Progress & Accomplishments

Katrina Bennett to assume Q5 co-leadership responsibilities

Opportunities emerge for leadership in the NGEE Arctic project and we welcome Katrina Bennett to her new co-lead responsibilities for permafrost hydrology.

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Permafrost Thermal Conditions are Sensitive to Shifts in Snow Timing

Numerical experiment suggest that reliable projections of air temperature and total snowfall may not be sufficient to understand permafrost degradation.

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Impact of Lateral Flow on the Water Status of Polygon Centers

Multi-year field observations improve process representation in polygon hydrology models.

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Estimating Critical Permafrost Properties from Easily Observed Permafrost State Data

NGEE Arctic researchers use fusion of numerical models and data to estimate subsurface porosities of the polygonal tundra.

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Arctic Sedge Play an Important Role in the Carbon Balance of Tundra Ecosystems

Research shows how individual species can disproportionately impact ecosystem carbon balance.

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Ground-Based and UAV-Collected Snow Measurements Compared across a Watershed on the Seward Peninsula

Snow measurements collected with a UAV and ground-based data collection techniques show strong agreement.

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Iron and Iron-Bound Phosphate Accumulate in Soils of Polygonal Tundra

Geochemical and spectroscopic characterization of active-layer soil indicate near-surface accumulation of iron oxides that sequester the nutrient phosphate.

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ORNL’s Misha Krassovski Supports International MOSAiC Expedition

Seasoned by the NGEE Arctic project, scientist gets tapped for a new opportunity.

Misha Krassovski

NGEE Arctic Contributes to NOAA’s 2019 Arctic Report Card

NGEE Arctic contributed to the Arctic Report Card chapter on ’Tundra Greenness’ including changes in the cover of alder shrubs that impact local nutrient cycling.

2019 NOAA Arctic Report Card

NGEE Arctic Continues to Have a Strong Presence at the American Geophysical Union (AGU) Meetings

Numerous posters, oral, and organized sessions submitted to AGU continue to highlight science and science leadership by members of the NGEE Arctic project.

2019 AGU

Cover of the NGEE Arctic AGU abstract booklet.