Advancing the predictive power of Earth system models through understanding
of the structure and function of Arctic terrestrial ecosystems
Progress & Accomplishments
Impacts of microtopographic snow-redistribution and lateral subsurface processes on hydrologic and thermal states in an Arctic polygonal ground ecosystem: Development and testing in the E3SM Land Model
The NGEE-Arctic and E3SM Land Model (ELM) groups recognize the importance of 3-dimensional processes, so we developed an ELM version that includes thermal and hydrological dynamics to investigate these processes at the BEO.
We started a replicated (n=5 chambers) warming experiment in Barrow, AK. The experiment uses solar radiation to warm vegetation and will enable us to understand thermal acclimation of respiration and photosynthesis in Arctic vegetation.
LBNL Researchers Evaluate Methane Production, Oxidation, and Emissions Across Polygon Tundra Gradients
Using field measurements of methane flux and stable isotopes, NGEE Arctic researchers identify spatial patterns in methane emissions and underlying metabolic processes across polygon types and features
BNL Plant Physiologist Publishes Roadmap for Improving Representation of Photosynthesis in Earth System Models
Scientist on the NGEE Arctic project examines how photosynthesis is represented in seven terrestrial biosphere models and makes community-wide recommendations to improve estimates of carbon uptake by terrestrial vegetation