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The Physics and Parameterization of Moist Atmospheric Convection

The Physics and Parameterization of Moist Atmospheric Convection
Author: R.K. Smith
Publisher: Springer Science & Business Media
Total Pages: 499
Release: 2013-04-17
Genre: Science
ISBN: 9401588287

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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.


Parameterization Of Atmospheric Convection (In 2 Volumes)

Parameterization Of Atmospheric Convection (In 2 Volumes)
Author: Robert S Plant
Publisher: World Scientific
Total Pages: 1169
Release: 2015-08-21
Genre: Technology & Engineering
ISBN: 1783266929

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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.


Atmospheric Convection

Atmospheric Convection
Author: Kerry A. Emanuel
Publisher: Oxford University Press, USA
Total Pages: 598
Release: 1994
Genre: Nature
ISBN: 9780195066302

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"[A]n excellent monograph by a leading atmospheric scientist...will be consulted by everyone interested in the complexities of dynamical meteorology and in the improvement of practical methods of climate and weather prediction."--Physics Today


Parameterization of Atmospheric Convection: Current issues and new theories

Parameterization of Atmospheric Convection: Current issues and new theories
Author: Robert S. Plant
Publisher:
Total Pages:
Release: 2016
Genre: Atmospheric physics
ISBN:

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"This two-volume set combines theoretical and statistical physics ideas on convective parameterization with a wealth of information on the practical and operational use of parameterizations in weather forecast and climate models. The motivation for this approach is the assumption that future advances in the subject are most likely to arise from the application of theoretical concepts to practical problems, a feeling within the community that has led to the EU-funded COST Action investigative project. Contributors to the book are leading participants in Action, all of whom have devoted much attention over the last few years to building up a thorough knowledge of both theory and practice. Parameterization of Atmospheric Convection intends to equip theoretically oriented scientists with a firm grasp of the important practical issues, and vice versa to equip application-oriented scientists with a firm grasp of the important theoretical tools. 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 the principles and practice of parameterization, this two-volume set is the definitive reference point for current atmospheric scientists and modellers working on such problems"--Provided by publisher.


Geophysical Convection Dynamics

Geophysical Convection Dynamics
Author: Jun-Ichi Yano
Publisher: Elsevier
Total Pages: 304
Release: 2023-05-08
Genre: Science
ISBN: 0323998011

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Geophysical Convection Dynamics, Volume Five provides a single source reference that enables researchers to go through the basics of geophysical convection. The book includes basics on the dynamics of convection, including linear stability analysis, weakly nonlinear theory, effect of rotation, and double diffusion. In addition, it includes detailed descriptions of fully developed turbulence in well-mixed boundary layers, a hypothesis of vertical homogeneity, effects of moisture, and the formation of clouds. The book focuses on the presentation of the theoretical methodologies for studying convection dynamics with an emphasis on geophysical application that is relevant to fields across the earth and environmental sciences, chemistry and engineering. Guides and prepares early-stage researchers to plunge directly into research Provides a synthesis of the existing literature on topics including linear stability analysis, weakly nonlinear theory, effect of rotation, double diffusion, description of fully developed turbulence in well-mixed boundary layers, hypothesis of vertical homogeneity, effects of moisture, formation of clouds at the top, and cloud-top entrainment instability Presents geophysical convection to readers as a common problem spanning the atmosphere, oceans, and the Earth's mantle


Refinement and Testing of the Moist Convection Parameterization in the GL Global Spectral Model

Refinement and Testing of the Moist Convection Parameterization in the GL Global Spectral Model
Author: Donald C. Norquist
Publisher:
Total Pages: 0
Release: 1990
Genre: Computer programs
ISBN:

