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RISThe Impact of Assimilating SSM/I and QuikSCAT Satellite Winds on Hurricane Isidore Simulations
Publisher: American Meteorological Society
Abstract: Three observational datasets of Hurricane Isidore (in 2002) were analyzed and compared: the Special Sensor Microwave Imager (SSM/I), the Quick Scatterometer (QuikSCAT) winds, and dropsonde winds. SSM/I and QuikSCAT winds ...
Application of a Signal Technique to the Source–Receptor Relationship in Three-Dimensional Tracer Simulations
Publisher: American Meteorological Society
Abstract: Identifying pollutant sources that contribute to downstream locations is important for policy making and air-quality control. In this study, a computationally economic signal technique was implemented into a three-dimensional ...
An Explicit One-Dimensional Time-Dependent Tilting Cloud Model
Publisher: American Meteorological Society
Abstract: An explicit one-dimensional time-dependent tilting cloud model has been developed for use in cumulus parameterizations. The tilting axis is not necessarily orthogonal to the (r, ?) plane, making the horizontal axisymmetric ...
Application of the Multigrid Method and a Flexible Hybrid Coordinate in a Nonhydrostatic Model
Publisher: American Meteorological Society
Abstract: A fully compressible, three-dimensional, nonhydrostatic model is developed using a semi-implicit scheme to avoid an extremely small time step. As a result of applying the implicit scheme to high-frequency waves, an elliptic ...
Effects of Moist Froude Number and CAPE on a Conditionally Unstable Flow over a Mesoscale Mountain Ridge
Publisher: American Meteorological Society
Abstract: In this study, idealized simulations are performed for a conditionally unstable flow over a two-dimensional mountain ridge in order to investigate the propagation and types of cloud precipitation systems controlled by the ...
Subcritical Destabilization of African Easterly Waves by Saharan Mineral Dust
Publisher: American Meteorological Society
Abstract: theoretical framework is presented that exposes the radiative?dynamical relationships that govern the subcritical destabilization of African easterly waves (AEWs) by Saharan mineral dust (SMD) aerosols. The framework is ...
Saharan Dust and the Nonlinear Evolution of the African Easterly Jet–African Easterly Wave System
Publisher: American Meteorological Society
Abstract: he direct radiative effects of Saharan mineral dust (SMD) aerosols on the nonlinear evolution of the African easterly jet?African easterly wave (AEJ?AEW) system is examined using the Weather Research and Forecasting Model ...
Orographic Influence on Basic Flow and Cyclone Circulation and Their Impacts on Track Deflection of an Idealized Tropical Cyclone
Publisher: American Meteorological Society
Abstract: series of idealized numerical experiments and vorticity budget analyses is performed to examine several mechanisms proposed in previous studies to help understand the orographic influence on track deflection over a mesoscale ...
Dynamics of the Shallow Meridional Circulation around Intertropical Convergence Zones
Publisher: American Meteorological Society
Abstract: The generally accepted view of the meridional circulation in the tropical east Pacific is that of a single deep overturning cell driven by deep convective heating in the intertropical convergence zone (ITCZ), similar to ...
Effects of Saharan Dust on the Linear Dynamics of African Easterly Waves
Publisher: American Meteorological Society
Abstract: he direct radiative effects of Saharan mineral dust aerosols on the linear dynamics of African easterly waves (AEWs) are examined analytically and numerically. The analytical analysis combines the thermodynamic equation ...