Design rainfall temporal patterns for upper Klang catchment
Rainfall temporal patterns are needed as inputs for hydrologic models such as unit hydrograph or runoff routing method used in the derivation of flood hydrographs. The patterns adopted can have a major effect on the resulting flood computed. Short and long duration rainfall data are both required fo...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Institution of Engineers, Malaysia
2018
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/82871/7/82871%20Design%20rainfall%20temporal%20patterns.pdf |
| _version_ | 1825653494578675712 |
|---|---|
| author | Hong, Jer Lang Md Jafri, Azmi Ibrahim, Izihan Shafie, Suzana Hong, Kee An Naubi, Irena |
| author_facet | Hong, Jer Lang Md Jafri, Azmi Ibrahim, Izihan Shafie, Suzana Hong, Kee An Naubi, Irena |
| author_sort | Hong, Jer Lang |
| collection | IIUM |
| description | Rainfall temporal patterns are needed as inputs for hydrologic models such as unit hydrograph or runoff routing method used in the derivation of flood hydrographs. The patterns adopted can have a major effect on the resulting flood computed. Short and long duration rainfall data are both required for different sizes of catchments to determine and locate the flood producing critical storms in flood estimation. Design temporal patterns with different durations are therefore also required for distributing the storm rainfall in flood calculations. Patterns for a large number of durations with reasonably short time intervals are needed by designers to reduce the need for interpolation and to maintain the accuracy in obtaining the peak of the hydrograph. In this study, pluviograph data for the Upper Klang Catchment with records of over 30 years are used to derive
temporal patterns for 20 standard durations as per ARR87. Rainfall temporal patterns for the upper Klang were derived for rainfall durations from 10 minutes to 72 hours and for time intervals from 5 minutes to 4 hours. The patterns presented in this study demonstrate the use of Average Variability Method in deriving design rainfall temporal patterns for data of the Klang Catchment and the patterns derived can be used for design flood estimations for catchments in the same general region. |
| first_indexed | 2024-03-06T00:50:38Z |
| format | Article |
| id | oai:generic.eprints.org:82871 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-06T00:50:38Z |
| publishDate | 2018 |
| publisher | The Institution of Engineers, Malaysia |
| record_format | dspace |
| spelling | oai:generic.eprints.org:828712021-08-03T07:51:16Z http://irep.iium.edu.my/82871/ Design rainfall temporal patterns for upper Klang catchment Hong, Jer Lang Md Jafri, Azmi Ibrahim, Izihan Shafie, Suzana Hong, Kee An Naubi, Irena TA170 Environmental engineering. Sustainable engineering TA329 Engineering mathematics. Engineering analysis TC401 River, lake, and water-supply engineering (General) TH6014 Environmental engineering. Rainfall temporal patterns are needed as inputs for hydrologic models such as unit hydrograph or runoff routing method used in the derivation of flood hydrographs. The patterns adopted can have a major effect on the resulting flood computed. Short and long duration rainfall data are both required for different sizes of catchments to determine and locate the flood producing critical storms in flood estimation. Design temporal patterns with different durations are therefore also required for distributing the storm rainfall in flood calculations. Patterns for a large number of durations with reasonably short time intervals are needed by designers to reduce the need for interpolation and to maintain the accuracy in obtaining the peak of the hydrograph. In this study, pluviograph data for the Upper Klang Catchment with records of over 30 years are used to derive temporal patterns for 20 standard durations as per ARR87. Rainfall temporal patterns for the upper Klang were derived for rainfall durations from 10 minutes to 72 hours and for time intervals from 5 minutes to 4 hours. The patterns presented in this study demonstrate the use of Average Variability Method in deriving design rainfall temporal patterns for data of the Klang Catchment and the patterns derived can be used for design flood estimations for catchments in the same general region. The Institution of Engineers, Malaysia 2018-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/82871/7/82871%20Design%20rainfall%20temporal%20patterns.pdf Hong, Jer Lang and Md Jafri, Azmi and Ibrahim, Izihan and Shafie, Suzana and Hong, Kee An and Naubi, Irena (2018) Design rainfall temporal patterns for upper Klang catchment. The Journal of the Institution of Engineers, Malaysia, 79 (1). pp. 21-30. ISSN 0126-513X https://iemjournal.com.my/index.php/iem/article/view/5/5 |
| spellingShingle | TA170 Environmental engineering. Sustainable engineering TA329 Engineering mathematics. Engineering analysis TC401 River, lake, and water-supply engineering (General) TH6014 Environmental engineering. Hong, Jer Lang Md Jafri, Azmi Ibrahim, Izihan Shafie, Suzana Hong, Kee An Naubi, Irena Design rainfall temporal patterns for upper Klang catchment |
| title | Design rainfall temporal patterns for upper Klang catchment |
| title_full | Design rainfall temporal patterns for upper Klang catchment |
| title_fullStr | Design rainfall temporal patterns for upper Klang catchment |
| title_full_unstemmed | Design rainfall temporal patterns for upper Klang catchment |
| title_short | Design rainfall temporal patterns for upper Klang catchment |
| title_sort | design rainfall temporal patterns for upper klang catchment |
| topic | TA170 Environmental engineering. Sustainable engineering TA329 Engineering mathematics. Engineering analysis TC401 River, lake, and water-supply engineering (General) TH6014 Environmental engineering. |
| url | http://irep.iium.edu.my/82871/7/82871%20Design%20rainfall%20temporal%20patterns.pdf |
| work_keys_str_mv | AT hongjerlang designrainfalltemporalpatternsforupperklangcatchment AT mdjafriazmi designrainfalltemporalpatternsforupperklangcatchment AT ibrahimizihan designrainfalltemporalpatternsforupperklangcatchment AT shafiesuzana designrainfalltemporalpatternsforupperklangcatchment AT hongkeean designrainfalltemporalpatternsforupperklangcatchment AT naubiirena designrainfalltemporalpatternsforupperklangcatchment |