The numerical modelling of storm surges in the Bay of Bengal
作者:
B. Johns,
M. Anwar Ali,
期刊:
Quarterly Journal of the Royal Meteorological Society
(WILEY Available online 1980)
卷期:
Volume 106,
issue 447
页码: 1-18
ISSN:0035-9009
年代: 1980
DOI:10.1002/qj.49710644702
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractA numerical model is developed for the simulation of surges generated by a tropical cyclone in the Bay of Bengal. The analysis area extends from approximately 11°N to 22°N and, in the northeastern sector of the Bay, includes a representation of the Ganges‐Brahmaputra‐Meghna river system in Bangladesh. The extent of the analysis area allows three days of the surge‐generating capacity of a cyclone originating in the southern Indian Ocean to be recorded before landfall at the Bangladesh coast. The incorporation of the river system permits a potentially deep inland penetration of surges originating in the Bay. The model is non‐linear and this allows a determination of the interactive effect between surge and the astronomical tide. Numerical experiments are described that relate to the change in surge response resulting from a change in the cyclone track during the 24 hours preceding landfall. An account is given of the interaction between surge and tide in the Bay and the riv
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