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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Operations Research: International Conference Series Jurnal Edukasi Pengabdian Masyarakat: EDUABDIMAS
Wiliya, Wiliya
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Religion Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science Mathematics

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Determination of North Sulawesi Agricultural Insurance Premiums Based on Rainfall Index Using the Black-Scholes Model Novianti, Saqila; Nugraha, Dwita Safira; Wiliya, Wiliya
Operations Research: International Conference Series Vol. 2 No. 1 (2021): Operations Research International Conference Series (ORICS), March 2021
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v2i1.156

Abstract

This article discusses the use of the Black Scholes model to calculate insurance premium prices based on the rainfall index. The Black Scholes model is one of the models used to determine option prices. The research method used is to study the material through mathematics journals and collect data. The data used in this study are rainfall data and rice production data in North Sulawesi from 2018 to 2020. Based on the results and discussion, the quarterly rainfall data that has a strong correlation is the third quarter rainfall. At the 5th percentile, the third quarter rainfall data is 450.22 mm. For the latest rainfall data size (450.22 mm) the premium obtained is IDR 231,912.09. From the calculation results, the higher the value for both sizes, the greater.
Analisis Indeks Kekeringan Menggunakan Teori Run Pada Daerah Aliran Sungai Palambayan Wiliya, Wiliya; Fauzi, Manyuk; Sutikno, Sigit
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Drought is the decrease in the amount of rainfall from its normal condition and depends on how long it lasts. This study aims to determine the characteristics of drought that occurs in the longest duration of drought and the largest number of drought in the location of rain stations spread in Palambayan basin. Then can be used as early warning of drought disaster and help for the interest of planning design at Palambayan watershed. The method used to analyze drought is Run Theory method. The location of the study was in the Palambayan Basin of West Sumatra Province. The data used are monthly rainfall for 10 years (2007-2016) from 2 rain stations located in the Palambayan River Basin and 1 Rain Station located outside the Palambayan River Basin. The results showed that the largest cumulative drought occurred in 2008 of 283.49 mm at Muaro Tantang rain station. For the longest duration of drought is 9 months in 2009. Based on the result of drought distribution map using Geographic Informaton System (GIS), the worst drought station is Gumarang Station.Keywords: Drought Analysis, Run Theory, Drought Index
PENINGKATAN LITERASI BENCANA HIDROMETEOROLOGI DALAM MEMBENTUK GENERASI MUDA SADAR LINGKUNGAN DI SMAN 17 PADANG Stiyanto, Eri; Wiliya, Wiliya; Nurfaijah, Nurfaijah; Putra, Ronny Eka; Hanwar, Suhendrik
Jurnal Edukasi Pengabdian Masyarakat Vol 5 No 2 (2026): APRIL 2026
Publisher : FIP UNIRA MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36636/eduabdimas.v5i2.9364

Abstract

The technical understanding of the younger generation regarding hydrometeorological disaster mitigation remains low despite their high concern for the climate crisis. The Aie Pacah area in Padang has a high flood risk due to land conversion, which peaked during the massive flood in November 2025. Students of SMAN 17 Padang in this area are both a vulnerable group and future policy makers. This Community Service (PkM) program aims to improve students' disaster literacy through interactive visual education, including water cycle animations and land cover satellite imagery. Evaluation was measured using a Pre-Test and Post-Test. Data analysis of 30 participants using the Paired Sample T-Test showed a significant increase in understanding (Sig. 0,000 < 0,05) with an average margin increase of 30,70 points. Furthermore, the N-Gain Score test reached 0,722 (high category), proving that this digital visual education method is effective. This activity successfully corrected students' perceptions that floods are often triggered by human actions, providing them with a basic foundation to support Disaster Risk Reduction (DRR) policies in the future.
Co-Authors Eri Stiyanto Fauzi, Manyuk Novianti, Saqila Nugraha, Dwita Safira Nurfaijah, Nurfaijah Putra, Ronny Eka Suhendrik Hanwar Sutikno, Sigit