Intermediate Model Overcomes Computational Costs of Simulating Thermal-Hydrology for Polygonal Landscapes

September 1st, 2017
The Science: 

Develop an intermediate-scale modeling approach to help bridge the gap between field and laboratory observations and the scale of a regional or global model grid cell.

The Impact: 

Leveraged fine-scale modeling tools and replaced a computationally difficult three-dimensional system with a novel multiscale model structure. Approach was shown to accurately approximates the fully-resolved solution, but at significantly less computational cost.

Summary: 

Enables permafrost dynamics including thaw-induced subsidence to be applied across the Arctic, thus improving representations of permafrost dynamics in evolving landscapes. Capabilities are being used to develop improved parameterizations and computational approaches for use in Earth system models.