Featured Research

from universities, journals, and other organizations

New NCAR Climate System Model Shows Earth's Surface Temperature To Rise 0.2 K Per Decade

Date:
December 15, 1998
Source:
National Center For Atmospheric Research (NCAR)
Summary:
The earth's mean surface temperature is expected to rise nearly 0.2 Kelvin (one-third degree Fahrenheit) per decade over the next four decades, according to a new modeling study using the climate system model (CSM-1) developed at the National Center for Atmospheric Research.

BOULDER--The earth's mean surface temperature is expected to rise nearly 0.2 Kelvin (one-third degree Fahrenheit) per decade over the next fourdecades, according to a new modeling study using the climate systemmodel (CSM-1) developed at the National Center for Atmospheric Research(NCAR). NCAR scientists have just completed 170 years (1870-2040) oftheir two-century simulation of the earth's climate through 2100. NCAR'sByron Boville presented these results December 9 at the fall meeting ofthe American Geophysical Union in San Francisco. Other results expectedby the end of the year will include climate changes related toprecipitation, cloudiness, and basin-scale run-off. NCAR's primarysponsor, the National Science Foundation (NSF), funded the research,with additional computing time provided by the Electric Power ResearchInstitute.

The CSM-1 is a physical climate model employing coupled atmosphere andocean general-circulation models, a sea-ice model, and a land-biophysicsand simple hydrology model. It is one of the few current climate modelsthat maintain a stable surface climate over hundreds of years withoutthe need for artificial corrections.

The climate simulations were driven by observed changes in atmospherictrace-gas concentrations for the period 1870-1990 and two projectedtrace-gas scenarios for the period 1990-2100. The greenhouse gasesincluded in the model are carbon dioxide, methane, nitrous oxide, andchlorofluorocarbons 11 and 12. Emissions of sulfur dioxide (SO2)resulting from human activity are also included, with projectedincreases over time. Natural SO2 emissions were assumed to be constant.SO2 is important because it is converted in the atmosphere into sulfateaerosol, which reflects some sunlight back into space and may slow orreverse global warming trends in certain regions.

NCAR is managed by the University Corporation for Atmospheric Research,a consortium of more than 60 universities offering Ph.D.s in atmosphericand related sciences.

-The End-

Find this news release on the World Wide Web at http://www.ucar.edu/publications/newsreleases/1998/csmagubb.html

To receive UCAR and NCAR news releases by e-mail,telephone 303-497-8601 or e-mail butterwo@ucar.edu


Story Source:

The above story is based on materials provided by National Center For Atmospheric Research (NCAR). Note: Materials may be edited for content and length.


Cite This Page:

National Center For Atmospheric Research (NCAR). "New NCAR Climate System Model Shows Earth's Surface Temperature To Rise 0.2 K Per Decade." ScienceDaily. ScienceDaily, 15 December 1998. <www.sciencedaily.com/releases/1998/12/981214121158.htm>.
National Center For Atmospheric Research (NCAR). (1998, December 15). New NCAR Climate System Model Shows Earth's Surface Temperature To Rise 0.2 K Per Decade. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/1998/12/981214121158.htm
National Center For Atmospheric Research (NCAR). "New NCAR Climate System Model Shows Earth's Surface Temperature To Rise 0.2 K Per Decade." ScienceDaily. www.sciencedaily.com/releases/1998/12/981214121158.htm (accessed September 17, 2014).

Share This



More Earth & Climate News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Researchers Explore Shipwrecks Off Calif. Coast

Researchers Explore Shipwrecks Off Calif. Coast

AP (Sep. 16, 2014) Federal researchers are exploring more than a dozen underwater sites where they believe ships sank in the treacherous waters west of San Francisco in the decades following the Gold Rush. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Isolated N. Korea Asks For International Help With Volcano

Isolated N. Korea Asks For International Help With Volcano

Newsy (Sep. 16, 2014) Mount Paektu volcano in North Korea is showing signs of life and there's not much known about it. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins