Journal
ARABIAN JOURNAL OF GEOSCIENCES
Volume 7, Issue 10, Pages 4387-4398Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s12517-013-1102-3
Keywords
Rainfall patterns; Dimensionless hyetograph; Design storm; Kingdom of Saudi Arabia; Arid zone
Categories
Funding
- Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah [7-155-D1432]
- DSR
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This paper presents the derivation of the design storm hyetograph patterns for the Kingdom of Saudi Arabia based on real rainfall events from meteorological stations distributed throughout the Kingdom. Two thousand twenty-seven rainfall storms for a 20-28-year period were collected and analyzed covering 13 regions of the Kingdom. Four distinct dimensionless rainfall hyetograph patterns have been obtained over the Kingdom, while two patterns have been obtained for each individual region because of the lack of data for long-duration storms in individual regions. The resulting dimensionless rainfall patterns for each region can be used to develop storm hyetographs for any design duration, total rainfall depth and return period. It has been shown that the developed storm hyetographs have different features from other storm patterns that are commonly used in arid zones. The study recommends using these curves for the design of hydraulic structures in Kingdom of Saudi Arabia and regions alike.
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