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RISA General Framework for Convective Trigger Functions
Publisher: American Meteorological Society
Abstract: A general framework for the trigger function used in convective parameterization routines in mesoscale models is proposed. The framework is based on the diagnosis of the accessibility of potential buoyant energy. Specifically, ...
Surface Cyclogenesis from Convectively Driven Amplification of Midlevel Mesoscale Convective Vortices
Publisher: American Meteorological Society
Abstract: Mesoscale convective vortices (MCVs) are midtropospheric warm-core cyclonic circulations that often develop in the stratiform region of mesoscale convective systems. Typically, divergent, anticyclonically circulating, ...
Effects of Parameterized Boundary Layer Structure on Hurricane Rapid Intensification in Shear
Publisher: American Meteorological Society
Abstract: This study investigates the role of the parameterized boundary layer structure in hurricane intensity change using two retrospective HWRF forecasts of Hurricane Earl (2010) in which the vertical eddy diffusivity Km was ...
Analyzing Simulated Convective Bursts in Two Atlantic Hurricanes, Part I: Burst Formation and Development
Publisher: American Meteorological Society
Abstract: nderstanding the structure and evolution of the tropical cyclone (TC) inner core remains an elusive challenge in tropical meteorology, especially the role of transient asymmetric features such as localized strong updrafts ...
A Simple Technique for Using Radar Data in the Dynamic Initialization of a Mesoscale Model
Publisher: American Meteorological Society
Abstract: A simple technique for using radar reflectivity to improve model initialization is presented. Unlike previous techniques, the scheme described here does not infer rain rates and heating profiles from assumed relationships ...
Analyzing Simulated Convective Bursts in Two Atlantic Hurricanes, Part II: Intensity Change Due to Bursts
Publisher: American Meteorological Society
Abstract: his paper investigates convective burst (CB) evolution in Weather Research and Forecasting (WRF) simulations of two tropical cyclones (TCs), focusing on the relationship between CBs and TC intensity change. Analysis of ...
Multiscale Structure and Evolution of Hurricane Earl (2010) during Rapid Intensification
Publisher: American Meteorological Society
Abstract: he structure and evolution of Hurricane Earl (2010) during its rapid intensification as sampled by aircraft is studied here. Rapid intensification occurs in two stages. During the early stage, covering ~24 h, Earl was a ...
Reply to “Comments on ‘Multiscale Structure and Evolution of Hurricane Earl (2010) during Rapid Intensification’”
Publisher: American Meteorological Society
Impact of Parameterized Boundary Layer Structure on Tropical Cyclone Rapid Intensification Forecasts in HWRF
Publisher: American Meteorological Society
Abstract: his study evaluates the impact of the modification of the vertical eddy diffusivity (Km) in the boundary layer parameterization of the Hurricane Weather Research and Forecasting (HWRF) Model on forecasts of tropical cyclone ...
Thermodynamic and Kinematic Influences on Precipitation Symmetry in Sheared Tropical Cyclones: Bertha and Cristobal (2014)
Publisher: American Meteorological Society
Abstract: AbstractPrior studies have shown an association between symmetrically distributed precipitation and tropical cyclone (TC) intensification. Although environmental vertical wind shear typically forces an asymmetric precipitation ...