ANALISIS CURAH HUJAN UNTUK MEMBUAT KURVA INTENSITY-DURATION-FREQUENCY (IDF) PADA SUB DAS METRO
DOI:
https://doi.org/10.22219/jmts.v11i1.2824Keywords:
duration, frequency, rainfall intensity.Abstract
Ernawan S.1) , Yuda Al Qadr Latief2)
1,2) Jurusan Teknik Sipil Universitas Muhammadiyah Malang
Alamat korespondensi : Jl. Raya Tlogomas 246 Malang 65144
Abstract
Hydrological conditions in Indonesia and elsewhere is typical, so not all the way and all the concepts can be used to solve the problem of hydrology in Indonesia, especially in the Upstream Brantas River precisely in Sub Watershed of Metro. Rain is an important input component in the hydrological processes. Rainfall characteristics of which are the intensity, duration, depth, and frequency. Intensity related to the duration and frequency can be expressed by curves Intensity-Duration-Frequency (IDF). IDF curves can be used to calculate
flood plan to use a rational method.
In this study, daily rainfall calculated by frequency analysis begins by determining the mean maximum daily rainfall, then calculate statistical parameter to choose the most suitable distribution. The time is long dominant rainfall event with the greatest frequency of rain events. The intensity is calculated by using the data of observation.
Based on the analysis of the frequency of the rain turns to design return period 2, 5, 10, 20, 50 and 100 years in a row is 49; 70; 86; 111; 132 and 155 mm. The results showed that the amount of time the dominant rain events between 4-8 hours. IDF curves in sub watershed of Metro based on the data observations generally showed a pattern where the rainfall is always preceded by a high intensity then progressively decreases. Besides the greater the return period tend to have higher rainfall intensity. The results of this research could be
developed even if it may be modified in accordance with the specific conditions sub
watershed of Metro.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2013 Ir. Ernawan S, MT, Yuda Al Qadr Latief
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
MEDIA TEKNIK SIPIL Journal
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.