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The Effect of Current-Induced Stress Perturbation On Baroclinic Rossby Waves in a Continuously Stratified Model
Publisher: American Meteorological Society
Abstract: A shear stress at the air?sea interface is induced by the presence of surface currents. In the case of isotropic wind, a quadratic stress law leads to a stress curl proportional to and opposing the surface current vorticity. ...
Predicting Atlantic Tropical Cyclone Seasonal Activity in April
Publisher: American Meteorological Society
Abstract: Seasonal hurricane forecasts are continuing to develop skill, although they are still subject to large uncertainties. This study uses a new methodology of cross-correlating variables against empirical orthogonal functions ...
On the Linear Parameterization of Drag Coefficient over Sea Surface
Publisher: American Meteorological Society
Abstract: Combining the logarithmic law with the Charnock relation yields a drag coefficient that is a function of wind speed with the Charnock coefficient as a parameter. It is found that the function is nearly linear within the ...
A Scale-Selective Data Assimilation Approach to Improving Tropical Cyclone Track and Intensity Forecasts in a Limited-Area Model: A Case Study of Hurricane Felix (2007)
Publisher: American Meteorological Society
Abstract: ccurately forecasting a tropical cyclone?s (TC) track and intensity remains one of the top priorities in weather forecasting. A dynamical downscaling approach based on the scale-selective data assimilation (SSDA) method ...
A Numerical Study of Stratified Airflow over Mesoscale Heat Sources with Application to Carolina Coastal Frontogenesis
Publisher: American Meteorological Society
Abstract: This paper presents the results from a numerical investigation of the responses of stratified airflow to prescribed near-surface mesoscale axisymmetric (circular) and elongated (elliptical) heat sources under uniform basic ...
Adjusting the Wind Stress Drag Coefficient in Storm Surge Forecasting Using an Adjoint Technique
Publisher: American Meteorological Society
Abstract: three-dimensional ocean model and its adjoint model are used to adjust the drag coefficient in the calculation of wind stress for storm surge forecasting. A number of identical twin experiments (ITEs) with different error ...
Effect of Bathymetric Curvature on Gulf Stream Instability in the Vicinity of the Charleston Bump
Publisher: American Meteorological Society
Abstract: The effect of the isobathic curvature on the development and evolution of Gulf Stream frontal waves (meanders and eddies) in the vicinity of the Charleston Bump (a topographic rise on the upper slope off Charleston, South ...
Customization of RegCM3 Regional Climate Model for Eastern Africa and a Tropical Indian Ocean Domain
Publisher: American Meteorological Society
Abstract: Rainfall is a driving factor of climate in the tropics and needs to be properly represented within a climate model. This study customizes the precipitation processes over the tropical regions of eastern Africa and the ...
Application of Scale-Selective Data Assimilation to Regional Climate Modeling and Prediction
Publisher: American Meteorological Society
Abstract: A method referred to as scale-selective data assimilation (SSDA) is designed to inject the large-scale components of the atmospheric circulation from a global model into a regional model to improve regional climate simulations ...
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