Parameterization Schemes
Title | Parameterization Schemes PDF eBook |
Author | David J. Stensrud |
Publisher | Cambridge University Press |
Pages | 408 |
Release | 2007-05-03 |
Genre | Science |
ISBN | 0521865409 |
Contents: 1.
Parameterization Schemes
Title | Parameterization Schemes PDF eBook |
Author | David J. Stensrud |
Publisher | Cambridge University Press |
Pages | 0 |
Release | 2009-12-03 |
Genre | Science |
ISBN | 9780521126762 |
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.
Diagnostics for and Evaluations of New Physical Parameterization Schemes for Global NWP Models
Title | Diagnostics for and Evaluations of New Physical Parameterization Schemes for Global NWP Models PDF eBook |
Author | Chien-Hsiung Yang |
Publisher | |
Pages | 284 |
Release | 1990 |
Genre | Atmospheric models |
ISBN |
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.
Diagnostics for and Evaluations of New Physical Parameterization Schemes for Global NWP Models
Title | Diagnostics for and Evaluations of New Physical Parameterization Schemes for Global NWP Models PDF eBook |
Author | |
Publisher | |
Pages | 282 |
Release | 1990 |
Genre | Atmospheric physics |
ISBN |
Parameterization Schemes
Title | Parameterization Schemes PDF eBook |
Author | David J. Stensrud |
Publisher | Cambridge University Press |
Pages | 594 |
Release | 2009-12-03 |
Genre | Science |
ISBN | 1107469651 |
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.
The Representation of Cumulus Convection in Numerical Models
Title | The Representation of Cumulus Convection in Numerical Models PDF eBook |
Author | Kerry Emanuel |
Publisher | Springer |
Pages | 242 |
Release | 2015-03-30 |
Genre | Science |
ISBN | 1935704133 |
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.
On Shallow Cumulus Parameterization Schemes for General Circulation Model Planetary Boundary Layers
Title | On Shallow Cumulus Parameterization Schemes for General Circulation Model Planetary Boundary Layers PDF eBook |
Author | Jui-Lin Frank Li |
Publisher | |
Pages | 448 |
Release | 1994 |
Genre | |
ISBN |