Download or read book Three dimensional Numerical Simulation of an Extratropical Squall Line written by Todd Schimelfenig and published by . This book was released on 1996 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of a Squall Line Along a Cold Front written by Guangming Zhou and published by . This book was released on 1996 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 10-11 June 1985 squall line system with trailing stratiform precipitation observed during the Oklahoma PRE-STORM project has been numerically simulated using the three-dimensional cloud resolving nonhydrostatic COMMAS (COllaborative Model for Multiscale Atmospheric Simulation) model. The mesoscale model simulation successfully predicts the location and timing for the initiation of the cold frontal squall line. With the modified Kuo cumulus parameterization (Geleyn, 1985), the model was also able to simulate the observed rear inflow jet although its intensity was weaker than observed and some of its other general characteristics. However, leading edge convective features and the surface pressure perturbation pattern across the squall line (mesolow ahead, mesohigh just behind, and weak low near the back of the stratiform region) were not simulated. This is related to the limitations in the modified Kuo parameterization and the horizontal resolution. The COMMAS model, however, with higher resolution and better microphysical parameterizations including the presence of ice, does capture these and other common features of observed squall lines. Other features include a stratiform precipitation region, characteristic relative front-to-rear inflow at low levels over the gust front, both rear and front flow in the upper part of the convection, banded vorticity structure, cyclonic circulation around a midlevel mesoscale convective vortex at the northern end of the line, anticyclonic circulation at the southern end of the line, and supercellular structure at the northern end of the line where a tornado was observed. Vertical vorticity analysis reveals more detailed structure than in observational studies (e.g., Biggerstaff and Houze, 1991a,b). The vertical vorticity fields are characterized by positive bands in the convective and stratiform regions with a negative band in between up to about 6 km in height. In the upper troposphere, the vertical vorticity field is characterized by a positive vorticity band in the convective region and generally negative vorticity throughout the northern portion of the stratiform region. Convective scale positive-negative vertical volticity bands are embedded within the mesoscale vorticity band structure. In the lower troposphere, the stretching of existing vertical vorticity is the most important factor for generating and maintaining the vertical vorticity over the convective region. The tilting and solenoidal terms are the two main factors responsible for the generation and maintenance of the positive vorticity within the stratiform region and the negative vertical vorticity in between the convective and stratiform region. The baroclinic (solenoidal) term has the same magnitude as those of tilting and stretching terms. This term has not been estimated in previous observational studies. A strong cyclonic circulation or mesoscale convective vortex (MCV) is located about 120 km behind the north end of the surface gust front. The positive vorticity area is limited approximately to a 50 km by 70 km region and the maximum magnitude of the vertical vorticity ranges between 10f and 20f. Budget analysis shows that the positive vorticity within the MCV region is produced mainly by the tilting and stretching terms. (Abstract shortened by UMI.)
Download or read book Mesoscale Meteorology and Forecasting written by Peter Ray and published by Springer. This book was released on 2015-03-30 with total page 803 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of selected lectures presented at the ‘Intensive Course on Mesoscale Meteorology and Forecasting’ in Boulder, USA, in 1984. It includes mesoscale classifications, observing techniques and systems, internally generated circulations, mesoscale convective systems, externally forced circulations, modeling and short-range forecasting techniques. This is a highly illustrated book and comprehensive work, including extensive bibliographic references. It is aimed at graduates in meteorology and for professionals working in the field.
Download or read book Numerical Simulation and Analysis of the Propagation of a Prefrontal Squall Line written by Jennifer M. Cram and published by . This book was released on 1990 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extratropical Cyclones written by Chester Newton and published by Springer. This book was released on 2018-11-22 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is composed of 12 review papers invited for the Palmen Memorial Symposium on Extratropical Cyclones held in Helsinki, Finland, 29 August - 2 September 1988. To celebrate the 90th anniversary of the birth of Professor Erik Palmén, this symposium was organized to give a state-of-the-art picture of research on the structure and dynamics of extratropical cyclones, a topic which Palmén pioneered during the era of advances in aerological analysis. This symposium was organized by the Geophysical Society of Finland and the American Meteorological Society in cooperation with the Danish, Norwegian and Swedish Geophysical Societies. Extratropical Cyclones offers state-of-the-art information on extratropical cyclones, and recent findings by European and American authorities in various subject areas. The first two chapters discuss Palmen's works on cyclones and his early general circulation concepts. The ten chapters following chronicle the advances in understanding cyclones; the theory, structure, and physical processes of cyclones; orographic cyclogenesis; and more. Extratropical Cyclones also contains synoptic case analyses, modeling results, examples of the phenomena discussed, and abundant references. While particular aspects are emphasized in the individual contributions, the book as a whole summarizes the major features of various kinds of extratropical cyclones based on observational analyses, theory and numerical experimentation. This volume is of interest to researchers in dynamic and synoptic meteorology, climatology and mesometeorology, as well as in numerical modeling and weather forecasting. It is also useful for meteorology courses at graduate and upper undergraduate levels.
Download or read book Monthly Weather Review written by and published by . This book was released on 2007 with total page 1652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cloud Systems Hurricanes and the Tropical Rainfall Measuring Mission TRMM written by Wei-Kuo Tao and published by Springer. This book was released on 2015-03-30 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a tribute to a pioneer in tropical meteorology research, Dr. Joanne Simpson. It is a recollection of some of the high points of her career, from her fifty years of investigating hurricanes and clouds to her management of the crutial and highly successful TRMM project (Tropical Rainfall Measuring Mission), a joint mission between the NASA and the Japan Aerospace Exploration Agency (JAXA).
