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

BER Research Highlights


Improving Deep Cloud Formation in a Global Climate Model
Published: February 01, 2010
Posted: February 10, 2010

DOE scientists have improved a global climate model and its predictions by improving understanding of three critical aspects of tropical clouds and their interaction with the environment: atmospheric perturbation, thunderstorm formation, and thunderstorms impacts on the environment. Many global climate models poorly predict tropical weather and climate patterns and uncertainties. Representation of tropical cloud processes are responsible for many deficiencies in almost all climate models' projections. By using improved cloud formulations, tropical cloud features such as the spatial distribution of thunderstorm clouds, and eastward movement of storm clouds clusters are better simulated and are closer to observations. These improved simulations enhance the credibility of climate predictions and climate change projections.

Reference: Deng, L., and X. Wu, 2009: Effects of Convective Processes on GCM Simulations of the Madden-Julian Oscillation. Journal of Climate, 23, DOI: 10.1175/2009JCLI3114.1, 352-377.

Contact: Kiran Alapaty, SC-23.1, (301) 903-3175
Topic Areas:

  • Research Area: Earth and Environmental Systems Modeling
  • Research Area: Atmospheric System Research

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)