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Showing 1 to 12 of 12 for “"Rapid intensification"”.

  1. Study on the Intensity and Track Prediction of Typhoon Yagi (2024) Based on Ensemble Kalman Filter Assimilation of Satellite and Radar Data

    Hu, JieHelsingin yliopisto2026

    … still faces challenges, especially in simulating rapid intensification. This study investigates the impact of assimilating satellite and radar data using the Ensemble Kalman Filter (EnKF) on the prediction of Typhoon Yagi (2024). Based on the Weather Research and Forecasting (WRF) model and the …

    helsinki Repository record

  2. Secondary Eyewall Formation as a Response to Evolving Tropical Cyclone Wind Structure

    Shivamoggi, RohiniMassachusetts Institute of Technology2022

    … cyclone's wind field in two contexts: (1) rapid intensification of the primary eyewall (Chapter 2) and (2) an expansion of the outer wind field (Chapter 3). The second chapter of the thesis demonstrates that in both an idealized hurricane intensity model (the Coupled Hurricane Intensity …

    mit Repository record

  3. An Ensemble Numerical Modeling Study of Alantic Basin Hurricane Intensification

    Brown, Bonnie Rachel2014

    Rapid intensification of tropical cyclones is an active area of research in the atmospheric sciences due to the difficulty of forecasting cyclone intensity and the unclear mechanism by which a hurricane my undergo explosive deepening. Ensemble numerical modeling studies of six tropical cyclones …

    washington Repository record

  4. Storm mergers and their role in tornado genesis during the 2011 Joplin storm

    Van Leer, KevinUniversity of Illinois at Urbana-Champaign2013

    … result in local conditions more favorable for rapid intensification of vertical vorticity at the surface than found in the surrounding environment. Following the work of Lemon (1976) and Lee et al. (2006), this study uses high-resolution WRF simulations to simulate and understand the …

    uiuc Repository record

  5. Diurnal analysis of intensity trends in Atlantic tropical cyclones

    Kowch, Roman SMassachusetts Institute of Technology2013

    … We obtain a mid to late morning maximum in rapid intensification (RI) events over warm water. No discernible trend exists for land-filling TCs, even after using the decay model of Kaplan and DeMaria (1995) to find diurnal departures from mean decay rates. We also calculate theoretical TC …

    mit Repository record

  6. Atlantic tropical cyclone formation: Pre-genesis evolution of tropical easterly waves and impacts of the middle to upper tropospheric dry air

    Hankes, IsaacUniversity of Illinois at Urbana-Champaign2014

    … about one day prior to genesis, along with the rapid intensification of vorticity. The composites derived from the ERA-Interim reanalysis reveal higher specific humidity and equivalent potential temperature near the center of the wave critical layer, especially in the middle troposphere within …

    uiuc Repository record

  7. Convective structure and its evolution in tropical cyclones as observed by passive microwave sensors in relation to intensity change

    Harnos, DanielUniversity of Illinois at Urbana-Champaign2011

    … a glimpse into tropical cyclone development and intensification over systems’ life cycles. In particular, passive microwave observations have the potential to depict crucial precursors of rapid intensification (RI; defined as a wind increase of 30 kt/24 hr). A dataset with a common resolution of …

    uiuc Repository record

  8. The role of inner-core and boundary layer dynamics on tropical cyclone structure and intensification

    Slocum, Christopher J., author, Schubert, Wayne H., advisor, DeMaria, Mark, advisor, Schumacher, Russ S., committee member, Randall, David A., committee member, Kirby, Michael, committee member, Fiorino, Michael, committee memberColorado State University. Libraries2018

    … dynamical processes involved with the incipient, rapidly intensifying, and eyewall replacement stages. A simplified, axisymmetric, one-layer, analytical model of tropical cyclone intensification is developed. Rather than formulating the model with the gradient balance approximation, the model uses …

    colostate Repository record

  9. Analysis of North Atlantic Tropical Cyclone Intensify Change Using Data Mining

    Tang, Jiang2010

    gmu

  10. Uncertainty Quantification in Earth System Models Using Polynomial Chaos Expansions

    Li, Guotu2017

    … simulation time span. Statistical analysis of rapid intensification (RI) process suggests that storms with enhanced initial intensity and counter-clockwise rotation perturbations are more likely to undergo a RI process. In addition, the RI process seems mostly sensitive to the mean wind …

    duke Repository record

  11. Characterization of the role of precipitation in tropical cyclone intensification

    Harnos, DanielUniversity of Illinois at Urbana-Champaign2015

    … meteorology community. A host of widely varying intensification paradigms have been put forth in recent decades associated with various dynamic or thermodynamic mechanisms. The one constant across these mechanisms is the role of the secondary circulation in terms of intensifying the vortex …

    uiuc Repository record

  12. Upper ocean variability and tropical cyclones in the South West Indian Ocean

    Mawren, DaneejaDepartment of Oceanography2018

    … cyclones are investigated. It is shown that rapid cyclone intensification is influenced by large Tdy values, thick barrier layers and the presence of anticyclonic eddies. Both BLT and Tdy fields are modulated by the westward propagation of Rossby waves, which are often associated with ENSO. …

    cape-town Repository record