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The Statistics and Horizontal Structure of Anomalous Weather Regimes in the Community Climate Model
Publisher: American Meteorological Society
Abstract: The statistics, horizontal structure, and linear barotropic dynamics of anomalous weather regimes are evaluated in a 15-winter integration of the NCAR Community Climate Model (CCM2). Statistical and ensemble analyses of ...
Piecewise Tendency Diagnosis of Weather Regime Transitions
Publisher: American Meteorological Society
Abstract: Piecewise tendency diagnosis (PTD) is extended and employed to study the dynamics of weather regime transitions. Originally developed for adiabatic and inviscid quasigeostrophic flow on a beta plane, PTD partitions local ...
Multiwavelet Discontinuous Galerkin-Accelerated Exact Linear Part (ELP) Method for the Shallow-Water Equations on the Cubed Sphere
Publisher: American Meteorological Society
Abstract: In this paper a new approach is presented to increase the time-step size for an explicit discontinuous Galerkin numerical method. The attributes of this approach are demonstrated on standard tests for the shallow-water ...
Accuracy Analysis of a Spectral Element Atmospheric Model Using a Fully Implicit Solution Framework
Publisher: American Meteorological Society
Abstract: A fully implicit (FI) time integration method has been implemented into a spectral finite-element shallow-water equation model on a sphere, and it is compared to existing fully explicit leapfrog and semi-implicit methods ...
Linearity of Climate Response to Increases in Black Carbon Aerosols
Publisher: American Meteorological Society
Abstract: he impacts of absorbing aerosols on global climate are not completely understood. This paper presents the results of idealized experiments conducted with the Community Atmosphere Model, version 4 (CAM4), coupled to a slab ...
Interannual Tropospheric Aerosol Variability in the Late Twentieth Century and Its Impact on Tropical Atlantic and West African Climate by Direct and Semidirect Effects
Publisher: American Meteorological Society
Abstract: new high-resolution global tropospheric aerosol dataset with monthly resolution is generated using version 4 of the Community Atmosphere Model (CAM4) coupled to a bulk aerosol model and forced with recent estimates of ...
A Spectral Deferred Correction Method Applied to the Shallow Water Equations on a Sphere
Publisher: American Meteorological Society
Abstract: lthough significant gains have been made in achieving high-order spatial accuracy in global climate modeling, less attention has been given to the impact imposed by low-order temporal discretizations. For long-time ...