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QTCMs

QTCM - Quasi-equilibrium Tropical Circulation Model

QTCM1     Current Release     Contact     Initial QTCM Publications     Sample figures

QTCM referenced papers:   Within csi group.   Others.

Introduction

QTCMs are models of intermediate complexity suitable for the modeling of tropical climate and its variability. It occupies a niche among climate models between complex general circulation models and simple models.

The primitive-equation-based dynamical framework is constructed using analytical solutions from the quasi-equilibrium convective parameterization as the first basis function in a Galerkin representation of vertical structure. A uniqueness of the QTCM is its balanced treatment of dynamics and physical parameterizations. It includes a linearized longwave radiation scheme, simple cloud prediction and shortwave radiation schemes, and the Simple-Land (SLand) land model.

QTCM1 (version 2.2):
Anomalous precipitation from a simulation forced by observed sea surface temperatures 1982-1998.

QTCM1

QTCM1 includes a single deep convective mode in the vertical thermodynamic structure and two components (baroclinic and barotropic) in the vertical structure of velocity. It is computationally light (5min on a Sun Ultra2 at 5.625x3.75 resolution and 1.5 minutes on a Pentium-4/Linux workstation) and easy to diagnose.

QTCM1 Version 2.3 - current-release (August 2002)

Unofficial, non-released QTCM versions

Archive of released versions

Archive of sample figures

Contact:

Initial QTCM Publications