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RISA Forward-in-Time Anelastic Nonhydrostatic Model in a Terrain-Following Coordinate
Publisher: American Meteorological Society
Abstract: A three-dimensional (3D) forward-in-time anelastic nonhydrostatic model in a terrain-following coordinate is developed to investigate mesoscale circulations over topography. The anelastic nonhydrostatic model utilizes the ...
Semi-Lagrangian Advection Schemes and Eulerian WKL Algorithms
Publisher: American Meteorological Society
Abstract: Several advection experiments were conducted to test semi-Lagrangian schemes and Eulerian Warming-Kutler-Lomax (WKL) algorithms. The Eulerian WKL algorithms, as a special case of fourth-degree (order) Lagrange interpolation, ...
A Comparative Study of High-Order, Quasi-Conservative, Semi-Lagrangian, and Eulerian Advection Schemes
Publisher: American Meteorological Society
Abstract: Quasi-conservative high-order semi-Lagrangian advection schemes are compared with several positive-definite Eulerian schemes in flux form, including Bott?s scheme. In this study, the conventional equipartition method is ...
A Three-Dimensional Numerical Investigation of a Carolina Coastal Front and the Gulf Stream Rainband
Publisher: American Meteorological Society
Abstract: A three-dimensional mesoscale planetary boundary layer (PBL) numerical model is used to investigate mesoscale circulations over the Carolina coastal and Gulf Stream baroclinic zones. Idealized ambient onshore and offshore ...
Numerical Simulations of Cold Air Advection over the Appalachian Mountains and the Gulf Stream
Publisher: American Meteorological Society
Abstract: Cold air advection over the Gulf Stream off the Carolinas and the Appalachian Mountains is studied using idealized two-dimensional cases for the Genesis of Atlantic Lows Experiment (GALE) lop 2 conditions. An anelastic ...
A Comparative Study of Numerical Advection Schemes Featuring a One-Step Modified WKL Algorithm
Publisher: American Meteorological Society
Abstract: A fourth-order Crowley-type advection scheme based on the multistep Warming-Kutler-Lomax (WKL) scheme is proposed in this study. This scheme utilizes a free parameter to minimize dispersion and dissipation and can be used ...
Track Deflection of Typhoon Chanthu (2021) near Taiwan as Investigated Using a High-Resolution Global Model
Publisher: American Meteorological Society
Track Deflection of Typhoon Nesat (2017) as Realized by Multiresolution Simulations of a Global Model
Publisher: American Meteorological Society
Abstract: AbstractTyphoon Nesat (2017) headed west-northwestward toward Taiwan but took a relatively larger northward deflection about 300 km away and then a leftward deflection after landfall at northern Taiwan. A global model MPAS, ...
The Impact of GPS RO Data on the Prediction of Tropical Cyclogenesis Using a Nonlocal Observation Operator: An Initial Assessment
Publisher: American Meteorological Society
Abstract: In this study, the impact of global positioning system (GPS) radio occultation (RO) data on the prediction of the genesis of 10 tropical cyclones over the western North Pacific Ocean is assessed. With the use of a nonlocal ...
On the Upstream Track Deflection of Tropical Cyclones Past a Mountain Range: Idealized Experiments
Publisher: American Meteorological Society
Abstract: pstream track deflection of a propagating cyclonic vortex past an isolated mountain range is investigated by using idealized simulations with both boundary layer turbulent mixing and cloud effects. The westbound vortex ...