Advancing the predictive power of Earth system models through understanding
of the structure and function of Arctic terrestrial ecosystems
Progress & Accomplishments
NGEE Arctic Metadata Statistics
These statistics reflect metadata submission since its implementation in the spring of 2014. Metadata records reflect a combination of data, information and documentation that form a collection.
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
Modeling the Spatiotemporal Variability in Subsurface Thermal Regimes across a Low-Relief Polygonal Tundra Landscape
Study develops an end-to-end high resolution modeling framework to simulate permafrost thermal dynamics of microtopography dominated polygonal tundra landscape
UAF Researchers “Scale Up” Permafrost Thermal Measurements in Western Alaska Using an Ecotype Approach
Field scientists develop a ground temperature map for western Alaska based on measured relationships between ground thermal regimes and vegetation ecotypes
Initial UAS Flights by LBNL Facilitate Planning for FY17
Sebastien Biraud provided an initial glimpse of what UAS flights could mean for integration of above- and below-ground research at field sites on the Seward Peninsula
A Multi-Scale Comparison of Modeled and Observed Seasonal Methane Emissions in Northern Wetlands
Collaborative team improved the methane module in CLM and ALM and compared predictions with NGEE-Arctic and other tower observations, NASA CARVE aircraft observations, and two atmospheric inversions and highlight new ways to improve global CH4 predictions
Biogeochemical Modeling of CO2 and CH4 Production in Anoxic Arctic Soil Microcosms
Explicit aqueous phase redox, pH, and mineral interaction dynamics were coupled to the Converging Trophic Cascade (CTC) decomposition model, enabling prediction of CO2 and CH4 production from Arctic polygonal tundra soils.
CMDV Liaison Positions between NGEE Projects and ACME Established
Four 0.5 FTE positions were funded under the CMDV project to facilitate communication and model development collaborations between NGEE Arctic, NGEE Tropics, and the ACME Land Model (ALM).
