Abstract
A closed total energy (TE) budget is of utmost importance in coupled climate system modeling; in particular, the dynamical core or physics-dynamics coupling should ideally not lead to spurious TE sources/sinks. To assess this in a global climate model, a detailed analysis of the spurious sources/sinks of TE in National Center for Atmospheric Research's Community Atmosphere Model (CAM) is given. This includes spurious sources/sinks associated with the parameterization suite, the dynamical core, TE definition discrepancies, and physics-dynamics coupling. The latter leads to a detailed discussion of the pros and cons of various physics-dynamics coupling methods commonly used in climate/weather modeling.
| Original language | English |
|---|---|
| Pages (from-to) | 1309-1328 |
| Number of pages | 20 |
| Journal | Journal of Advances in Modeling Earth Systems |
| Volume | 11 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2019 |
Keywords
- dynamical cores
- global modeling
- numerical methods
- physics-dynamics coupling
- total energy errors