Download or read book Analysis of Extratropical Transition of Cyclones in the North Atlantic Ocean Using Geostationary Satellite Imagery written by Amy Rebecca Wood and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical cyclones in the Atlantic basin often undergo a process called extratropical transition (ET) and transform from warm-core to cold-core systems while retaining strong winds, heavy rainfall, and large ocean waves. Infrared satellite imagery from channels 2 and 4 of the Geostationary Operational Environmental Satellite (GOES) were used to examine key structural changes, synoptic interactions, and loss of deep centered convection in order to determine onset and completion of ET. The primary indicator for ET onset in 75% of cases was found to be a persistent increase in storm asymmetry along with the appearance of warm frontogenesis in its northern region. Cold frontogenesis in the southern portion of the storm was the secondary indicator for declaring onset of ET. Completion of ET was marked by the loss of centered deep convection for all cases. The average ET transition time was 18 hours for 60% of the cases.
Download or read book Extratropical Transition of Western North Pacific Tropical Cyclones written by Peter M. Klein and published by . This book was released on 1997-09-01 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extratropical transition (ET) of a tropical cyclone (TC) often results in a mid-latitude storm that threatens maritime and coastal interests. Cases of ET between 1 July through 31 October during 1994-1996 are reviewed using Navy Operational Global Atmospheric Prediction System (NOGAPS) analyses and hourly geostationary satellite imagery. Current conceptual models are found to be inadequate to explain the physical processes in ET. ET is redefined to have two stages: transformation, where the TC is transformed from a warm-core vortex into a baroclinic, cold-core extratropical cyclone, and re- intensification, where the transformed TC either deepens or dissipates, depending on the existence of upper4ropospheric support for extratropical cyclogenesis. ET is further defined in terms of two characteristic mid-latitude synoptic patterns: meridional, in which the cyclones have meridional tracks and tend to re-intensify less vigorously than zonal, which have zonal tracks and may deepen explosively. Review of NOGAPS 5OO-mb anomaly correlation scores in 1996 demonstrated that ET may be associated with significant NOGAPS errors. Sea-level pressure forecasts during ET events involving a merger tend to be too deep. In ET cases of rapidly deepening storms, NOGAPS tends to overforecast their intensity during transformation, and then underforecast during re- intensification. Rules of thumb are provided to assist forecasters in improving predictions of the track and intensity of storms undergoing ET.
Download or read book Systematic and Integrated Approach to Tropical Cyclone Track Forecasting in the North Atlantic written by Christopher S. T. Kent and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Systematic Approach for tropical cyclone track forecasting was introduced in 1994 by Carr and Elsberry to help forecasters at the Joint Typhoon Warning Center in Guam. The author was trained in the Systematic Approach as part of a reproducibility test for western Pacific cyclones as described in Chapter II. This study is the application of the meteorological framework of Carr and Elsberry to the North Atlantic. All North Atlantic tropical cyclones from 1990-1994 are examined using 500 mb Navy Operational Global Atmospheric Prediction System streamline and isotach analyses, geostationary satellite imagery, and the tropical cyclone best track information. Application of the Systematic Approach to the North Atlantic requires three modifications in the Environment Structure and TC- Environment transformation mechanisms: (i) A Low Synoptic Pattern is defined; (ii) a variation on the North-oriented Pattern is added; and (iii) a Weak Westerlies Synoptic Region is defined in the Standard Pattern. Subtropical Ridge Modification is found to be the most important transformation mechanism. A preliminary climatology of Synoptic Patterns, Regions, Pattern/Regions, and transitions is developed. While the Standard Pattern is the most common, it is surprising that the Weakened Ridge Region is so prevalent. Storm tracks in each Pattern/Region combination reveal a characteristic track motion for each Pattern/Region.
