Oak Ridge Today

ORNL scientist to lead project studying permafrost thaw, climate processes in Alaska

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Colleen Iversen (Photo submitted by ORNL)

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Colleen Iversen—ecosystem ecologist, group leader, and distinguished staff scientist at Oak Ridge National Laboratory—has been named director of the U.S. Department of Energy’s Next-Generation Ecosystem Experiments Arctic, or NGEE Arctic. That is a multi-institutional project studying permafrost thaw and other climate-related processes in Alaska, a press release said.

Iversen has worked as a scientist on NGEE Arctic since 2012 and served as its deputy director from 2021-2023. She also leads a research team in the Plant-Soil Interactions Group at ORNL. Iversen succeeds Stan Wullschleger, founding director of NGEE Arctic, who retired as associate laboratory director for Biological and Environmental Systems Science at ORNL in April 2023.

Iversen, who took on the role of director and principal investigator for NGEE Arctic earlier this year, is excited about taking the reins of such a large, multidisciplinary project, the press release said.

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Ten ORNL scientists among world’s most highly cited researchers

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Oak Ridge National Laboratory (Submitted photo)

Ten scientists from Oak Ridge National Laboratory are among the world’s most highly cited researchers, according to a bibliometric analysis conducted by the scientific publication analytics firm Clarivate. 
 
The annual list identifies researchers who demonstrated significant influence in their field through the publication of multiple highly cited papers during the last decade. These researchers authored publications that rank in the top 1% by citations for field and publication year in the Web of Science citation index. 
 
“Researchers at ORNL are leading the advancement of scientific knowledge in multiple fields,” ORNL Director Thomas Zacharia said in a press release. “This recognition demonstrates that the laboratory and our scientists are engaged in cutting-edge research and development to solve some of the world’s biggest challenges.” 
 
The ORNL scientists listed are:

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ORNL part of project to study how tropical forests respond to climate change

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Amazon Tropical Rainforests

The future of tropical rainforests in the Amazon (pictured) and worldwide is the focus of a new research project that combines field experiments and predictive modeling. (Photo courtesy ORNL)

 

Researchers from Oak Ridge National Laboratory will play key roles in an expansive new project that aims to bring the future of tropical forests and the climate system into much clearer focus by coupling field research with the development of a new ecosystem model.

The project is called the Next Generation Ecosystem Experiments-Tropics, or NGEE-Tropics. Its goal is the development of a model that represents how tropical forests interact with Earth’s climate in much greater ecological detail than ever before. This will help scientists explore, more accurately than is possible today, how rising temperatures, shifting precipitation patterns, increasing greenhouse gas levels, and other natural and human-induced changes affect tropical forests’ influence on Earth’s climate.

Led by DOE’s Lawrence Berkeley National Laboratory (Berkeley Lab), the effort includes collaborators from Oak Ridge, Brookhaven, Los Alamos, and Pacific Northwest national laboratories. The study also includes researchers from the Smithsonian Tropical Research Institute, the U.S. Forest Service, the National Center for Atmospheric Research, NASA, and several institutions from other nations. [Read more…]