Download or read book The Role of Asymmetric Structure in Tropical Cyclone Intensity Change written by Ho Yin Kwok and published by . This book was released on 2005 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical cyclone intensity and structure changes Theories observations numerical modeling and forecasting written by Eric Hendricks and published by Frontiers Media SA. This book was released on 2023-09-29 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inner Core Asymmetric Structures and Tropical Cyclone Intensity written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic reproduction.
Download or read book Global Perspectives On Tropical Cyclones From Science To Mitigation written by Johnny C L Chan and published by World Scientific. This book was released on 2010-04-30 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a completely rewritten, updated and expanded new edition of the original Global Perspectives on Tropical Cyclones published in 1995. It presents a comprehensive review of the state of science and forecasting of tropical cyclones together with the application of this science to disaster mitigation, hence the tag: From Science to Mitigation.Since the previous volume, enormous progress in understanding tropical cyclones has been achieved. These advances range from the theoretical through to ever more sophisticated computer modeling, all underpinned by a vast and growing range of observations from airborne, space and ocean observation platforms. The growth in observational capability is reflected by the inclusion of three new chapters on this topic. The chapter on the effects of climate change on tropical cyclone activity is also new, and appropriate given the recent intense debate on this issue. The advances in the understanding of tropical cyclones which have led to significant improvements in forecasting track, intensity, rainfall and storm surge, are reviewed in detail over three chapters. For the first time, a chapter on seasonal prediction is included. The book concludes with an important chapter on disaster mitigation, which is timely given the enormous loss of life in recent tropical cyclone disasters.World Scientific Series on Asia-Pacific Weather and Climate is indexed in SCOPUS.
Download or read book The Structural Changes of Tropical Cyclones Upon Interaction with Vertical Wind Shear written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourth Convection and Moisture Experiment (CAMEX-4) provided a unique opportunity to observe the distributions and document the roles of important atmospheric factors that impact the development of the core asymmetries and core structural changes of tropical cyclones embedded in vertical wind shear. The state-of-the-art instruments flown on the NASA DC-8 and ER-2, in addition to those on the NOAA aircraft, provided a unique set of observations that documented the core structure throughout the depth of the tropical cyclone. These data have been used to conduct a combined observational and modeling study using a state-of-the-art, high- resolution mesoscale model to examine the role of the environmental vertical wind shear in producing tropical cyclone core asymmetries, and the effects on the structure and intensity of tropical cyclones.The scientific objectives of this study were to obtain in situ measurements that would allow documentation of the physical mechanisms that influence the development of the asymmetric convection and its effect on the core structure of the tropical cyclone. Ritchie, Elizabeth A. Goddard Space Flight Center
Download or read book Climatological Summary written by United States. Weather Bureau and published by . This book was released on 1957 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Cyclone Intensity Analysis Using Satellite Data written by Vernon F. Dvorak and published by . This book was released on 1984 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Contribution of Symmetrization to the Intensification of Tropical Cyclones written by Henry A. Miller and published by . This book was released on 2001-12-01 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Operational ability to forecast tropical cyclone motion is much better than the ability to forecast intensity change. Several recent works have studied the mechanisms that bring about the symmetrization of various types of asymmetries in tropical cyclones. This study was conducted to add to that knowledge by examining the transfers of kinetic energy between scales and how those energy transfers alter the wind structure of the cyclone. Adding to the understanding of how this process can alter winds is a step toward increasing ability to forecast these changes. A non-divergent barotropic spectral model was used to integrate annular bands of enhanced potential vorticity, simulating hurricane eyes, with varying degrees of offset from the center of the vortex. Offset monopoles of vorticity, simulating asymmetric convection in tropical storms, were also integrated. As discovered by previous researchers, these unstable eyes broke down into a series of mesovortices, which merged and eventually relaxed to monopolar or tripolar final states. The offset monopoles formed spiral bands and became symmetric as well. Kinetic energy was transferred from the mean flow to the asymmetries as mesovortices formed and then transferred back to the mean flow as symmetrization occurred. These energy transfers occurred very quickly. As energy was transferred from asymmetry to mean flow, the azimuthally averaged wind increased in a band of about 70 km from the center of the vortex, even though the maximum wind decreased, Azimuthally averaged wind in the monopole cases also increased, but the change was confined to a smaller radial band near the radius of maximum wind.
Download or read book Diagnosis of Tropical Cyclone Structure and Intensity Change written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long term goals of this project are to improve and refine understanding of the dynamics of tropical cyclone structure and intensity change, with emphasis on the role of environmental dynamical effects on the intensity change process. This project builds upon the experience of the principal investigator in the study of extratropical cyclone dynamics in maritime regions during the past decade, and the recognition that extratropical maritime cyclones bear similarities to their tropical counterparts. Accordingly, a guiding theme of this research effort is to apply and extend well established dynamical perspectives on extratropical maritime cyclogenesis and cyclone life cycles to the tropics. The long term goals of this project have been addressed through diagnostic and modeling investigations of: (1) the origin and evolution of tropopause based precursor disturbances that culminate in rapid maritime cyclogenesis over the western North Atlantic Ocean; (2) the roles of trough interactions in tropical cyclone intensity change with a view toward determining the factors that distinguish between cyclogenetic and cyclolytic trough interactions; (3) the roles of environmental dynamical effects in tropical cyclone structure and intensity change; and (4) the kinematics of vorticity asymmetries associated with nondivergent barotropic vortices on a beta plane.
