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Design Water Levels in Tidal River Systems under the Influence of Typhoons
Author(s) -
WEBSTER P.,
WARDLAW R. B.
Publication year - 1993
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1993.tb00850.x
Subject(s) - typhoon , environmental science , fluvial , drainage basin , hydrology (agriculture) , tidal river , structural basin , meteorology , geology , climatology , oceanography , geotechnical engineering , geomorphology , geography , estuary , cartography
Water levels in tidal rivers are subject to the influence of both fluvial and tidal factors. The interaction between these factors is rendered more complex in regions affected by typhoons, which typically result in the combined occurrence of heavy rainfall and high sea levels. Previous studies have outlined an analytical approach for calculating design water levels based on dividing the fluvial and tidal series into a typhoon and a non‐typhoon component. This paper illustrates the steps involved in the analytical approach and describes its application to drainage basins in Hong Kong. The approach provides a practical means for calculating design water levels, and is recommended for final design purposes. The results of using the full analysis may be approximated by using a sub‐set of analytical results, and should prove satisfactory for the purposes of outline design.