Extratropical Storm Evolution from Tropical Cyclones in the Western North Pacific Ocean PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Extratropical Storm Evolution from Tropical Cyclones in the Western North Pacific Ocean PDF full book. Access full book title Extratropical Storm Evolution from Tropical Cyclones in the Western North Pacific Ocean by Samson Brand. Download full books in PDF and EPUB format.
Author: Samson Brand
Publisher:
ISBN:
Category : Cyclones
Languages : en
Pages : 20
Get Book Here
Book Description
This study examines 16 recurving tropical storms and typhoons that occurred in the western North Pacific Ocean in 1971, to determine the characteristics of the storms after they became extratropical. Many of the extratropical storms that evolved from tropical cyclones maintained destructive seas and winds as long as 5 days after the point of recurvature. Six of the 16 extratropical storms crossed the North Pacific and affected the Aleutians or western North America. Some of the physical processes associated with the evolution of extratropical storms from tropical cyclones are also discussed. (Author).
Author: Samson Brand
Publisher:
ISBN:
Category : Cyclones
Languages : en
Pages : 20
Get Book Here
Book Description
This study examines 16 recurving tropical storms and typhoons that occurred in the western North Pacific Ocean in 1971, to determine the characteristics of the storms after they became extratropical. Many of the extratropical storms that evolved from tropical cyclones maintained destructive seas and winds as long as 5 days after the point of recurvature. Six of the 16 extratropical storms crossed the North Pacific and affected the Aleutians or western North America. Some of the physical processes associated with the evolution of extratropical storms from tropical cyclones are also discussed. (Author).
Author: Peter M. Klein
Publisher:
ISBN: 9781423564164
Category :
Languages : en
Pages : 101
Get Book Here
Book Description
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.
Author: Gail M. Brown
Publisher:
ISBN:
Category : Cyclone tracks
Languages : en
Pages : 20
Get Book Here
Book Description
Author: Johnny C. L. Chan
Publisher: World Scientific
ISBN: 9814293482
Category : Science
Languages : en
Pages : 445
Get Book Here
Book Description
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
Author: Peter M. Klein
Publisher:
ISBN: 9781423531807
Category :
Languages : en
Pages : 262
Get Book Here
Book Description
This study of extratropical transition (ET) of tropical cyclones (TCs) in the western North Pacific examines 30 cases during 1 June through 31 October 1994-98 using Navy analyses, plus geostationary satellite visible, infrared, water vapor, and microwave imagery. Based on the similarity of all 30 ET cases in satellite imagery, a three-dimensional conceptual model of the transformation stage of ET is proposed to describe how these ET cases evolve into an incipient, baroclinic cyclone. A climatology of ET during the period studied is presented, and three levels of re-intensification (little, moderate, and deep) are defined based on storm intensity at the end of ET. The re- intensification stage in nine cases is studied via Navy Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS) control forecasts, simulations with the initial TC vortex removed, and simulations in which the initial TC vortex is displaced. These COAMPS simulations demonstrate that deep or moderate re- intensification depends on phasing of the poleward translating TC remnants with a critical region in which cyclogenesis is favored in the mid-latitude circulation. The mid-latitude circulation and TC contributions to the re- intensification stage are identified via superposition with the critical region and modification of its location and diagnostic values, respectively, and the combination of these contributions determines the final storm intensity at the end of ET.
Author:
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 28
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Six-hourly observations containing 18 parameters of tropical storms and typhoons in the western north Pacific Ocean during the period 1960 through 1969 were examined. The data were composited into four periods: before and after maximum intensity for East-West moving storms, and before and after recurvature for recurving storms. Monthly and seasonal variations of tropical cyclone intensity, speed of movement and size were examined. Correlation coefficients of the 18 tropical storm and typhoon parameters were computed for each of the four composited periods of study. (Author).
Author: Kenneth Raymond Liechty
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 136
Get Book Here
Book Description
Six-hourly observations containing 18 parameters of tropical storms and typhoons in the western north Pacific Ocean during the period 1960 through 1969 were examined. The data were composited into four periods: before and after maximum intensity for East-West moving storms, and before and after recurvature for recurving storms. Monthly and seasonal variations of tropical cyclone intensity, speed of movement and size were examined. Correlation coefficients of the 18 tropical storm and typhoon parameters were computed for each of the four composited periods of study. (Author).
Author: George W. Cry
Publisher:
ISBN:
Category : Hurricanes
Languages : en
Pages : 164
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Get Book Here
Book Description
The long-term goal of this project is to develop a better understanding of mesoscale and synoptic-scale processes associated with the entire life cycle of tropical cyclones in the western North Pacific. The inability to correctly identify tropical cyclone formation over the period of 24-48 hours poses a threat to shore and afloat assets across the western North Pacific. Furthermore, once a tropical cyclone has formed, the predictability of structure changes during intensification of the cyclone is very low, which is due to complex physical processes that vary over a wide range of space and time scales. Periods of reduced predictability occur throughout the tropical cyclone life cycle, which includes the decaying stage. Because decaying tropical cyclones often transition to a fast-moving and rapidly-developing extratropical cyclone that may contain gale-, storm-, or hurricane-force winds, there is a need to improve understanding and prediction of the extratropical transition phase of a decaying tropical cyclone. The structural evolution of the transition from a tropical to extratropical circulation involves rapid changes to the wind, cloud, and precipitation patterns that potentially impact maritime and shore-based facilities. The research being conducted on the comprehensive data sets gathered during the TCS-08 field program will result in increased accuracy associated with the prediction of tropical cyclone formation, intensification, and structural changes.
