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RISArbitrary-Order Conservative and Consistent Remapping and a Theory of Linear Maps: Part I
Publisher: American Meteorological Society
Abstract: he design of accurate, conservative, consistent, and monotone operators for remapping scalar fields between computational grids on the sphere has been a persistent issue for global modeling groups. This problem is especially ...
A Computational Efficient Method to Assess the Sensitivity of Finite-Element Models: An Illustration With the Hemipelvis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Assessing the sensitivity of a finite-element (FE) model to uncertainties in geometric parameters and material properties is a fundamental step in understanding the reliability of model predictions. However, the computational ...
The Spectral Element Atmosphere Model (SEAM): High-Resolution Parallel Computation and Localized Resolution of Regional Dynamics
Publisher: American Meteorological Society
Abstract: Fast, accurate computation of geophysical fluid dynamics is often very challenging. This is due to the complexity of the PDEs themselves and their initial and boundary conditions. There are several practical advantages to ...
Using Variable-Resolution Meshes to Model Tropical Cyclones in the Community Atmosphere Model
Publisher: American Meteorological Society
Abstract: statically nested, variable-mesh option has recently been introduced into the Community Atmosphere Model?s (CAM's) Spectral Element (SE) dynamical core that has become the default in CAM version 5.3. This paper presents a ...
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 ...
The Dependence of ITCZ Structure on Model Resolution and Dynamical Core in Aquaplanet Simulations
Publisher: American Meteorological Society
Abstract: quaplanet simulations using the Community Atmosphere Model, version 4 (CAM4), with the Model for Prediction Across Scales?Atmosphere (MPAS-A) and High-Order Method Modeling Environment (HOMME) dynamical cores and using ...
A Spectral Element Version of CAM2
Publisher: American Meteorological Society
Abstract: The authors describe a recent development and some applications of a spectral element dynamical core. The improvements and development include the following: (i) the code was converted from FORTRAN 77 to FORTRAN 90; (ii) ...
Atmospheric Moisture Budget and Spatial Resolution Dependence of Precipitation Extremes in Aquaplanet Simulations
Publisher: American Meteorological Society
Abstract: his study investigates the moisture budgets and resolution dependency of precipitation extremes in an aquaplanet framework based on the Community Atmosphere Model, version 4 (CAM4). Moisture budgets from simulations using ...
Biomechanical Robustness of a Contemporary Cementless Stem to Surgical Variation in Stem Size and Position
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Successful designs of total hip replacement (THR) need to be robust to surgical variation in sizing and positioning of the femoral stem. This study presents an automated method for comprehensive evaluation of the potential ...
Effects of Localized Grid Refinement on the General Circulation and Climatology in the Community Atmosphere Model
Publisher: American Meteorological Society
Abstract: sing the spectral element (SE) dynamical core within the National Center for Atmospheric Research?Department of Energy Community Atmosphere Model (CAM), a regionally refined nest at 0.25° (~28 km) horizontal resolution ...