Issue |
BIO Web Conf.
Volume 155, 2025
10th-ICCC – 10th International Conference on Climate Change “Climate Change, Plant and Health”
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Article Number | 03001 | |
Number of page(s) | 8 | |
Section | Climate Model and Uneven Precipitation Distribution | |
DOI | https://doi.org/10.1051/bioconf/202515503001 | |
Published online | 29 January 2025 |
The effect of rainfall centroid position on lead time in the upstream Citarum River
1 Civil Engineering, Gorontalo State University, Engineering Faculty Building, Prof. Ing. B.J. Habibie Street, Moutong, Tilongkabila, Bone Bolango, Gorontalo 96119
2 Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, FTSL Building, Ganesa Street, Number 10, Bandung 40132, West Java, Indonesia
3 Water Resources Development Center, Bandung Institute of Technology, Ganesa Street, Number 10, Bandung 40132, West Java, Indonesia
* Corresponding author: aristiayuningsi@ung.ac.id
Flood early warning systems (FEWS) are essential for flood risk, particularly in flood prone areas such as Majalaya and Sapan in the Upper Citarum River (UCR). The primary objective in the development of a FEWS is to accurately predict the lead time. This study hypothesized a positive correlation between the distance of the rainfall centroid and lead time. To analyse this hypothesis, using Global Satellite Mapping of Precipitation (GSMaP) data, observation rainfall data, water level, and discharge processed using R Studio. Rainfall centroid is extracted from the raster data and corrected with rainfall correction to obtain the rainfall centroid point. The result is the effect of rainfall centroid, and the lead time differences in this case cannot be proven. The findings suggest that the spatial and temporal distribution of rainfall is highly random. The analysis revealed that, at any given moment, the rainfall centroid is consistently situated at the centre of the Majalaya and Sapan watersheds. Although the proposed hypothesis does not fully match the results, this finding provides new insights into the rainfall centroid and underscores the need for further study to understand the factors that influence the lead time for the FEWS.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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