shown higher rates of CHILDHOOD LEUKEMIA and BREAST CANCER in people living near or downwind of nuclear power plants.

The EPA is asking for your opinion on this by August 4th.

Please take a second for the sake of your children and grandchildren to tell the EPA
"no thank you" to raising radiation amounts.

Commenting is quick, anonymous and easy-->

http://www.regulations.gov/#!submitComment;D=EPA-HQ-OAR-2013-0689-0001

Thank you!

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)