Download or read book Synoptic Dynamic Meteorology and Weather Analysis and Forecasting written by Lance Bosart and published by Springer Science & Business Media. This book was released on 2013-01-06 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated monograph honoring scientist and teacher Fred Sanders includes 16 articles by various authors as well as dozens of unique photographs evoking Fred's character and the vitality of the scientific community he helped develop through his work. Editors Lance F. Bosart (University at Albany/SUNY) and Howard B. Bluestein (University of Oklahoma at Norman) have brought together contributions from luminary authors-including Kerry Emanuel, Robert Burpee, Edward Kessler, and Louis Uccellini-to honor Fred's work in the fields of forecasting, weather analysis, synoptic meteorology, and climatology. The result is a significant volume of work that represents a lasting record of Fred Sanders' influence on atmospheric science and legacy of teaching.
Download or read book Cloud Dynamics written by Robert A. Houze Jr. and published by Elsevier. This book was released on 1994-06-28 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clouds play a critical role in the Earth's climate, general atmospheric circulation, and global water balance. Clouds are essential elements in mesoscale meteorology, atmospheric chemistry, air pollution, atmosphericradiation, and weather forecasting, and thus must be understood by any student or researcher in the atmospheric sciences. Cloud Dynamics provides a skillful and comprehensive examination of the nature of clouds--what they look like and why, how scientists observe them, and the basic dynamics and physics that underlie them. The book describes the mechanics governing each type of cloud that occurs in Earth's atmosphere, and the organization of various types of clouds in larger weather systems such as fronts, thunderstorms, and hurricanes.This book is aimed specifically at graduate students, advanced undergraduates, practicing researchers either already in atmospheric science or moving in from a related scientific field, and operational meteorologists. Some prior knowledge of atmospheric dynamics and physics is helpful, but a thorough overview of the necessary prerequisites is supplied. Provides a complete treatment of clouds integrating the analysis of air motions with cloud structure, microphysics, and precipitation mechanics Describes and explains the basic types of clouds and cloud systems that occur in the atmosphere-fog, stratus, stratocumulus, altocumulus, altostratus, cirrus, thunderstorms, tornadoes, waterspouts, orographically induced clouds, mesoscale convection complexes, hurricanes, fronts, and extratropical cyclones Presents a photographic guide, presented in the first chapter, linking the examination of each type of cloud with an image to enhance visual retention and understanding Summarizes the fundamentals, both observational and theoretical, of atmospheric dynamics, thermodynamics, cloud microphysics, and radar meteorology, allowing each type of cloud to be examined in depth Integrates the latest field observations, numerical model simulations, and theory Supplies a theoretical treatment suitable for the advanced undergraduate or graduate level
Download or read book The Representation of Cumulus Convection in Numerical Models written by Kerry Emanuel and published by Springer. This book was released on 2015-03-30 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents descriptions of numerical models for testing cumulus in cloud fields. It is divided into six parts. Part I provides an overview of the problem, including descriptions of cumulus clouds and the effects of ensembles of cumulus clouds on mass, momentum, and vorticity distributions. A review of closure assumptions is also provided. A review of "classical" convection schemes in widespread use is provided in Part II. The special problems associated with the representation of convection in mesoscale models are discussed in Part III, along with descriptions of some of the commonly used mesoscale schemes. Part IV covers some of the problems associated with the representation of convection in climate models, while the parameterization of slantwise convection is the subject of Part V.
Download or read book The Life Cycles of Extratropical Cyclones written by Melyvn Shapiro and published by Springer. This book was released on 2015-04-01 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the expanded versions of invited papers presented at the International Symposium on the Life Cycles of Extratropical Cyclones, held in Bergen, Norway, 27 June–1 July 1994. It is of particular interest to historians of meteorology, researchers and forecasters. The material can be used for advanced undergraduate and undergraduate meteorology courses, and it represents a useful source of references to extratropical cyclones. The book provides the historical background of extratropical cyclone research and forecasting from the eighteenth to the mid-twentieth century. It also presents extratropical cyclone theory, observations, analysis, diagnosis and prediction.
Download or read book Storm and Cloud Dynamics written by William R. Cotton and published by Academic Press. This book was released on 2010-12-21 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt: Storm and Cloud Dynamics focuses on the dynamics of clouds and of precipitating mesoscale meteorological systems. Clouds and precipitating mesoscale systems represent some of the most important and scientifically exciting weather systems in the world. These are the systems that produce torrential rains, severe winds including downburst and tornadoes, hail, thunder and lightning, and major snow storms. Forecasting such storms represents a major challenge since they are too small to be adequately resolved by conventional observing networks and numerical prediction models. Provides a complete treatment of clouds integrating the analysis of air motions with cloud structure, microphysics, and precipitation mechanics Describes and explains the basic types of clouds and cloud systems that occur in the atmosphere-fog, stratus, stratocumulus, altocumulus, altostratus, cirrus, thunderstorms, tornadoes, waterspouts, orographically induced clouds, mesoscale convection complexes, hurricanes, fronts, and extratropical cyclones Summarizes the fundamentals, both observational and theoretical, of atmospheric dynamics, thermodynamics, cloud microphysics, and radar meteorology, allowing each type of cloud to be examined in depth Integrates the latest field observations, numerical model simulations, and theory Supplies a theoretical treatment suitable for the advanced undergraduate or graduate level, as well as post-graduate
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1976 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological Monographs written by and published by . This book was released on 2003 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Geophysics written by and published by Academic Press. This book was released on 1983-02-16 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Geophysics
Download or read book Wind and Seismic Effects written by United States-Japan Cooperative Program in Natural Resources. Panel on Wind and Seismic Effects and published by . This book was released on 1976 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
