Multiscale – Multiscale Methods for Accurate, Efficient, and Scale-Aware Models of the Earth System

Multiscale is an integrated team of climate and computational scientists working to accelerate the development and integration of multiscale atmospheric and oceanic parameterizations into DOE's Accelerated Climate Model for Energy (ACME).

Research Areas

Atmospheric Processes

Reducing numerical errors and resolution-dependence of atmospheric physics

Numerical Fluid Dynamics

Numerical approaches to improving atmospheric dynamics for multiscale parameterizations

Ocean Development

Parameterizing ocean eddies with scale-aware ocean Mesoscale Eddy Parameterization (MEP)

VVUQ

Validation, verification and uncertainty quantification (VVUQ) methods are critical tools for the development of multiscale models.

Featured Publications

The important role of lightning in atmospheric chemistry

Lightning strikes and wildfires could increase by ~50% over this century causing significant change in the continent’s atmospheric chemistry.

Effect of mesh refinement in a climate model.

Using CAM version 5 (CAM5) physics significantly improves cloud scaling at different grid resolutions.

A strategy for atmospheric general circulation models

An experimentation strategy for investigating sensitivities in fast components of atmospheric general circulation models.

Physical SBM models used to reproduce observed convection

The spectral-bin microphysics (SBM) method reproduced observed convection intensity well and found that mass flux is very sensitive to different microphysical schemes for tropical convection.

Algorithmically solving shallow water equations in CAM-SE

Collaborative work with the SciDAC Institute FASTMath has delivered an algorithmically scalable preconditioner to solve shallow water equations within the CAM-SE.

Increased Lightning Strikes in this Century

Advancing Multi-scale Earth System Models (MSESMs)

Ocean Eddies: moving heat and capturing carbon

The Multiscale Science Team

Research Areas

Featured Publications