Download or read book The Dynamics of Tropical Intraseasonal Variability written by Benjamin Paul Kirtman and published by . This book was released on 1992 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intraseasonal Variability in the Atmosphere Ocean Climate System written by William K.-M. Lau and published by Springer Science & Business Media. This book was released on 2011-10-25 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving the reliability of long-range forecasts of natural disasters, such as severe weather, droughts and floods, in North America, South America, Africa and the Asian/Australasian monsoon regions is of vital importance to the livelihood of millions of people who are affected by these events. In recent years the significance of major short-term climatic variability, and events such as the El Nino/Southern Oscillation in the Pacific, with its worldwide effect on rainfall patterns, has been all to clearly demonstrated. Understanding and predicting the intra-seasonal variability (ISV) of the ocean and atmosphere is crucial to improving long range environmental forecasts and the reliability of climate change projects through climate models. In the second edition of this classic book on the subject, the authors have updated the original chapters, where appropriate, and added a new chapter that includes short subjects representing substantial new development in ISV research since the publication of the first edition.

Download or read book Tropical Intraseasonal Variability and the Stochastic Skeleton Method written by Andrew J. Majda and published by Springer Nature. This book was released on 2019-09-24 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this text, modern applied mathematics and physical insight are used to construct the simplest and first nonlinear dynamical model for the Madden-Julian oscillation (MJO), i.e. the stochastic skeleton model. This model captures the fundamental features of the MJO and offers a theoretical prediction of its structure, leading to new detailed methods to identify it in observational data. The text contributes to understanding and predicting intraseasonal variability, which remains a challenging task in contemporary climate, atmospheric, and oceanic science. In the tropics, the Madden-Julian oscillation (MJO) is the dominant component of intraseasonal variability. One of the strengths of this text is demonstrating how a blend of modern applied mathematical tools, including linear and nonlinear partial differential equations (PDEs), simple stochastic modeling, and numerical algorithms, have been used in conjunction with physical insight to create the model. These tools are also applied in developing several extensions of the model in order to capture additional features of the MJO, including its refined vertical structure and its interactions with the extratropics. This book is of interest to graduate students, postdocs, and senior researchers in pure and applied mathematics, physics, engineering, and climate, atmospheric, and oceanic science interested in turbulent dynamical systems as well as other complex systems.

Download or read book Fundamentals of Tropical Climate Dynamics written by Tim Li and published by Springer. This book was released on 2017-06-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook introduces fundamental dynamics of tropical atmosphere and ocean useful for advanced graduate courses in atmospheric and climate sciences. It presents an overview of simple atmospheric and oceanic models, as well as the observed phenomena associated with major climate modes in the tropics. It provides students with an up-to-date understanding of the dynamics of tropical climate and weather phenomena. A particular focus is given to scale interactions and atmosphere-ocean interactions associated with tropical mean climate (such as ITCZ asymmetry and annual cycles), synoptic-scale variability (such as synoptic wave trains, easterly waves and tropical cyclones), intraseasonal oscillations (such as Madden-Julian Oscillation and boreal summer intraseasonal oscillation), and interannual variability (such as El Niño-Southern Oscillation and Indian Ocean Dipole). Theoretical and conceptual models are presented for better understanding of physical mechanisms behind the observational phenomena. This book aims to motivate graduate students in atmospheric sciences and oceanography by providing them with the key methods and tools necessary to conduct research.

