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
- 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
- 44 Storm-surge prediction using numerical models
- 45 Numerical simulation of storm surges in the Bay of Bengal
- 46 Flood stage forecasting in rivers
- Index
44 - Storm-surge prediction using numerical models
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
- 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
- 44 Storm-surge prediction using numerical models
- 45 Numerical simulation of storm surges in the Bay of Bengal
- 46 Flood stage forecasting in rivers
- Index
Summary
In recent years, a new system for the prediction of storm surges in the North Sea has been under development at the Institute of Oceanographic Sciences (IOS) Bidston. The scheme is based on the use of dynamical finite-difference models of the atmosphere and of the sea. The atmospheric model, the Bushby–Timpson 10-level model on a fine mesh, used in routine weather prediction at the Meteorological Office, provides the essential forecasts of meteorological data which are then used in sea-model calculations to compute the associated storm surge. The basic sea model, having a coarse mesh, covers the entire sea areas surrounding the British Isles. Additional models giving improved resolution in areas of special interest are also under development. The scheme has been operational since the autumn of 1978.
This chapter outlines the scheme and indicates those factors found to be of particular importance. Some points of difference between the storm surge problem in the North Sea and in the Bay of Bengal are also discussed.
Introduction
Since the pioneering work of Richardson in the 1920s, numerical methods have been used increasingly to solve the equations governing the motion of the atmosphere and the sea. During the 1960s atmospheric models were put to work in operational weather prediction, and their use and development has continued up to the present. Similar developments have taken place in oceanography, where models have been used to investigate motion in oceans and shelf seas.
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- Monsoon Dynamics , pp. 659 - 688Publisher: Cambridge University PressPrint publication year: 1981
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