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Author : David J. Stensrud
Publisher : Cambridge University Press
Page : 408 pages
File Size : 55,7 Mb
Release : 2007-05-03
Category : Science
ISBN : 9780521865401
Contents: 1.
Author : Anonim
Publisher : Unknown
Page : 282 pages
File Size : 47,6 Mb
Release : 1990
Category : Atmospheric physics
ISBN : IND:30000097836534
Author : Chien-Hsiung Yang
Publisher : Unknown
Page : 284 pages
File Size : 49,5 Mb
Release : 1990
Category : Atmospheric models
ISBN : UOM:39015095330919
The procedures and results of a study undertaken to evaluate and assess the impacts of three new parameterization schemes for the GL global spectral model as a 3-4 day range forecast model are described. The tree parameterization schemes are one each for the boundary-layer physics, moist convection and heating due to solar and terrestrial radiations. These schemes are incorporated either singly or jointly into a rhomboidal-30, 12-layer global spectral model for four-day simulations using FGGE III- a data as input. Evaluation and assessment are made on the basis of two kinds of global statistics: mean and root-mean-square errors, and on their magnitudes and distributions. The statistics are generated for both the primary, that is, prognostic, variables, and supplementary variables such as zonal-mean and zonal-eddies energy densities. The new moist convection scheme has been found to increase convective activity significantly and maintain it throughout the four-day period. It also warms and dries the middle troposphere, but produces rainfall far in excess of the climatology. The radiation parameterization has been found to cool the atmosphere and reduce its specific humidity. It counterbalances enhanced heating and moistening brought about by the new boundary-layer and moist convection schemes and eliminates the systematic warming of the old model.
Author : David J. Stensrud
Publisher : Cambridge University Press
Page : 594 pages
File Size : 41,8 Mb
Release : 2009-12-03
Category : Science
ISBN : 9781107469655
Numerical weather prediction models play an increasingly important role in meteorology, both in short- and medium-range forecasting and global climate change studies. The most important components of any numerical weather prediction model are the subgrid-scale parameterization schemes, and the analysis and understanding of these schemes is a key aspect of numerical weather prediction. This book provides in-depth explorations of the most commonly used types of parameterization schemes that influence both short-range weather forecasts and global climate models. Several parameterizations are summarised and compared, followed by a discussion of their limitations. Review questions at the end of each chapter enable readers to monitor their understanding of the topics covered, and solutions are available to instructors at www.cambridge.org/9780521865401. This will be an essential reference for academic researchers, meteorologists, weather forecasters, and graduate students interested in numerical weather prediction and its use in weather forecasting.
Author : Jui-Lin Frank Li
Publisher : Unknown
Page : 448 pages
File Size : 54,9 Mb
Release : 1994
Category : Electronic
ISBN : WISC:89052290806
Author : Robert S Plant,Jun-Ichi Yano
Publisher : World Scientific
Page : 1172 pages
File Size : 41,7 Mb
Release : 2015-08-21
Category : Technology & Engineering
ISBN : 9781783266920
Precipitating atmospheric convection is fundamental to the Earth's weather and climate. It plays a leading role in the heat, moisture and momentum budgets. Appropriate modelling of convection is thus a prerequisite for reliable numerical weather prediction and climate modelling. The current standard approach is to represent it by subgrid-scale convection parameterization. Parameterization of Atmospheric Convection provides, for the first time, a comprehensive presentation of this important topic. The two-volume set equips readers with a firm grasp of the wide range of important issues, and thorough coverage is given of both the theoretical and practical aspects. This makes the parameterization problem accessible to a wider range of scientists than before. At the same time, by providing a solid bottom-up presentation of convection parameterization, this set is the definitive reference point for atmospheric scientists and modellers working on such problems. Volume 1 of this two-volume set focuses on the basic principles: introductions to atmospheric convection and tropical dynamics, explanations and discussions of key parameterization concepts, and a thorough and critical exploration of the mass-flux parameterization framework, which underlies the methods currently used in almost all operational models and at major climate modelling centres. Volume 2 focuses on the practice, which also leads to some more advanced fundamental issues. It includes: perspectives on operational implementations and model performance, tailored verification approaches, the role and representation of cloud microphysics, alternative parameterization approaches, stochasticity, criticality, and symmetry constraints. Contents:Volume 1:Basic Parameterization Concepts and Issues:Moist Atmospheric Convection: An Introduction and Overview (Á Horváth)Sub-Grid Parameterization Problem (J-I Yano)Scale Separation (J-I Yano)Quasi-Equilibrium (R S Plant and J-I Yano)Tropical Dynamics: Large-Scale Convectively Coupled Waves (Ž Fuchs)Mass-Flux Parameterization:Hot-Tower Hypothesis and Mass-Flux Formulation (J-I Yano)Formulation of the Mass-Flux Convective Parameterization (J-I Yano)Thermodynamic Effects of Convection under the Mass-Flux Formulation (J-I Yano)Spectral and Bulk Mass-Flux Representations (R S Plant and O Martínez-Alvarado)Entrainment and Detrainment Formulations for Mass-Flux Parameterization (W C de Rooy, J-I Yano, P Bechtold and S J Böing)Closure (J-I Yano and R S Plant)Convective Vertical Velocity (J-I Yano)Downdraughts (J-I Yano)Momentum Transfer (J-I Yano)Volume 2:Operational Issues:Convection in Global Numerical Weather Prediction (P Bechtold)Satellite Observations