1. Development of hydrological tools using extreme rainfall events for Dhaka, Bangladesh.
- Author
-
Ahammed, Faisal and Hewa, Guna Alankarage
- Subjects
- *
HYDROLOGIC models , *RAINFALL , *RAINFALL periodicity , *HYDRAULIC engineering - Abstract
Annual daily maximum rainfall data for 57 years (1953 to 2009) in Dhaka, Bangladesh are analysed statistically to prepare two hydrological tools: (1) probable return periods of extreme rainfall events, and (2) intensity-duration-frequency (IDF) curves. Limited availability of short-duration rainfall data leads to difficulties in performing the task through traditional approaches; hence, the Gumbel distribution function and scaling theory have been applied in preparing the probable return periods of extreme rainfall events and IDF curves, respectively. The outcomes of this paper can be used in better designing hydraulic structures in Bangladesh. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF