Analysis of Design Flood Discharge Based on Measured Rainfall Data and Satellite Rainfall Data in Tukad Petanu Watershed, Gianyar Regency
- DOI
- 10.2991/978-94-6463-587-4_35How to use a DOI?
- Keywords
- Flood; Hydrograph; Measured Rain; Satellite
- Abstract
Design flood discharge analysis is required in the planning of water structures in a watershed. The unit hydrograph method is commonly used in designing flood discharge calculations that require rainfall data in the analysis. Current technology makes it possible to use satellite data as an alternative to data from rain gauge stations whose distribution is very limited. The rainfall data used in this study uses measured rainfall data from rain gauge stations and the PERSIANN satellite. The calculation results from both data will then be validated with the river flood discharge recorded at the Tukad Petanu Hulu AWLR Station and see the suitability. This research shows that the amount of design flood discharge in Tukad Petanu watershed analyzed using Nakayasu SUH based on measured rainfall data for 5, 10, 25, 50, and 100-year return periods is 58.16 m3/sec, 67.99 m3/sec, 82.76 m3/sec, 95.88 m3/sec, and 110.81 m3/sec, while based on PERSIANN satellite rainfall data for the same return period of 77.19 m3/sec, 83.64 m3/sec, 90.62 m3/sec, 94.84 m3/sec, and 98.51 m3/sec, respectively. The design flood discharge in the Tukad Petanu watershed based on measured discharge data at the Tukad Petanu Hulu AWLR Station for the same return period is 15.75 m3/sec, 24.94 m3/sec, 42.47 m3/sec, 61.28 m3/sec, and 86.63 m3/sec, respectively. The level of conformity of the design flood discharge generated by the Nakayasu Method using measured rainfall data and the PERSIANN satellite has a higher value than the discharge data at the AWLR Station for all return times.
- 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.
Cite this article
TY - CONF AU - I Gusti Ngurah Kade Mahesa Adi Wardana AU - I Gusti Lanang Made Parwita AU - I Nyoman Anom Purwa Winaya AU - Yuliana Sukarmawati PY - 2024 DA - 2024/12/01 TI - Analysis of Design Flood Discharge Based on Measured Rainfall Data and Satellite Rainfall Data in Tukad Petanu Watershed, Gianyar Regency BT - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2024 (ICoSTAS-EAS 2024) PB - Atlantis Press SP - 302 EP - 312 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-587-4_35 DO - 10.2991/978-94-6463-587-4_35 ID - Wardana2024 ER -