The Arctic LTER uses models to:

1. examine theoretical constraints on biogeochemistry and community structure. Interactions of CDOM inputs, water residence time, and light exposure to determine DOC photo - degradation (% loss of the initial pool of CDOM, without replacement).
2. compare canopy function among arctic tundra types and link that analysis to eddy covariance data;
3. analyze effects of primary productivity on trophic structure;
4. analyze hydro-logical and biogeochemical connectivity on arctic hillslopes;
5. integrate ARC L TER results to assess responses to climate change;
6. extrapolate biogeochemical properties of ecosystems regionally;
7. predict fish bioenergetic responses to climate change at the individual and population levels , and
8. simulate recovery from disturbance.