The Selection of Rain Distribution Analysis Method in (Bengawan Solo Watershed)Downstream Sub-Watershed
Dina Limbong Pamuttu, Umboro Lasminto, Daud Andang Pasalli, Yuli Helena Margaritha Rada, Abner Doloksaribu
Dina Limbong Pamuttu
Available Online December 2018.
- https://doi.org/10.2991/icst-18.2018.87How to use a DOI?
- Downstream Sub Watershed of Bengawan Solo; Chi-Square; Smirnov Kolmogorov; Distribution Analysis
- Hydrological factor causes flood. Thus, it needs to be examined through rain frequency analysis by using continuous chance distribution. The location of this research is at the downstream sub-watershed of Bengawan Solo River. Average rainfall inflow area is calculated by Polygon Thiessen method with 19 (nineteen) different areas depending on the distribution of rain in each station. Frequency distribution analysis and its suitability test uses 2 instruments which are a Smirnov-Kolmogorof test and Chi-Square Test. The used distribution applications are Normal Distribution, Normal Log Distribution, Gumbel Distribution and Pearson III Log Distribution. The result of Chi-Square for normal and log normal distributions is 3,833, also Gumbel and log Pearson III distribution in amount of 1,333. The result of Smirnov-Kolmogorov for Dcritical normal distribution = 0,172, Dcritical normal log = 0,154, Dcritical Gumbel distribution = 0,119 and Dcritical log Pearson III distribution = 0,101. The four distributions are accepted but the best distribution is log Pearson III distribution.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Dina Limbong Pamuttu AU - Umboro Lasminto AU - Daud Andang Pasalli AU - Yuli Helena Margaritha Rada AU - Abner Doloksaribu PY - 2018/12 DA - 2018/12 TI - The Selection of Rain Distribution Analysis Method in (Bengawan Solo Watershed)Downstream Sub-Watershed BT - Proceedings of the International Conference on Science and Technology (ICST 2018) PB - Atlantis Press SP - 416 EP - 420 SN - 2589-4943 UR - https://doi.org/10.2991/icst-18.2018.87 DO - https://doi.org/10.2991/icst-18.2018.87 ID - Pamuttu2018/12 ER -