The NCAR Climate System Model Global Ocean Component*

Tropical Pacific Variability in the NCAR Climate System Model

A 300-yr simulation with the NCAR Climate System Model (CSM), version 1, captured only ;60% of the observed ENSO signal and exaggerated the interannual variability of SST in the western tropical Pacific. Here, a simulation with a new version of the CSM, which significantly improves the spatial and temporal patterns of tropical Pacific variability, is described. Maximum SST variability is shifte...

Parallel Community Climate Model 32 Ncar

This paper is a brief overview of a parallel version of the NCAR Community Climate Model, CCM2, implemented for MIMD massively parallel computers using a message-passing programming paradigm. The parallel implementation was developed on an Intel iPSC/860 with 128 processors and on the Intel Delta with 512 processors, and the initial target platform for the production version of the code is the ...

Tree approximation of the long wave radiation parameterization in the NCAR CAM global climate model

The computation of Global Climate Models (GCMs) presents significant numerical challenges. This paper presents new algorithms based on sparse occupancy trees for learning and emulating the longwave radiation parameterization in theNCAR CAMclimate model. This emulation occupies by far the most significant portion of the computational time in the implementation of the model. From the mathematical...

Description of the NCAR community climate model (CCM2)

Formulation of an ocean model for global climate simulations

This paper summarizes the formulation of the ocean component to the Geophysical Fluid Dynamics Laboratory’s (GFDL) climate model used for the 4th IPCC Assessment (AR4) of global climate change. In particular, it reviews the numerical schemes and physical parameterizations that make up an ocean climate model and how these schemes are pieced together for use in a state-of-the-art climate model. F...