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Full-Text Articles in Meteorology
A Numerical Investigation Of Tornado Production And Intensification In Tropical Cyclones, Marco Paredes
A Numerical Investigation Of Tornado Production And Intensification In Tropical Cyclones, Marco Paredes
FIU Electronic Theses and Dissertations
The environmental conditions required for tornado formation and development in tropical cyclones (TCs) and the mechanisms underlying the intensification of TC tornadoes remain poorly understood. Previous research has suggested that low and mid-level dry air intrusion in TCs may enhance convective instability and influence the production of tornadoes. However, observations have their limitations in answering some of the key questions regarding the relationship among thermodynamic instability, dry air, and TC tornado genesis, development, and dissipation. In this study, a multiple nested Weather Research and Forecasting (WRF) model in a hindcasting mode is used to simulate Hurricane Ivan (2004) by resolving …
Microphysical-Dynamical Interaction In Tropical Cyclone Intensification, Zongyao Yang
Microphysical-Dynamical Interaction In Tropical Cyclone Intensification, Zongyao Yang
FIU Electronic Theses and Dissertations
Producing timely and accurate tropical cyclone (TC) intensity forecasts remains one of the most difficult challenges facing meteorologists today. The state-of-the-art three-dimensional (3D) full physics operational models, in particular, have problems in simulating rapid intensification (RI), a situation where a TC intensifies dramatically in a short period of time. For example, Hurricanes Patricia (2015) and Maria (2017) increased their maximum sustained winds by 90 knots and 70 knots within 24 hours, respectively. The major objectives of this dissertation are to (a) explore the underlying reasons why the Hurricane Weather Research and Forecasting (HWRF) system, one of the operational models used …