Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Study Sheds Light on Global Warming Trends

07.05.2014

New research by a team of Florida State University scientists shows the first detailed look at global land surface warming trends over the last 100 years, illustrating precisely when and where different areas of the world started to warm up or cool down.

The research indicates that the world is indeed getting warmer, but historical records show that it hasn’t happened everywhere at the same rate.

And that new information even took scientists by surprise.

“Global warming was not as understood as we thought,” said Zhaohua Wu, an assistant professor of meteorology at FSU.

Wu led a team of climate researchers including Fei Ji, a visiting doctoral student at FSU’s Center for Ocean-Atmospheric Prediction Studies (COAPS); Eric Chassignet, director of COAPS; and Jianping Huang, dean of the College of Atmospheric Sciences at Lanzhou University in China.

The group, using an analysis method newly developed by Wu and his colleagues, examined land surface temperature trends from 1900 onward for the entire globe, minus Antarctica.

Previous work by scientists on global warming could not provide information of non-uniform warming in space and time due to limitations of previous analysis methods in climate research.

The research team found that noticeable warming first started around the regions circling the Arctic and subtropical regions in both hemispheres. But the largest accumulated warming to date is actually at the northern midlatitudes. They also found that in some areas of the world, cooling had actually occurred.

“The global warming is not uniform,” Chassignet said. “You have areas that have cooled and areas that have warmed.”

For example, from about 1910 to 1980, while the rest of the world was warming up, some areas south of the equator — near the Andes — were actually cooling down, and then had no change at all until the mid 1990s. Other areas near and south of the equator didn’t see significant changes comparable to the rest of the world at all.

The team’s work is featured in the May 4 edition of the journal Nature Climate Change.

The detailed picture of when and where the world has warmed or cooled will provide a greater context to global warming research overall, Wu said.

Kathleen Haughney | newswise
Further information:
http://www.fsu.edu

Further reports about: Antarctica Arctic Atmospheric COAPS Change Ocean-Atmospheric equator hemispheres

More articles from Earth Sciences:

nachricht Satellite Views Early Thanksgiving Travel Trouble Areas in U.S.
26.11.2014 | NASA's Goddard Space Flight Center

nachricht Unmanned underwater vehicle provides first 3-D images of underside of Antarctic sea ice
25.11.2014 | National Science Foundation

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

Regional economic cooperation in Central Asia

21.11.2014 | Event News

Educating the Ecucators

13.11.2014 | Event News

36th Annual IATUL Conference 2015: Call for papers and posters

12.11.2014 | Event News

 
Latest News

Siemens expands software for mobile data management in the process industry

26.11.2014 | Trade Fair News

Microbial Communities for Health and Environment : Precise Measurements of Microbial Ecosystems

26.11.2014 | Life Sciences

VTT demonstrates new technique for generating electricity

26.11.2014 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>