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An evaluation of the original version of the advanced physics moist convection parameterization revealed excessive heating and precipitation being produced by the scheme within the global spectral model. This report describes a series of corrections and modifications made to the parameterization software to improve its performance. Forecast experiments were conducted to determine the effectiveness of each modification. Turning off the entrainment formulation, using a newly developed scheme for computing the lifting condensation level and moist adiabat, employing a center-difference scheme for computing moisture convergence, and allowing evaporation of falling precipitation in the cloudy portion of the grid box yielded the most realistic convective heating and precipitation. This version of the convective scheme was used in a series of 10- day global spectral model forecasts. Global and zonal average distributions of precipitation agreed well with climatological estimates for the same months. Although the modified version of the scheme resulted in substantially reduced convective precipitation, it still produced more than was observed in areas of high climatological rainfall. In the tropics, the modified convective scheme produces too much precipitation in areas characterized by heavy precipitation, and not enough precipitation in the more arid regions. In the extratropics, wintertime convection downstream from continents (typically involved in cyclogenesis) was simulated by the model. Summertime convection over the United States was characterized by too little precipitation in the typically convectively active areas, and too much in the more convectively stable regions of the country.


The Representation of Cumulus Convection in Numerical Models

The Representation of Cumulus Convection in Numerical Models
Author: Kerry Emanuel
Publisher: Springer
Total Pages: 242
Release: 2015-03-30
Genre: Science
ISBN: 1935704133

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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.


Current Trends in the Representation of Physical Processes in Weather and Climate Models

Current Trends in the Representation of Physical Processes in Weather and Climate Models
Author: David A. Randall
Publisher: Springer
Total Pages: 372
Release: 2019-01-31
Genre: Science
ISBN: 9811333963

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This book focuses on the development of physical parameterization over the last 2 to 3 decades and provides a roadmap for its future development. It covers important physical processes: convection, clouds, radiation, land-surface, and the orographic effect. The improvement of numerical models for predicting weather and climate at a variety of places and times has progressed globally. However, there are still several challenging areas, which need to be addressed with a better understanding of physical processes based on observations, and to subsequently be taken into account by means of improved parameterization. And this is all the more important since models are increasingly being used at higher horizontal and vertical resolutions. Encouraging debate on the cloud-resolving approach or the hybrid approach with parameterized convection and grid-scale cloud microphysics and its impact on models’ intrinsic predictability, the book offers a motivating reference guide for all researchers whose work involves physical parameterization problems and numerical models.


Shallow Clouds, Water Vapor, Circulation, and Climate Sensitivity

Shallow Clouds, Water Vapor, Circulation, and Climate Sensitivity
Author: Robert Pincus
Publisher: Springer
Total Pages: 396
Release: 2018-05-29
Genre: Science
ISBN: 3319772732

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This volume presents a series of overview articles arising from a workshop exploring the links among shallow clouds, water vapor, circulation, and climate sensitivity. It provides a state-of-the art synthesis of understanding about the coupling of clouds and water vapor to the large-scale circulation. The emphasis is on two phenomena, namely the self-aggregation of deep convection and interactions between low clouds and the large-scale environment, with direct links to the sensitivity of climate to radiative perturbations. Each subject is approached using simulations, observations, and synthesizing theory; particular attention is paid to opportunities offered by new remote-sensing technologies, some still prospective. The collection provides a thorough grounding in topics representing one of the World Climate Research Program’s Grand Challenges. Previously published in Surveys in Geophysics, Volume 38, Issue 6, 2017 The aritcles “Observing Convective Aggregation”, “An Observational View of Relationships Between Moisture Aggregation, Cloud, and Radiative Heating Profiles”, “Implications of Warm Rain in Shallow Cumulus and Congestus Clouds for Large-Scale Circulations”, “A Survey of Precipitation-Induced Atmospheric Cold Pools over Oceans and Their Interactions with the Larger-Scale Environment”, “Low-Cloud Feedbacks from Cloud-Controlling Factors: A Review”, “Mechanisms and Model Diversity of Trade-Wind Shallow Cumulus Cloud Feedbacks: A Review”, “Structure and Dynamical Influence of Water Vapor in the Lower Tropical Troposphere”, “Emerging Technologies and Synergies for Airborne and Space-Based Measurements of Water Vapor Profiles”, “Observational Constraints on Cloud Feedbacks: The Role of Active Satellite Sensors”, and “EUREC4A: A Field Campaign to Elucidate the Couplings Between Clouds, Convection and Circulation” are available as open access articles under a CC BY 4.0 license at link.springer.com.