Progress and Accomplishments

The Alaska Arctic Vegetation Archive (AVA-AK)

NGEE Arctic scientists contribute to an international database of vegetation data from the Alaskan Arctic tundra

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

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.

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

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

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.

Scientists Gather for NGEE Arctic All-Hands Meeting

Participants, guests, and partners in the NGEE Arctic project met at the PARC 55 Hotel in San Francisco to review progress and accomplishments, and outline plans for the coming year.

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