Science Highlights

Bromide Tracer Studies Quantify Vertical and Horizontal Flow in Low- and High-centered Polygons

The study provides new insight into hydrological processes of low- and high-centered polygon systems, where flow and transport field investigations are almost totally lacking.

Creating a Safe, Secure, Open, and Inclusive Project

Leadership team takes time and intentional steps to build a culture of safety and respect across the project.

Impacts of Stoichiometry Traits on Carbon Accumulation using the E3SM Land Model

Plant stoichiometric flexibility controls the CO2 fertilization effect on ecosystem carbon accumulation.

Arctic Soil Governs Whether Climate Change Drives Losses or Gains in Soil Carbon

Multiple models are needed to capture true uncertainty of soil carbon fate in a changing world.

Understanding Vertical and Horizontal Flow in Ice-Wedge Polygons

Novel bromide tracer experiments are used to develop a model of subsurface flow and transport within ice-wedge polygons.

Unfrozen Permafrost Presence in Shrub-Dominated Landscapes

Field observations and model simulations confirm the presence of unfrozen permafrost in shrub-dominated landscapes.

Tundra Plant Trait Database

Worldwide trait database addresses long-standing questions about trait-environment relationships and provides an unprecedented digital resource to inform Earth system models.

Mapping Vegetation Communities using Convolutional Neural Networks

Artificial intelligence applied to multiple remote sensing datasets accurately represents shrub distribution across hillslopes at the Kougarok field site.

Photosynthesis by Tundra Plants Sensitive to Low Temperatures

Light-harvesting processes involved in photosynthesis by tundra plants are unexpectedly sensitive to growth at low temperatures.

NGEE Arctic and EMSL collaborate to provide molecular-scale insights into SOM degradation

Biochemical composition is proposed to improve process-based models of SOM degradation and climate feedbacks