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Idealized Large-Eddy Simulations of a Tropical Cyclone–like Boundary Layer
Publisher: American Meteorological Society
Abstract: he tropical cyclone (TC) boundary layer (TCBL)?featuring extreme winds over a rough ocean?is difficult to study observationally. With increasing computational power, high-resolution large-eddy simulation (LES) has become ...
How Does the Eye Warm? Part II: Sensitivity to Vertical Wind Shear and a Trajectory Analysis
Publisher: American Meteorological Society
Abstract: n Part II of this study, idealized simulations of tropical cyclones are used to investigate the influence of vertical wind shear on the structure of warming and descent in the eye; results are compared with the no-shear ...
Effects of Moist Convection on Hurricane Predictability
Publisher: American Meteorological Society
Abstract: This study exemplifies inherent uncertainties in deterministic prediction of hurricane formation and intensity. Such uncertainties could ultimately limit the predictability of hurricanes at all time scales. In particular, ...
Intrinsic versus Practical Limits of Atmospheric Predictability and the Significance of the Butterfly Effect
Publisher: American Meteorological Society
Abstract: imits of intrinsic versus practical predictability are studied through examining multiscale error growth dynamics in idealized baroclinic waves with varying degrees of convective instabilities. In the dry experiment free ...
Review of the Ensemble Kalman Filter for Atmospheric Data Assimilation
Publisher: American Meteorological Society
Abstract: his paper reviews the development of the ensemble Kalman filter (EnKF) for atmospheric data assimilation. Particular attention is devoted to recent advances and current challenges. The distinguishing properties of three ...
Sensitivity of Tropical Cyclone Simulations to Parametric Uncertainties in Air–Sea Fluxes and Implications for Parameter Estimation
Publisher: American Meteorological Society
Abstract: ropical cyclones (TCs) are strongly influenced by fluxes of momentum and moist enthalpy across the air?sea interface. These fluxes cannot be resolved explicitly by current-generation numerical weather prediction models, ...
Numerical Simulations of a Gravity Wave Event over CCOPE. Part II: Waves Generated by an Orographic Density Current
Publisher: American Meteorological Society
Abstract: A mesoscale numerical model and detailed observations are used to investigate the generation and maintenance of a mesoscale gravity wave event observed in eastern Montana on 11 July 1981 during the Cooperative Convective ...
Coupling between Gravity Waves and Tropical Convection at Mesoscales
Publisher: American Meteorological Society
Abstract: n idealized cloud-system-resolving model simulation is used to examine the coupling between a tropical cloud population and the mesoscale gravity waves that it generates. Spectral analyses of the cloud and gravity wave ...
Impacts of Air–Sea Flux Parameterizations on the Intensity and Structure of Tropical Cyclones
Publisher: American Meteorological Society
Abstract: luxes of momentum and moist enthalpy across the air?sea interface are believed to be one of the most important factors in determining tropical cyclone intensity. Because these surface fluxes cannot be directly resolved by ...
Isentropic Analysis on the Intensification of Hurricane Edouard (2014)
Publisher: American Meteorological Society
Abstract: AbstractAn isentropic analysis technique is adopted in this study to investigate the intensification of Hurricane Edouard (2014) predicted by an experimental real-time convection-permitting hurricane analysis and forecast ...