Download or read book Dynamics of the Tropical Atmosphere and Oceans written by Peter J. Webster and published by John Wiley & Sons. This book was released on 2020-06-08 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unique and comprehensive view of the fundamental dynamical and thermodynamic principles underlying the large circulations of the coupled ocean-atmosphere system Dynamics of The Tropical Atmosphere and Oceans provides a detailed description of macroscale tropical circulation systems such as the monsoon, the Hadley and Walker Circulations, El Niño, and the tropical ocean warm pool. These macroscale circulations interact with a myriad of higher frequency systems, ranging from convective cloud systems to migrating equatorial waves that attend the low-frequency background flow. Towards understanding and predicting these circulation systems. A comprehensive overview of the dynamics and thermodynamics of large-scale tropical atmosphere and oceans is presented using both a “reductionist” and “holistic” perspectives of the coupled tropical system. The reductionist perspective provides a detailed description of the individual elements of the ocean and atmospheric circulations. The physical nature of each component of the tropical circulation such as the Hadley and Walker circulations, the monsoon, the incursion of extratropical phenomena into the tropics, precipitation distributions, equatorial waves and disturbances described in detail. The holistic perspective provides a physical description of how the collection of the individual components produces the observed tropical weather and climate. How the collective tropical processes determine the tropical circulation and their role in global weather and climate is provided in a series of overlapping theoretical and modelling constructs. The structure of the book follows a graduated framework. Following a detailed description of tropical phenomenology, the reader is introduced to dynamical and thermodynamical constraints that guide the planetary climate and establish a critical role for the tropics. Equatorial wave theory is developed for simple and complex background flows, including the critical role played by moist processes. The manner in which the tropics and the extratropics interact is then described, followed by a discussion of the physics behind the subtropical and near-equatorial precipitation including arid regions. The El Niño phenomena and the monsoon circulations are discussed, including their covariance and predictability. Finally, the changing structure of the tropics is discussed in terms of the extent of the tropical ocean warm pool and its relationship to the intensity of global convection and climate change. Dynamics of the Tropical Atmosphere and Oceans is aimed at advanced undergraduate and early career graduate students. It also serves as an excellent general reference book for scientists interested in tropical circulations and their relationship with the broader climate system.

Download or read book Intraseasonal Variability in the Atmosphere Ocean Climate System written by William K.-M. Lau and published by Springer Science & Business Media. This book was released on 2007-06-10 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive review of intra-seasonal variability (ISV); the contents are balanced between observation, theory and modeling. Starting with an overview of ISV and historical observations, the book addresses the coupling between ocean and atmosphere, and the worldwide role of ISV in monsoon variability. Also considered are the connections between oscillations like the Madden, Julian and El Nino/Southern and short-term climate.

Download or read book Internal Atmospheric Dynamics and Air sea Interactions in the Tropical Intraseasonal Oscillation written by Kathy Pegion and published by . This book was released on 2007 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamics of the Tropical Intraseasonal Oscillation and Its Interaction with the Synoptic Variability written by Chunhua Zhou and published by . This book was released on 2009 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical experiments with a 2.5-layer and a 2-level model are conducted to study the mechanism for the planetary scale selection of the Madden-Julian Oscillation (MJO), in which the nonlinear heating leads to the interference between the dry and wet Kelvin waves and eventually dissipates and "filters out" shorter wavelength perturbations, leading to a longwave selection. The boundary layer plays a role in destabilizing the MJO through frictional moisture convergence and in retaining the in-phase zonal wind-pressure structure. Using the same 2.5 layer model the origin of the off-equatorial 10-20-day mode is studied and it turns out to be an off-equatorial Rossby mode intrinsic of the atmosphere and the boreal summertime mean flow plays an important role in this scale selection.

