Book contents
- Frontmatter
- Contents
- Contributors
- Editors' preface
- Keynote address to the 1977 Symposium SIR JAMES LIGHTHILL
- Part I The large-scale climatology of the tropical atmosphere
- 1 Teleconnections of rainfall anomalies in the tropics and subtropics
- 2 Northern summer planetary-scale monsoons during drought and normal rainfall months
- 3 The annual oscillation of the tropospheric temperature in the northern hemisphere
- 4 Summer mean energetics for standing and transient eddies in the wavenumber domain
- 5 Monitoring the monsoon outflow from geosynchronous satellite data
- 6 Predictability of monsoons
- 7 A review of general-circulation model experiments on the Indian monsoon
- 8 Simulation of the Asian summer monsoon by an 11-layer general-circulation model
- 9 Analysis of monsoonal quasi-stationary systems as revealed in a real-data prediction experiment
- 10 A model of the seasonally varying planetary-scale monsoon
- 11 Wave interactions in the equatorial atmosphere – an analytical Study
- Part II The summer monsoon over the Indian subcontinent and East Africa
- Part III The physics and dynamics of the Indian Ocean during the summer monsoon
- Part IV Some important mathematical modelling techniques
- Part V Storm surges and flood forecasting
- Index
9 - Analysis of monsoonal quasi-stationary systems as revealed in a real-data prediction experiment
Published online by Cambridge University Press: 05 November 2011
- Frontmatter
- Contents
- Contributors
- Editors' preface
- Keynote address to the 1977 Symposium SIR JAMES LIGHTHILL
- Part I The large-scale climatology of the tropical atmosphere
- 1 Teleconnections of rainfall anomalies in the tropics and subtropics
- 2 Northern summer planetary-scale monsoons during drought and normal rainfall months
- 3 The annual oscillation of the tropospheric temperature in the northern hemisphere
- 4 Summer mean energetics for standing and transient eddies in the wavenumber domain
- 5 Monitoring the monsoon outflow from geosynchronous satellite data
- 6 Predictability of monsoons
- 7 A review of general-circulation model experiments on the Indian monsoon
- 8 Simulation of the Asian summer monsoon by an 11-layer general-circulation model
- 9 Analysis of monsoonal quasi-stationary systems as revealed in a real-data prediction experiment
- 10 A model of the seasonally varying planetary-scale monsoon
- 11 Wave interactions in the equatorial atmosphere – an analytical Study
- Part II The summer monsoon over the Indian subcontinent and East Africa
- Part III The physics and dynamics of the Indian Ocean during the summer monsoon
- Part IV Some important mathematical modelling techniques
- Part V Storm surges and flood forecasting
- Index
Summary
Using the results from a real-data medium-range (6-day) prediction experiment over the global tropics, the monsoonal subtropical quasi-stationary large-scale motion system is examined. Analyses of the structure and the barotropic and the baroclinic energetics in the wavenumber domain are performed and are contrasted with climatological observational studies. The mechanisms of the maintenance of the waves are discussed and the differing roles of each wave are stressed.
Introduction
A large number of observational and numerical studies have been carried out in recent years to investigate the general circulation of the tropical atmosphere. The observational studies were greatly affected by the recent development of a wide variety of global observational systems (satellite, aircraft, etc.). Most of these studies have dealt with regional or global monthly/seasonal mean analyses of the tropical flow fields (e.g., Aspliden et al., 1965; Flohn, 1971 and Newell et al., 1972) and provided characteristic mean features of the tropospheric motion fields. However, not many long sequences of daily analyses required for a quantitative investigation have ever been performed. Only two such studies are available (Krishnamurti and Rogers, 1970 and Krishnamurti et al., 1975). These studies provided daily analyses of the upper-tropospheric motion fields during northern summer seasons. More recently, it has been recognized that the analyses of the tropical motion fields prepared at the US National Meteorological Center (NMC) have been improved as a result of extensive data-gathering efforts and have become useful data sources.
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- Monsoon Dynamics , pp. 147 - 164Publisher: Cambridge University PressPrint publication year: 1981
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