A5103255926- Tropical and Extratropical Cyclones Research
- Meteorological Phenomena and Simulations
- Ocean Waves and Remote Sensing
- Climate variability and models
- Geological and Geophysical Studies
Florida International University
2013-2019
North Carolina State University
2010-2014
Abstract Idealized and real‐case simulations conducted using the Hurricane Weather Research Forecasting (HWRF) model demonstrate a “top‐down” pathway to secondary eyewall formation (SEF) for tropical cyclones (TCs). For of Rita (2005) Edouard (2014), comparison observations reveals timing overall characteristics simulated SEF appear realistic. An important control top‐down is amount radial‐height distribution hydrometeors at outer radii. Examination into hydrometeor particle fall speed that...
Abstract. While turbulence is commonly regarded as a flow feature pertaining to the planetary boundary layer (PBL), intense turbulent mixing generated by cloud processes also exists above PBL in eyewall and rainbands of tropical cyclone (TC). The in-cloud intimately involved development convective elements consists part asymmetric eddy forcing for evolution primary secondary circulations TC. In this study, we show that Hurricane Weather Research Forecasting (HWRF) model, one operational...
Abstract In this study, several analyses were conducted that aimed at improving sustained wind speed and gust forecasts for tropical cyclones (TCs) affecting coastal regions. An objective forecast analysis of recent TCs the mid-Atlantic region was first to set a benchmark improvement. Forecasts from National Digital Forecast Database compared observations surface in region. The suggests general overprediction speeds, especially areas affected by strongest winds. Currently, Weather Service...
Abstract The evolution of African easterly waves (AEWs) leading to tropical cyclones (TCs) in the Atlantic during 2000–08 is examined from isentropic potential vorticity (PV) and Lagrangian streamline perspectives. Tropical cyclone formation commonly preceded by axisymmetrization PV, scale contraction wave, a closed circulation within wave. In these cases, PV associated with synoptic-scale wave irreversibly deformed subsumed developing vortex. Less commonly, filamentation leads separation...
Abstract. The fundamental mechanism underlying tropical cyclone (TC) intensification may be understood from the conservation of absolute angular momentum, where primary circulation a TC is driven by torque acting on air parcels resulting asymmetric eddy processes, including turbulence. While turbulence commonly regarded as flow feature pertaining to planetary boundary layer (PBL), intense turbulent mixing generated cloud processes also exists above PBL in eyewall and rainbands. Unlike...