Development Of Rainfall Intensity Duration Frequency for Java Island

DOI

10.2991/978-94-6463-475-4_18How to use a DOI?

Keywords

Flood; Mononobe; SIG

Abstract

Climate change occurring in Java Island as a result of weather anomalies (La Nina) has led to more intense rainfall and higher frequencies compared to normal conditions. Phenomena perceived as extreme weather in a particular region or area can disrupt and pose a threat to water resource infrastructure, such as urban drainage networks. One optimal mitigation step that can be taken is when hydrological analysis and design are conducted using Intensity-Duration-Frequency (IDF) analysis derived from high-quality rainfall data. Developing IDF curves for future climates can be more challenging, especially for ungauged basins. This research aims to obtain rainfall intensity-duration-frequency data from 33 rain gauge stations on Java Island. The research methodology involved analyzing rainfall intensity using the Mononobe equation for various durations and return periods and then creating rainfall intensity maps (isohyets) using ArcGIS. This study’s rainfall data series used in the frequency analysis is the annual maximum series. The rainfall frequency distribution chosen in this study is a Log Pearson III distribution. A total of six different durations ranging 5 minutes to 60 minutes for return period of 5 years were analyzed. The study results show that 90.9% of the daily rainfall in Java Island is in the medium category, and 9.1% is in the high category. This study indicates that rainfall intensity data from climatological rainfall stations that do not meet the hydrological criteria can be found by interpolating rainfall intensity maps from the nearest rain climatology station that meet the hydrological analysis criteria.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - S. Susilowati
AU  - S. A. Edo Ganang
AU  - Antonius Situmorang
AU  - Maulana Mansur
PY  - 2024
DA  - 2024/08/02
TI  - Development Of Rainfall Intensity Duration Frequency for Java Island
BT  - Proceedings of the 1st International Conference on Industry Science Technology and Sustainability (IConISTS 2023)
PB  - Atlantis Press
SP  - 206
EP  - 216
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-475-4_18
DO  - 10.2991/978-94-6463-475-4_18
ID  - Susilowati2024
ER  -