BER launches Environmental System Science Program. Visit our new website under construction!

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

BER Research Highlights


New Model Describes Links Between Vertical Air Motion and Arctic Cloud Properties
Published: March 09, 2009
Posted: March 27, 2009

DOE scientists have developed a model that explains aspects of the life-cycle of low-altitude Arctic clouds using ground-based measurements from the Atmospheric Radiation Measurement (ARM) user facility. These clouds are often called mixed-phase clouds because of the co-existence of both water and ice. Lifting of air in these clouds leads to formation of liquid and ice particles. Subsequent descending air motion nearly eliminates the ice phase through sublimation and particles falling out of the clouds. It is important to understand the role of vertical air motion in determining the distribution of liquid and ice particles in these clouds because of their direct impact on Arctic climate through changes in the surface and atmospheric radiation budgets. These findings pave the way for improved representation of clouds in climate models.

Reference: Shupe, M. D., P. Kollias, P. O. G. Persson, and G. M. McFarquhar, 2008:  Vertical motions in Arctic mixed-phase stratiform clouds.  J. Atmos. Sci. 65, 1304-1322.

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

  • Research Area: Atmospheric System Research
  • Facility: DOE ARM User Facility

Division: SC-33.1 Earth 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

Mar 23, 2021
Molecular Connections from Plants to Fungi to Ants
Lipids transfer energy and serve as an inter-kingdom communication tool in leaf-cutter ants&rsqu [more...]

Mar 19, 2021
Microbes Use Ancient Metabolism to Cycle Phosphorus
Microbial cycling of phosphorus through reduction-oxidation reactions is older and more widespre [more...]

Feb 22, 2021
Warming Soil Means Stronger Microbe Networks
Soil warming leads to more complex, larger, and more connected networks of microbes in those soi [more...]

Jan 27, 2021
Labeling the Thale Cress Metabolites
New data pipeline identifies metabolites following heavy isotope labeling.

Analysis [more...]

Aug 31, 2020
Novel Bacterial Clade Reveals Origin of Form I Rubisco
Objectives

  • All plant biomass is sourced from the carbon-fixing enzyme Rub [more...]

List all highlights (possible long download time)