Download or read book Climatological Atlas of the World Ocean written by Sydney Levitus and published by . This book was released on 1982 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Perspectives on Tropical Cyclones written by Johnny C. L. Chan and published by World Scientific. This book was released on 2010 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pt. I. Theory of tropical cyclones. ch. 1. Tropical cyclone structure and dynamics / Jeffrey D. Kepert. ch. 2. Tropical cyclone formation / Kevin J. Tory and William M. Frank. ch. 3. Air-sea interactions in tropical cyclones / Lynn K. Shay. ch. 4. Movement of tropical cyclones / Johnny C.L. Chan. ch. 5. The extratropical transition of tropical cyclones : structural characteristics, downstream impacts, and forecast challenges / Patrick A. Harr -- pt. II. Observations of tropical cyclones. ch. 6. Observing and analyzing the near-surface wind field in tropical cyclones / Mark D. Powell. ch. 7. Satellite observations of tropical cyclones / Christopher Velden and Jeffrey Hawkins. ch. 8. Aircraft observations of tropical cyclones / Sim D. Aberson [und weitere] -- pt. III. Climate variations of tropical cyclone activity. ch. 9. Tropical cyclones and climate change : a review / Thomas Knutson, Chris Landsea and Kerry Emanuel -- pt. IV. Forecasting of tropical cyclones. ch. 10. Track and structure forecasts of tropical cyclones / Julian Heming and Jim Goerss. ch. 11. The influence of natural climate variability on tropical cyclones, and seasonal forecasts of tropical cyclone activity / Suzana J. Camargo [und weitere] -- pt. V. Hydrological aspects of tropical cyclones. ch. 12. Storm surge modeling and applications in coastal areas / Shishir K. Dube [und weitere] -- pt. VI. Societal impacts of tropical cyclones. ch. 13. Disaster mitigation and societal impacts / David King, Jim Davidson and Linda Anderson-Berry
Download or read book The Ocean and Cryosphere in a Changing Climate written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2022-04-30 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.
Download or read book On the Origin of Asymmetric Dynamical Processes and Their Relation to the Structure and Intensity Change of Hurricanes a Diagnostic Study written by Konstantinos Menelaou and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "To a first approximation hurricanes can be considered as axisymmetric vor- tices. However, asymmetries often accompany the symmetric circulation. Spiral rainbands, elliptical eyewalls, polygonal eyewalls, secondary eyewalls, mesovortices, and deep rotating convective clouds are examples of such asym- metric structures. The contribution of these asymmetries to the intensity and structural changes of hurricanes are not well understood.In this thesis, a suite of numerical models (both two dimensional [2D] and three dimensional [3D]) along with a series of diagnostic tools (Empirical Normal Mode [ENM] method, linear eigenmode analysis, wave activities con- servations laws, Eliassen-Palm [EP] flux calculations, and eddy kinetic energy budget calculations), are used to study the underlying dynamics associated with: the lifetime of elliptical eyewalls (Chapter 2), the genesis of secondary eyewalls (Chapter 2,3), the origin of polygonal eyewalls and mesovortices and their contribution to the rapid intensification process (Chapter 4), and finally the role of asymmetric convective bursts to the intensification of developing hurricanes (Chapter 5). In Chapter 2, it is shown that the evolution and the lifetime of a 2D el- liptical eyewall may be controlled by the inviscid damping of sheared vortex Rossby waves (VRWs) or the decay of an excited quasimode. In the context of 2D vortex flows, it is also shown that secondary rings of enhanced vorticity (secondary eyewalls) can form by the radiation of VRWs that result from the release of barotropic instability, and the process of wave-mean flow in- teractions. In Chapter 3, the importance of VRWs to the secondary eyewall genesis is verified in a successful numerical simulation of hurricane Wilma (2005) that developed a secondary eyewall. In Chapter 4, an analysis of the simulated Wilma during the rapid intensification stage is performed to show that the observed polygonal eyewall in Wilma is the result of counterpropa- gating unstable VRWs. The analysis also indicates that the polygonal eyewall and mesovortices can assist in the rapid intensification process. Finally, in Chapter 5 it is shown that the response of a weak vortex to asymmetric con- vective bursts is dominated by the excitation of damped sheared VRWs that act to accelerate the symmetric flow through the radial transport of angular momentum." --
Download or read book Uncertainties and Limitations in Simulating Tropical Cyclones written by Asuka Suzuki-Parker and published by Springer Science & Business Media. This book was released on 2012-01-05 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis work was in two major parts: development and testing of a new approach to detecting and tracking tropical cyclones in climate models; and application of an extreme value statistical approach to enable assessment of changes in weather extremes from climate models. The tracking algorithm applied a creative phase-space approach to differentiate between modeled tropical cyclones and their mid-latitude cousins. A feature here was the careful attention to sensitivity to choice of selection parameters, which is considerable. The major finding was that the changes over time were relatively insensitive to these details. This new approach will improve and add confidence to future assessments of climate impacts on hurricanes. The extremes approach utilized the Generalized Pareto Distribution (one of the standard approaches to statistics of extremes) applied to present and future hurricane distributions as modeled by a regional climate model, then applied the changes to current observations to extract the changes in the extremes. Since climate models cannot resolve these extremes directly, this provides an excellent method of determining weather extremes in general. This is of considerable societal importance as we are most vulnerable to such extremes and knowledge of their changes enables improved planning and adaptation strategies.
Download or read book Influence of Upper tropospheric Troughs on Tropical Cyclone Intensity Change and Structure written by Casey M. Peirano and published by . This book was released on 2019 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hurricane written by Robert Simpson and published by American Geophysical Union. This book was released on 2003 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based upon presentations at an historical symposium on hurricanes convened by the American Geophysical Union at its Fall meeting in San Francisco, December 16, 2000".
Download or read book On the Role of the Upper Ocean in Tropical Cyclone Intensity Change written by Michelle Mainelli Huber and published by . This book was released on 2000 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