of Convection and Their Implications for Parameterizations (J Quaas and P Stier)Convection and Waves on Small Planets and the Real Earth (P Bechtold, N Semane and S Malardel)Microphysics of Convective Cloud and Its Treatment in Parameterization (V T J Phillips and J-I Yano)Model Resolution Issues and New Approaches in the Convection-Permitting Regimes (L Gerard)Stochastic Aspects of Convective Parameterization (R S Plant, L Bengtsson and M A Whitall)Verification of High-Resolution Precipitation Forecast with Radar-Based Data (D Řezáčová, B Szintai, B Jakubiak, J-I Yano and S Turner)Unification and Consistency:Formulations of Moist Thermodynamics for Atmospheric Modelling (P Marquet and J-F Geleyn)Representation of Microphysical Processes in Cloud-Resolving Models (A P Khain)Cumulus Convection as a Turbulent Flow (A Grant)Clouds and Convection as Subgrid-Scale Distributions (E Machulskaya)Towards a Unified and Self-Consistent Parameterization Framework (J-I Yano, L Bengtsson, J-F Geleyn and R Brozkova)Theoretical Physics Perspectives:Regimes of Self-Organized Criticality in Atmospheric Convection (F Spineanu, M Vlad and D Palade)Invariant and Conservative Parameterization Schemes (A Bihlo, E Dos Santos Cardoso-Bihlo and R O Popovych)Conclusions:Conclusions (R S Plant and J-I Yano) Readership: Atmospheric scientists and modellers. Key Features:The first coherent book to focus on convective parameterization for climate modelling and numerical weather predictionClear focus on the underpinning theory of parameterization, and its possible extensionsPlaces current efforts to improve parameterizations firmly into the theoretical context rather than focusing on details of the technical implementation or changes to overall model performanceKeywords:Atmospheric Convection;Parameterization;Numerical Modelling;Numerical Weather Prediction;Global Climate Modelling
Author : Shie-yui Liong,Masaki Satoh
Publisher : World Scientific
Page : 187 pages
File Size : 55,5 Mb
Release : 2023-04-26
Category : Science
ISBN : 9789811275456
The 19th Annual Meeting of the Asia Oceania Geosciences Society (AOGS 2022) was held from 1st to 5th August 2022. This proceedings volume includes selected extended abstracts from a challenging array of presentations at this conference. The AOGS Annual Meeting is a leading venue for professional interaction among researchers and practitioners, covering diverse disciplines of geosciences.
Author : Anonim
Publisher : Unknown
Page : 1652 pages
File Size : 53,9 Mb
Release : 2007
Category : Meteorology
ISBN : UGA:32108041155048
Author : Shunlin Liang,Jindi Wang
Publisher : Academic Press
Page : 1010 pages
File Size : 49,7 Mb
Release : 2019-11-23
Category : Science
ISBN : 9780128165287
Advanced Remote Sensing: Terrestrial Information Extraction and Applications, Second Edition, is a thoroughly updated application-based reference that provides a single source on the mathematical concepts necessary for remote sensing data gathering and assimilation. It presents state-of-the-art techniques for estimating land surface variables from a variety of data types, including optical sensors like RADAR and LIDAR. The book provides scientists in a number of different fields, including geography, geophysics, geology, atmospheric science, environmental science, planetary science and ecology with access to critically-important data extraction techniques and their virtually unlimited applications. While rigorous enough for the most experienced of scientists, the techniques presented are well designed and integrated, making the book’s content intuitive and practical in its implementation. Provides a comprehensive overview of many practical methods and algorithms Offers descriptions of the principles and procedures of the state-of-the-art in remote sensing Includes real-world case studies and end-of-chapter exercises Contains thoroughly revised chapters, newly developed applications and updated examples
Author : Anonim
Publisher : Unknown
Page : 382 pages
File Size : 44,7 Mb
Release : 2024-06-28
Category : Environmental geology
ISBN : CHI:62485369
Author : William John Hurlin
Publisher : Unknown
Page : 216 pages
File Size : 47,6 Mb
Release : 1983
Category : Hydrologic models
ISBN : WISC:89105684294
Author : Horia Hangan,Ahsan Kareem
Publisher : Oxford University Press
Page : 645 pages
File Size : 43,5 Mb
Release : 2021-08-16
Category : Science
ISBN : 9780190670276
In different areas of the world, much of the damage due to wind is caused by non-synoptic, local wind storm events, such as tornadoes and downbursts. In North America the damage due to these winds is more than 65% of total wind damage, and there are no guidelines or code implementations to deal with such catastrophic events. As we enter the third decade of the twenty-first century, current research is in its first phase of addressing these types of events, from their characterization, simulation, and loading, to collapse-mode effects on buildings and structures, as well as socioeconomic implications. The need is clear to better understand non-synoptic local winds; properly simulate them; assess the difference in loading between these events and synoptic large-scale winds that have been part of the wind engineering practice for more than five decades; determine their statistics and associated risks; and apply this through guidelines, codes, risk mitigation, and adaptation responses to socioeconomic impact. The Oxford Handbook of Non-Synoptic Wind Storms, led by Dr. Horia Hangan and Dr. Ahsan Kareem, features nearly 30 chapters, contributed by an international panel of leading scientists, scholars, and engineers, that address these issues and stimulate thought, research, and responses to non-synoptic wind storm hazards in North America and worldwide. Together, these articles provide clear definitions of the problems to be tackled, offer a strategic framework for forward-looking research, identify the best-suited tools and methodologies to address the problems at hand, and suggest ways to maximize collaborative planning between the disciplines that will tackle these challenges.
