Progress & Accomplishments

Plant Traits Across an Arctic Landscape: Above versus Belowground

NGEE Arctic researchers are quantifying above and belowground variation in plant functional traits across environmental gradients to inform the representation of plant traits in terrestrial biosphere models.

Evapotranspiration across Plant Types and Geomorphological Units in Polygonal Arctic Tundra

A field research showed that evapotranspiration from mosses and open water was twice as high as that from lichens and bare ground, and that microtopographic variations in polygonal tundra explained most of this and other spatial variation

Controls on Fine-Scale Spatial and Temporal Variability of Plant Available Inorganic Nitrogen in a Polygonal Tundra Landscape

NGEE Arctic researchers documented strong relationship between soil moisture, inorganic N availability, and plant N content across the polygonal ground of the Barrow Environmental Observatory

Reduced Arctic Tundra Productivity Linked with Landform and Climate Change Interactions

Scientists working on the NGEE Arctic project provide evidence linking decadal patterns in arctic greening and browning with regional climate change and local permafrost-driven landscape heterogeneity, using newly developed decade time-scale remote

California’s Governor Jerry Brown Learns About Climate Change Science in Nome

NGEE Arctic scientists from the University of Alaska Fairbanks and Lawrence Berkeley National Lab gave an overland tour of the Seward Peninsula to California’s Governor Jerry Brown to share hands-on climate change research in the Arctic.

Metadata and NGEE Arctic search tool metrics

View metrics about the NGEE Arctic metadata records and data downloads.

PEcAn integration of dvm-dos-tem for uncertainty quantification and variance decomposition

We successfully integrated the Dynamic Vegetation, Dynamic Organic Soil, Terrestrial Ecosystem Model (DVM-DOS-TEM, University of Alaska Fairbanks) into the PEcAn framework to enable formal model uncertainty quantification (UQ), parameterization, and data-

Multi-sensor visible, spectral, and thermal Unmanned Aerial System (UAS) flights in Nome

We conducted our first NGEE-Arctic deployment of the multi-instrument Osprey heavy-lift octocopter at the three Seward Peninsula sites where we collected high-resolution visible imagery for structure from motion (SfM) 3-D plant and terrain surface heights

Soil warming decreases microbial functional diversity in the Arctic Tundra

Soil warming decreases microbial functional diversity in the Arctic Tundra

Trait-based modeling for the Arctic

Database survey of key traits for improved modeling of Arctic vegetation