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

BER Research Highlights


Advances in High Performance Computing Improve Simulation of Extreme Precipitation Events in a Global Atmosphere Model
Published: October 05, 2009
Posted: November 06, 2009

Recent results generated by DOE-sponsored researcher Michael Wehner of Lawrence Berkeley National Laboratory demonstrate that simulations of precipitation generated from high resolution Atmospheric General Circulation Models and enabled by contemporary supercomputers produce values of comparable magnitude to high quality observations. However, at the resolutions typical of the coupled general circulation models used in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, the precipitation return values are severely underestimated. This study is an important demonstration of how advances at the DOE computing facilities are leading to dramatic improvements in vital aspects of climate change.

Reference: Wehner, M. F., R. L. Smith, G. Bala, P. D. Duffy. 2010. "The Effect of Horizontal Resolution on Simulation of Very Extreme U.S. Precipitation Events in a Global Atmosphere Model," Climate Dynamics 34(2–3), 241–247. DOI 10.1007/s00382-009-0656-y. (Reference link)

Topic Areas:

  • Research Area: Earth and Environmental Systems Modeling
  • Cross-Cutting: Scientific Computing and SciDAC

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

Aug 24, 2019
New Approach for Studying How Microbes Influence Their Environment
A diverse group of scientists suggests a common framework and targeting of known microbial processes [more...]

Aug 08, 2019
Nutrient-Hungry Peatland Microbes Reduce Carbon Loss Under Warmer Conditions
Enzyme production in peatlands reduces carbon lost to respiration under future high temperatures. [more...]

Aug 05, 2019
Amazon Forest Response to CO2 Fertilization Dependent on Plant Phosphorus Acquisition
AmazonFACE Model Intercomparison. The Science Plant growth is dependent on the availabi [more...]

Jul 29, 2019
A Slippery Slope: Soil Carbon Destabilization
Carbon gain or loss depends on the balance between competing biological, chemical, and physical reac [more...]

Jul 15, 2019
Field Evaluation of Gas Analyzers for Measuring Ecosystem Fluxes
How gas analyzer type and correction method impact measured fluxes. The Science A side- [more...]

List all highlights (possible long download time)