Advancing the predictive power of Earth system models through understanding
of the structure and function of Arctic terrestrial ecosystems
Progress & Accomplishments
Methane Oxidation in Degraded Polygonal Tundra
Significant methane oxidation activity was observed in incubations of flat-centered polygon transitional soil and permafrost layers, which also exhibited high levels of methane production activity under anoxic conditions.
Demonstration of CLM-PFLOTRAN Coupling Lays a Foundation for Biogeochemistry Simulation Across Scales
An implicit time-stepping model for decomposition, nitrification, denitrification, and plant nutrient uptake was implemented in the Community Land Model (CLM), the land ecosystem component of a coupled Earth System Model.
Uncovering Labile Soil Organic Matter Degradation Pathways in Polygonal Tundra
Permafrost thaw and climate warming accelerates frozen soil organic carbon (SOC) degradation and emission of greenhouse gases, but what specific degradation pathways for labile SOC occur prior to CH4 and CO2 production are not well understood.
NGEE Arctic Data Management Team Working with NGEE Tropics
The ORNL NGEE Arctic Data Management Team (DMT) is lending expertise and tools deployed for the NGEE Arctic data effort to the NGEE Tropics project. The DMT has deployed a multi-faceted system for NGEE Arctic comprised of the On-line Metadata Editor (OME)
Metadata and NGEE Arctic Search Tool Statistics - March 31, 2016
These statistics reflect metadata submission and usage of the NGEE Arctic Search Tool since its implementation in the spring of 2014. Metadata records reflect a combination of data, information and documentation that form a collection. While all metadata