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 Systematic and Integrated Approach to Tropical Cyclone Track Forecasting in the North Atlantic written by Christopher S. T. Kent and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Systematic Approach for tropical cyclone track forecasting was introduced in 1994 by Carr and Elsberry to help forecasters at the Joint Typhoon Warning Center in Guam. The author was trained in the Systematic Approach as part of a reproducibility test for western Pacific cyclones as described in Chapter II. This study is the application of the meteorological framework of Carr and Elsberry to the North Atlantic. All North Atlantic tropical cyclones from 1990-1994 are examined using 500 mb Navy Operational Global Atmospheric Prediction System streamline and isotach analyses, geostationary satellite imagery, and the tropical cyclone best track information. Application of the Systematic Approach to the North Atlantic requires three modifications in the Environment Structure and TC- Environment transformation mechanisms: (i) A Low Synoptic Pattern is defined; (ii) a variation on the North-oriented Pattern is added; and (iii) a Weak Westerlies Synoptic Region is defined in the Standard Pattern. Subtropical Ridge Modification is found to be the most important transformation mechanism. A preliminary climatology of Synoptic Patterns, Regions, Pattern/Regions, and transitions is developed. While the Standard Pattern is the most common, it is surprising that the Weakened Ridge Region is so prevalent. Storm tracks in each Pattern/Region combination reveal a characteristic track motion for each Pattern/Region.
Download or read book Tropical Cyclones of the North Atlantic Ocean 1851 2006 written by Colin McAdie and published by . This book was released on 2009 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extratropical Transitions in the North Atlantic with Special Reference to Hurricane Igor written by Athena Masson and published by . This book was released on 2013 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Cyclones of the North Atlantic Ocean written by George W. Cry and published by . This book was released on 1965 with total page 164 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 Comparative and Case Study Analyses of Tropical Transition Events in the Subtropical Atlantic written by Andrew L. Hulme and published by . This book was released on 2007 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Aspects of North Atlantic Basin Tropical Cyclones During the Weather Satellite Era 1960 2013 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tropical cyclone is described as a warm-core, nonfrontal, synoptic-scale system that originates over tropical or subtropical waters, having organized deep convection and closed surface wind circulation (counterclockwise in the Northern Hemisphere) about a well defined center. When its sustained wind speed equals 34-63 kt, it is called a tropical (or subtropical) storm and is given a name (i.e., alternating male and female names, beginning in 1979); when its sustained wind speed equals 64-95 kt, it is called a hurricane (at least in the Eastern Pacific and North Atlantic basin); and when its sustained wind speed equals 96 kt or higher, it is called an intense or major hurricane (i.e., categories 3-5 on the Saffir-Simpson Hurricane Wind Scale). Although tropical cyclones have been reported and described since the voyages of Columbus, a detailed record of their occurrences extends only from 1851 to the present, with the most reliable portion extending only from about 1945 to the present, owing to the use of near-continuous routine reconnaissance aircraft monitoring flights and the use of satellite imagery (beginning in 1960; see Davis). Even so, the record may still be incomplete, possibly missing at least one tropical cyclone per yearly hurricane season, especially prior to the use of continuous satellite monitoring. In fact, often an unnamed tropical cyclone is included in the year-end listing of events at the conclusion of the season, following post-season analysis (e.g., as happened in 2011 and 2013, each having one unnamed event). In this two-part Technical Publication (TP), statistical aspects of the North Atlantic basin tropical cyclones are examined for the interval 1960-2013, the weather satellite era. Part 1 examines some 25 parameters of tropical cyclones (e.g., frequencies, peak wind speed (PWS), accumulated cyclone energy (ACE), etc.), while part 2 examines the relationship of these parameters against specific climate-related factors. These studies are a
Download or read book The Extratropical Transition of North Atlantic Tropical Cyclones in a Changing Climate written by Chunyong Jung and published by . This book was released on 2020 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Cyclones of the North Atlantic Ocean 1871 1992 written by and published by . This book was released on 1993 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Tropical to Extratropical Cyclone Transition in the Western North Atlantic Ocean 1963 1996 written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Cyclones of the North Atlantic Ocean 1871 1980 written by and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatology of 24 hour North Atlantic Tropical Cyclone Movements written by George W. Cry and published by . This book was released on 1961 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Rivers written by F. Martin Ralph and published by Springer Nature. This book was released on 2020-07-10 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the standard reference based on roughly 20 years of research on atmospheric rivers, emphasizing progress made on key research and applications questions and remaining knowledge gaps. The book presents the history of atmospheric-rivers research, the current state of scientific knowledge, tools, and policy-relevant (science-informed) problems that lend themselves to real-world application of the research—and how the topic fits into larger national and global contexts. This book is written by a global team of authors who have conducted and published the majority of critical research on atmospheric rivers over the past years. The book is intended to benefit practitioners in the fields of meteorology, hydrology and related disciplines, including students as well as senior researchers.