Download or read book Analysis and Interpretation of Tropical Intraseasonal Variability written by John T. Fasullo and published by . This book was released on 1997 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sub seasonal to Seasonal Prediction written by Andrew Robertson and published by Elsevier. This book was released on 2018-10-19 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gap Between Weather and Climate Forecasting: Sub-seasonal to Seasonal Prediction is an ideal reference for researchers and practitioners across the range of disciplines involved in the science, modeling, forecasting and application of this new frontier in sub-seasonal to seasonal (S2S) prediction. It provides an accessible, yet rigorous, introduction to the scientific principles and sources of predictability through the unique challenges of numerical simulation and forecasting with state-of-science modeling codes and supercomputers. Additional coverage includes the prospects for developing applications to trigger early action decisions to lessen weather catastrophes, minimize costly damage, and optimize operator decisions. The book consists of a set of contributed chapters solicited from experts and leaders in the fields of S2S predictability science, numerical modeling, operational forecasting, and developing application sectors. The introduction and conclusion, written by the co-editors, provides historical perspective, unique synthesis and prospects, and emerging opportunities in this exciting, complex and interdisciplinary field. Contains contributed chapters from leaders and experts in sub-seasonal to seasonal science, forecasting and applications Provides a one-stop shop for graduate students, academic and applied researchers, and practitioners in an emerging and interdisciplinary field Offers a synthesis of the state of S2S science through the use of concrete examples, enabling potential users of S2S forecasts to quickly grasp the potential for application in their own decision-making Includes a broad set of topics, illustrated with graphic examples, that highlight interdisciplinary linkages

Download or read book Internal Atmospheric Dynamics and Tropical Indo Pacific Climate Variability written by Benjamin Paul Kirtman and published by . This book was released on 2004 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of Air sea Interactions on the Simulation of Tropical Intraseasonal Variability written by Kathy Pegion and published by . This book was released on 2007 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Asian Summer Monsoon written by Yunyun Liu and published by Elsevier. This book was released on 2019-07-13 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asian Summer Monsoon: Characteristics, Variability, Teleconnections and Projection focuses on the connections between the Indian Summer and East Asian Summer Monsoons, also including the South China Sea Summer Monsoon. While these systems have profound differences, their interactions have significant impacts on the climatic regimes in the region and throughout the world. In summer, the ASM engine pumps moisture transported across thousands of miles from the Indian and Pacific Oceans to the monsoon regions, producing heavy rains over south and east Asia and its adjacent marginal seas. This book reviews the different subsystems and their impact, providing guidance to enhance prediction models. Synthesizes the connections between the East Asian Summer Monsoon, the Indian Summer Monsoon and the Asian Summer Monsoon system Includes subsections on holistic characteristics, sub-seasonal and interannual variability, teleconnection patterns, and projections of future change Connects current theory and practice on Asian Monsoon forecasting, providing researchers with new skills and information to use in climate and weather forecasting

Download or read book The Role of Dynamics in the Formation and Maintenance of the Tropical Cold point Tropopause written by Joowan Kim and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis examines characteristics of the tropical cold-point tropopause (CPT)and associated dynamic mechanisms using observations, idealized model, and generalcirculation model simulations. Fine-scale structure of the CPT is investigated usingnewly available high-resolution temperature data. Then, the dynamic mechanism ofthe CPT formation is rigorously tested and examined using a dry primitive equationmodel under the framework of transformed Eulerian-mean. Finally, the characteristicsof the CPT are examined in the state-of-art climate models that participated inthe Coupled Model Intercomparison Project Phase 5 (CMIP5). The current climatemodels' capability to reproduce the CPT features is evaluated and discussed.In the observational study, climatology, seasonal cycle, and intraseasonal variabilityof three CPT properties (temperature, pressure, and sharpness) are examinedusing high-resolution temperature profiles derived from COSMIC global positioningsystem (GPS) radio occultation (RO) measurements. The climatology obtained fromthe GPS RO data captures the characteristic structure of the CPT successfully. Thethree CPT properties show coherent seasonal cycle in the tropics that the CPT iscolder, higher (lower in pressure) and sharper in boreal winter compared to that inboreal summer. This seasonality is consistent with that of the large-scale tropopauseupwelling, which is largely driven by near-tropopause processes. The variability onintraseasonal timescales is more likely controlled by the tropical deep convectionand associated tropical waves. Particularly, intraseasonal variability of the CPTproperties shows clear signature of Kelvin waves, with a secondary contribution byMadden-Julian Oscillation in the deep tropics.The formation mechanism of the CPT is further investigated using a dry primitiveequation general circulation model with a simplified thermal forcing. The simpledynamic system reproduces a distinct cold level at the top of the tropical troposphere,which is analogous to the CPT in the real atmosphere. The modeled CPT is primarilymaintained by adiabatic cooling due to upwelling at the tropical tropopause,and synoptic-scale wave forcing in the subtropical lower stratosphere is found as theprimary driver of the upwelling. Further investigation on the evolution mechanismsuggests that the formation of the CPT is a part of balancing process between waveforcings and mean flow response in the tropics, and this is likely an important processthat decides the vertical extent of the subtropical jet in the lower stratosphere.The thermal characteristics of the CPT examined in CMIP5 models exhibitreasonable agreements with observations. Historical simulations successfully capturethe spatio-temporal structure of the CPT on annual and seasonal timescales. The interannualvariability associated with El Niño Southern Oscillation and intraseasonalvariability associated with equatorial waves are also roughly reproduced. However,many of the models still have overall warm bias near the CPT and non-negligiblebiases in the amplitude of variability in intraseasonal to interannual timescales. Inthe future projections based on the Representative Concentration Pathway (RCP)8.5 scenario, the models predict robust warming both at the 100-hPa and zero-lapseratelevels (estimated CPT), but cooling at the 70-hPa level. A weakened seasonalcycle in the temperature is also found in most models at both the 100- and 70-hPalevels, which could have an important implication for the stratosphere-troposphereexchange and related climate variability." --

