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Research Paper | Civil Engineering | Volume 10 Issue 2, February 2021 | Pages: 943 - 946 | Indonesia
Analysis of Flash Floods Behaviors in Sentani, Jayapura Regency, Papua
Abstract: Flash floods are flows in very large numbers and occur suddenly, flowing from the upstream to the downstream at a very high speed. This study aims to analyze the parameters that influence the occurrence of flash floods in Sentani and to analyze flood behavior Kemiri river and Flafouw river. Hydrological analysis based on maximum daily rainfall data for the last 10 years (2009-2019), and hydraulic analysis on secondary and primary tertiary channels (S. Kemiri) on river geometry then simulated by modeling using HEC-RAS software to calculate one-dimensional water level profiles, in each section of the Kemiri river. The planned flood discharge using the Nakayasu method obtained Q10th = 51.798 m3/s kemiri river with t = 1.615 hours while the Flafouw Q10th river = 94.804 m3/s and t = 1.669 hours. The flood inundation when the disaster occurred was 1.00 - 4.00 meters with inundation time
Keywords: Flash flood, hydrologic/hydraulic, Kemiri River, Papua
How to Cite?: Mujiati, David, Harmonis Rante, "Analysis of Flash Floods Behaviors in Sentani, Jayapura Regency, Papua", Volume 10 Issue 2, February 2021, International Journal of Science and Research (IJSR), Pages: 943-946, https://www.ijsr.net/getabstract.php?paperid=SR21212115559, DOI: https://dx.doi.org/10.21275/SR21212115559