Green business, green careers and job training
Solutions that build smart communities with green careers and sustainable businesses!
HOME
EDITOR'S BLOG
FEATURE ARTICLES
GET STARTED

Save on Career Education through Lorman Education

Our readers are offered a discount on Lorman seminars and courses. Check out their business, management and legal offers at this link to qualify for our discounts. They also offer green business training opportunities. Please visit http://www.lorman.com/training/CaliforniaGreenSolutions for a complete listing of courses. Register online or call Lorman at 866-352-9539.
Home > Natural Resources

Community Earth System Model for Climate Change Assessments

Community Earth System Model used by decision makers in diverse Climate Change Assessment arenas need to know the extent to which the climate events they see are the product of natural variability, and hence can be expected to reverse at some point.

Find green business solutions
Scientists can now study climate change in far more detail with powerful new computer software released by the National Center for Atmospheric Research (NCAR) in Boulder, Colo.

Community Earth System Model

The Community Earth System Model will be one of the primary climate models used for the next assessment by the Intergovernmental Panel on Climate Change (IPCC).

The CESM is the latest in a series of NCAR-based global models developed over the last 30 years. The models are jointly supported by the U.S. Department of Energy (DOE) and the National Science Foundation (NSF), which is NCAR's sponsor.

Scientists and engineers at NCAR, DOE laboratories, and several universities developed the CESM.

"The Community Earth System Model is yet another step toward representing improved physics and biogeochemistry in a coupled model," says Anjuli Bamzai, program director in NSF's Division of Atmospheric and Geospace Sciences, which funds NCAR.

"As our understanding of climate-relevant processes improves, it is imperative to represent these processes in the model."

The new model's advanced capabilities will help scientists shed new light on some of the critical mysteries of global warming, including:

  • What impact will warming temperatures have on the massive ice sheets in Greenland and Antarctica?
  • How will patterns in the ocean and atmosphere affect regional climate in coming decades?
  • What will be the likely interaction of climate change and tropical cyclones, including hurricanes?
  • How will tiny airborne particles, known as aerosols, affect clouds and temperatures?

The CESM is one of about a dozen climate models worldwide that can be used to simulate the many components of Earth's climate system, including the oceans, atmosphere, sea ice, and land cover.

The CESM and its predecessors are unique among these models in that they were developed by a broad community of scientists. The model is freely available to researchers worldwide.

"With the Community Earth System Model, we can pursue scientific questions that we could not address previously," says NCAR scientist James Hurrell, chair of the scientific steering committee that developed the model.

"Thanks to its improved physics and expanded biogeochemistry, it gives us a better representation of the real world."

Climate System Computer Models

Climate scientists rely on computer models to better understand Earth's climate system because they cannot conduct large-scale experiments on the atmosphere itself.

Climate models, like weather models, rely on a three-dimensional mesh that reaches high into the atmosphere and into the oceans.

At regularly spaced intervals, or grid points, the models use laws of physics to compute atmospheric and environmental variables, simulating the exchanges among gases, particles, and energy across the atmosphere.

Because climate models cover far longer periods than weather models, they cannot include as much detail. Thus, climate projections appear on regional to global scales rather than local scales. This approach enables researchers to simulate global climate over years, decades, or millennia. To verify a model's accuracy, scientists typically simulate past conditions and then compare the model results to actual observations.

The CESM builds on the Community Climate System Model, which NCAR scientists and collaborators have regularly updated since first developing it more than a decade ago. The new model enables scientists to gain a broader picture of Earth's climate system by incorporating more influences.

Using the CESM, researchers can now simulate the interaction of marine ecosystems with greenhouse gases; the climatic influence of ozone, dust, and other atmospheric chemicals; the cycling of carbon through the atmosphere, oceans, and land surfaces; and the influence of greenhouse gases on the upper atmosphere. In addition, an entirely new representation of atmospheric processes in CESM will allow researchers to pursue a much wider variety of applications, including studies of air quality and biogeochemical feedback mechanisms.

Scientists have begun using both the CESM and the Community Climate System Model for an ambitious set of climate experiments to be featured in the next IPCC assessment reports, scheduled for release during 2013-14.

Most of the simulations in support of that assessment are scheduled to be completed and publicly released beginning in late 2010, so that the broader research community can complete its analyses in time for inclusion in the assessment. The new IPCC report will include information on regional climate change in coming decades.

Ocean-Atmosphere Pattern Studies

Using the CESM, Hurrell and other scientists hope to learn more about ocean-atmosphere patterns such as the North Atlantic Oscillation and the Pacific Decadal Oscillation, which affect sea surface temperatures as well as atmospheric conditions.

Such knowledge, Hurrell says, can eventually lead to forecasts spanning several years of potential weather impacts, such as a particular region facing a high probability of drought, or another region likely facing several years of cold and wet conditions.

"Decision makers in diverse arenas need to know the extent to which the climate events they see are the product of natural variability, and hence can be expected to reverse at some point, or are the result of potentially irreversible, human-influenced climate change. CESM will be a major tool to address such questions."

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering.



Edited by Carolyn Allen, owner/editor of California Green Solutions
Green Solution Providers
Green companies directory
Submit
your green solutions - business, nonprofit, government program.
It's free.
| climate change |

Share in Social Media

Sign Up For News & Information
Subscribe to our free solutions newsletter
BONUS DOWNLOAD (PDF)
"Ten+ Tips for Greening Your Office"

SUBSCRIBE HERE
Read prior issues: California GreenLines

Search For Green Solutions

Custom Search
Green Career Center
Green Job Wizard
Career Certifications Directory

green job training certifications
Green Biz Center
Solutions For Green
Directory of Green Companies

Solutions for Alternative Energy

rose in natural systems
Green Living Center
Solutions for Green: Consumers

Solutions for Remodeling

Backyard Nature Center

INSTANT GREEN POLL

"Knowing is not enough; we must apply. Willing is not enough; we must do." Goethe
RECENT ARTICLES
SITE NAVIGATION
ABOUT US

Related Articles

Understanding How Water Flows Affect Climate Change... Then and Now

Free Webinar | Climate Change Adaptation Tools for Addressing Water Issues, Dec 2

Bill Gates Innovates Ideas about Energy and Climate

Related Green Resources

Marcom Tips
Interactive & Video Tips

Career Resources

We encourage lifelong learning to support sustainable communities and provide these select resources to help you pursue green and sustainable self-development:

Lorman Business Training Directory of On-line Business and Compliance Classes

Green Job Wizard Job and Career Certifications Directory

Job & Career Resources

Governance
Management
Manufacturing
Operations
Facilities
Transportation
Finance
Sales & Marketing
Human Resources

Green Economy

Business Sectors
Natural Resources

Solutions For Green

About Us ~ Privacy Policy
Contact Us ~ Home

Text Link Ads

AD: Place your link here

ABOUT CALIFORNIA GREEN SOLUTIONS

We help you green your career, workplace and community by connecting you to quality green, sustainable and high performance resources. California Green Solutions focuses attention on effective solutions that sustain our natural systems. You can support our editorial work by supporting our advertisers and spreading the word about best practices and green solutions.
California Green Solutions is a publication of Carolyn Allen ~ Copyright ©2006-2030 Carolyn Allen

B2B | Job Certifications | Alternative Energy | Events | Green Directory | LED Lights | Remodeling |
CONSUMERS | Backyard Nature | Senior Health | MultiMedia Marketing | Marketing | Networking Events | Japan |