Download or read book Tropical and Extratropical Air Sea Interactions written by Swadhin Kumar Behera and published by Elsevier. This book was released on 2020-11-18 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical and Extratropical Air-Sea Interactions: Modes of Climate Variations provides a thorough introduction to global atmospheric and oceanic processes, as well as tropical, subtropical and mid-latitude ocean-atmosphere interactions. Written by leading experts in the field, each chapter is dedicated to a specific topic of air-sea interactions (such as ENSO, IOD, Atlantic Nino, ENSO Modoki, and newly discovered coastal Niños/Niñas) and their teleconnections. As the first book to cover all topics of tropical and extra-tropical air-sea interactions and new modes of climate variations, this book is an excellent resource for researchers and students of ocean, atmospheric and climate sciences. Presents case studies on the ocean-atmosphere phenomena, including El Nino Southern Oscillation (ENSO), Indian Ocean Dipole and different Nino/Nina phenomena Provides a clear description of air-sea relationships across the world’s ocean with an analysis of air-sea relations in different time scales and a focus on climate change Includes prospects for air-sea interaction research, thus benefiting young researchers and students

Download or read book Dynamics of Boreal Summer Intraseasonal Variability written by K. Sperber and published by . This book was released on 2004 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Models for Tropical Climate Dynamics written by Boualem Khouider and published by Springer. This book was released on 2019-07-03 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a survey of the research work done by the author over the last 15 years, in collaboration with various eminent mathematicians and climate scientists on the subject of tropical convection and convectively coupled waves. In the areas of climate modelling and climate change science, tropical dynamics and tropical rainfall are among the biggest uncertainties of future projections. This not only puts at risk billions of human beings who populate the tropical continents but it is also of central importance for climate predictions on the global scale. This book aims to introduce the non-expert readers in mathematics and theoretical physics to this fascinating topic in order to attract interest into this difficult and exciting research area. The general thyme revolves around the use of new deterministic and stochastic multi-cloud models for tropical convection and convectively coupled waves. It draws modelling ideas from various areas of mathematics and physics and used in conjunction with state-of-the-art satellite and in-situ observations and detailed numerical simulations. After a review of preliminary material on tropical dynamics and moist thermodynamics, including recent discoveries based on satellite observations as well as Markov chains, the book immerses the reader into the area of models for convection and tropical waves. It begins with basic concepts of linear stability analysis and ends with the use of these models to improve the state-of-the-art global climate models. The book also contains a fair amount of exercises that makes it suitable as a textbook complement on the subject.