Science Highlights | NGEE Arctic

Model-data Comparison Highlights Overlooked Processes in Models of Soil Moisture and Hydrology

Most models project a long-term drying of the surface soil for the permafrost region despite increases in the net air–surface water flux.

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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.

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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.

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

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

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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.

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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.

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Unfrozen Permafrost Presence in Shrub-Dominated Landscapes

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

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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.

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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.

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Depiction of vegetation community type computing.

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.

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