Frequency Analysis for Rainfall Design in Medan North Sumatra Indonesia
DOI:
https://doi.org/10.71131/99e9b754Abstract
Rainfall is an essential component of climatology that should be consistently analyzed over extended periods. Availability of complete rainfall data is one of the most important parts in relation to Hydrology and Water Resources. The ideal data is that in accordance with what is needed. However, in practice, incomplete records are often encountered, this can be caused by several things, including equipment damage, employee negligence, equipment replacement, and natural disaster. This situation causes certain parts of the time series data to contain empty data, it is necessary to pay attention to the pattern of the distribution of rain and the surrounding stations. In this paper, there are three rainfall stations analyzed, these are BBMKG Region I, Sampali station, and Belawan station. Unfortunately, there are two missing rainfall data in 2001 and 2006 in Belawan station. Therefore, this paper uses the Normal Ratio Method and the Inversed Square Distance Method to complete the rainfall data and compare the two methods. From the result, there are different values from the two methods, the value is smaller using the Normal Ratio Method. It can be caused by the influence of distance factors on inversed square distance.
Keywords:
Rainfal Analysis , Missing Rainfall Data , Rainfall DistributionDownloads
References
Basuki., Winarsih I., Adhyani N.L., (2009). “Analisis Periode Ulang Hujan Maksimum Dengan Berbagai Metode” BMKG
CIPTA KARYA, “Rencana Terpadu dan Program Investasi Infrastruktur Jangka Menengah (RPI2JM),” CIPTA KARYA
Chow V.T., Maidment D.R., Mays L.W.,(1988). “Applied Hydrology,” Mc.Graw-Hill Book Company, Singapore
Fauziyah S., Sorbiyah., Susilowati.,(2013) “Analisis Karakteristik dna Intensitas Hujan Kota Surakarta” Jurnal Matriks Teknik Sipil, Juni
Hidayat A,K., Empung.,(2016) “Analisis Curah Hujan Efektif dan Curah Hujan dengan Berbagai Periode Ulang Untuk Wilayah Kota Tasikmalaya dan Kabupaten Garut” Jurnal Siliwangi, , November
Lashari et.al.,(2017) “Analisa Distribusi Curah Hujan di Area Merapi Menggunakan Metode Aritmatika Dan Poligon” Jurnal Teknik Sipil dan Perencanaan
Moccia B et.al.,(2021) “Probability distribution of daily rainfall extremes in Lazio and Sicily, Italy, and design rainfall inferences” Journal of Hydrology: Regional Studies
Narulita I., Marganingrum D.,(2015) “Analisis Curah Hujan, Perubahan Tutupan Lahan, Penyusunan Kurva IDF untuk Analisis Peluang Banjir: Studi Kasus DAS Cerucuk, Pulau Belitung” Journal of Environment and Geological Hazards
Purwanto., Setiono., Hadiani R.,(2016) “Pengisian Data Hujan Yang Hilang Dengan Metode Arima” Seminar Nasional Sains dan Teknologi, November
Rizky H., Nasution Y N., Goejantoro R.,(2019) “ Analisis Data Hujan Yang Hilang Menggunakan Metode Inversed Square Distance,” Prosiding Seminar Nasional Matematika, Statistika, dan Aplikasinya
Sani N.S., Rahman A.H.A., Adam A.,(2020) “Ensemble Learning for Rainfall Prediction,” International Journal of Advance Computer Science and Application
Syafrina A.H., Norzaida A., Shazwani O.N.,(2017) “Rainfall analysis in the northern region of Peninsular Malaysia,” International Journal of Advance and Applied Sciences, September
Suputra K. I.,(2017) “Perhitungan Intensitas Hujan Berdasarkan Data Curah Hujan Stasiun Curah Hujan di Kota Denpasar,” Universitas Udayana
Triatmodjo B.,(2015) “Hidrologi Terapan,” Beta Offset, October
Upomo T.C., Kusumawardani R.,(2017).“Pemilihan Probabilitas Pada Analisa Hujan Dengan Metode Goodness of Fit Test” Jurnal Teknik Sipil dan Perencanaan, Juli