Advancing the predictive power of Earth system models through understanding
of the structure and function of Arctic terrestrial ecosystems
Progress & Accomplishments
Geophysical monitoring shows that spatial heterogeneity in thermohydrological dynamics reshapes a transitional permafrost system
Geophysical monitoring shows that transitional permafrost systems evolve through complex infiltration pathways and energy fluxes, including lateral flow.
Simulating arctic plant functional types in the Energy Exascale Earth System Model Land Model
NGEE Arctic researchers have updated arctic plant functional types (PFTs) in the Energy Exascale Earth System Model (E3SM) Land Model (ELM) based on field measurements of biomass and species composition across Seward Peninsula plant communities.
Triose phosphate utilization limitation: An unnecessary complexity in terrestrial biosphere models
Model representation of the use of the end products of photosynthesis, triose phosphates, does not capture the independent response of triose phosphate utilization (TPU) to temperature, is based on uncertain assumptions.
Modeling permafrost across the Seward Penninsula, Alaska
Scientists at UAF developed a spatially distributed permafrost model for the Seward Peninsula, and then simulated present-day ground temperature dynamics and projected those into the future according to climate scenarios.