U.S. Department of Energy Office of Biological and Environmental Research

BER Research Highlights


DOE Abrupt Climate Change Modeling Research Discussed in January 2009 Issue of Popular Science
Published: January 19, 2009
Posted: May 20, 2009

Until recently, the focus of climate modeling research has been to characterize trends in gradual warming and its long-term effects.  Now, DOE has initiated modeling research on abrupt climate change aimed at articulating the thresholds, nonlinearities, and fast feedbacks in the climate system.  This research is examining both attribution of recent past abrupt climate change as well as potential future abrupt climate change based on climate change projections using dynamical coupled climate models.  By including causal mechanisms, the effort could result in the incorporation of abrupt climate change into coupled climate models and would test the improved models against observational records of past abrupt climate change.  Examples of abrupt climate change of interest include mega droughts, rapid changes in Arctic sea-ice extent and duration, and potential rapid increases in sea level rise.  Most current climate models are unable to simulate past abrupt climate change events with fidelity.  It is anticipated that this new activity will lead to more credible, improved models of climate change.

Reference: The January issue of Popular Science includes interviews with several leading climate change scientists involved in DOE' new abrupt climate change research.  [link expired: http://www.laura-allen.com/pdfs/Popsci_Meltdown_LA.pdf]

Contact: Anjuli Bamzai, SC-23.1, (301) 903-0294
Topic Areas:

  • Research Area: Earth and Environmental Systems Modeling

Division: SC-23.1 Climate and Environmental Sciences Division, BER

 

BER supports basic research and scientific user facilities to advance DOE missions in energy and environment. More about BER

Recent Highlights

May 10, 2019
Quantifying Decision Uncertainty in Water Management via a Coupled Agent-Based Model
Considering risk perception can improve the representation of human decision-making processes in age [more...]

May 09, 2019
Projecting Global Urban Area Growth Through 2100 Based on Historical Time Series Data and Future Scenarios
Study provides country-specific urban area growth models and the first dataset on country-level urba [more...]

May 05, 2019
Calibrating Building Energy Demand Models to Refine Long-Term Energy Planning
A new, flexible calibration approach improved model accuracy in capturing year-to-year changes in bu [more...]

May 03, 2019
Calibration and Uncertainty Analysis of Demeter for Better Downscaling of Global Land Use and Land Cover Projections
Researchers improved the Demeter model’s performance by calibrating key parameters and establi [more...]

Apr 22, 2019
Representation of U.S. Warm Temperature Extremes in Global Climate Model Ensembles
Representation of warm temperature events varies considerably among global climate models, which has [more...]

List all highlights (possible long download time)