Author : M.E. Schlesinger
Publisher : Springer Science & Business Media
Page : 635 pages
File Size : 47,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400930414
PREFACE xv LIST OF LECTURERS xix LIST OF PARTICIPANTS xx]. VOLUME I PART I - DESIGN AND DEVELOPMENT OF PHYSICALLY-BASED MODELS OF THE ATMOSPHERE Section 1 - Introduction GATES, W. L. - Climate and the Climate System 3 SIMMONS, A. J. and L. BENGTSSON - Atmospheric General Circulation Models: Their Design and Use for Climate Studies 23 Section 2 - Numerical Methods for Large-Scale Dynamics ARAKAWA, A. - Finite-Difference Methods in Climate Modeling 79 BOURKE, W. - Spectral Methods in Global Climate and Weather Prediction Models 169 Section 3 - Parameterization of Subgrid-Scale Physical Processes FOUQUART, Y. - Radiative Transfer in Climate Models 223 LAVAL, K. - Land Surface Processes 285 SELLERS, P. J. , Y. MINTZ, Y. C. SUD and A. DALCHER - A Brief Description of the Simple Biosphere Model (SiB) 307 SOMMERIA, G. - Parameterization of the Planetary Boundary Layer in Large-Scale Atmospheric Models 331 x TABLE OF CONTENTS TIEDTKE, M. - Parameterization of Cumulus Convection in Large-Scale Models 375 SUNDQVIST, H. - Parameterization of Condensation and Associated Clouds in Models for Weather Prediction and General Circulation Simulation 433 PART II - DESIGN AND DEVELOPMENT OF PHYSICALLY-BASED MODELS OF THE OCEAN AND SEA ICE HAN, Y. -J. - Modelling and Simulation of the General Circulation of the Ocean 465 HIBLER, W. D. - Modelling Sea Ice Thermodynamics and Dynamics in Climate Studies 509 PART III - METHODS OF COUPLING ATMOSPHERE, OCEAN AND ICE MODELS BRYAN, K.
Author : Claus Beisbart,Nicole J. Saam
Publisher : Springer
Page : 1074 pages
File Size : 44,9 Mb
Release : 2019-04-09
Category : Computers
ISBN : 9783319707662
This unique volume introduces and discusses the methods of validating computer simulations in scientific research. The core concepts, strategies, and techniques of validation are explained by an international team of pre-eminent authorities, drawing on expertise from various fields ranging from engineering and the physical sciences to the social sciences and history. The work also offers new and original philosophical perspectives on the validation of simulations. Topics and features: introduces the fundamental concepts and principles related to the validation of computer simulations, and examines philosophical frameworks for thinking about validation; provides an overview of the various strategies and techniques available for validating simulations, as well as the preparatory steps that have to be taken prior to validation; describes commonly used reference points and mathematical frameworks applicable to simulation validation; reviews the legal prescriptions, and the administrative and procedural activities related to simulation validation; presents examples of best practice that demonstrate how methods of validation are applied in various disciplines and with different types of simulation models; covers important practical challenges faced by simulation scientists when applying validation methods and techniques; offers a selection of general philosophical reflections that explore the significance of validation from a broader perspective. This truly interdisciplinary handbook will appeal to a broad audience, from professional scientists spanning all natural and social sciences, to young scholars new to research with computer simulations. Philosophers of science, and methodologists seeking to increase their understanding of simulation validation, will also find much to benefit from in the text.
Author : R.K. Smith
Publisher : Springer Science & Business Media
Page : 518 pages
File Size : 53,7 Mb
Release : 1997-11-30
Category : Science
ISBN : 0792348680
An up-to-date summary of our understanding of the dynamics and thermodynamics of moist atmospheric convection, with a strong focus on recent developments in the field. The book also reviews ways in which moist convection may be parameterised in large-scale numerical models - a field in which there is still some controversy - and discusses the implications of convection for large-scale flow. Audience: The book is aimed at the graduate level and research meteorologists as well as scientists in other disciplines who need to know more about moist convection and its representation in numerical models.
