Analisis Evapotranspirasi Metode Penman Modifikasi Dan Thornthwaite Terhadap Pemodelan Debit Fj. Mock Analysis Of Evapotranspiration Using Modified Penman And Thornthwaite Methods On Fj. Mock's Run-Off Modelling
Main Article Content
Abstract
Evapotranspiration is a key parameter used in run-off modelling. The Bulango Ulu Dam, located near the equator where sunlight is at its peak throughout the year, makes evapotranspiration a crucial factor in analysing water availability. This research aims to analyse the performance of two evapotranspiration calculation methods on the accuracy of run-off modelling to the Bulango Ulu dam. The study employs the modified Penman and Thornthwaite evapotranspiration methods as input to Mock's model. The Analysis indicates that the Mock-Penman method outperforms the Mock-Thornthwaite method, with statistical parameter results of MAE 0.963, NSE 0.891, R 0.949 and Kr 1.3%, Therefore, it concludes that the run-off modelling aligns with the observed flow value
Downloads
Article Details

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
All rights reserved. This publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording.
References
Adiningrum, C. (2016). Analisis Perhitungan Evapotranspirasi Aktual Terhadap Perkiraan Debit Kontinyu dengan Metode Mock. Jurnal Teknik Sipil, 13(2), 135–147. https://doi.org/10.24002/jts.v13i2.649
Anggraini, N., & Slamet, B. (2021). Thornthwaite Models for Estimating Potential evapotranspiration in Medan City. IOP Conference Series: Earth and Environmental Science, 912(1). https://doi.org/10.1088/1755-1315/912/1/012095
Chow, V. Te, Maidment, D. R., & Mays, L. W. (1988). Applied Hydrology (B. J. Clark & J. Morriss, Eds.; 2nd ed.). McGraw-Hill Book Co.
Hadisusanto, N. (2010). Aplikasi Hidrologi (H. Istianto, Ed.; 1st ed., Vol. 1). Jogja Mediautama.
Jayanti, M., Sabar, A., Ariesyady, H. D., Marselina, M., & Qadafi, M. (2023). A comparison of three water discharge forecasting models for monsoon climate region: A case study in cimanuk-jatigede watershed Indonesia. Water Cycle, 4, 17–25. https://doi.org/10.1016/j.watcyc.2023.01.002
Nugroho, A. (1989). Beberapa Teori dan Aplikasi Rumus Thornthwaite untuk Menghitung Jumlah Cadangan Sumber Daya Air. Majalah Geografi Indonesia, 2(3), 27–38. https://journal.ugm.ac.id/mgi/article/view/5280
Putri, A. S., Suhartanto, E., & Fidari, J. S. (2023). Perbandingan Metode Alih Ragam Hujan Menjadi Debit dengan FJ. Mock dan NRECA di DAS Rejoso Kabupaten Pasuruan. Jurnal Teknologi Dan Rekayasa Sumber Daya Air, 3(2), 78–92. https://doi.org/10.21776/ub.jtresda.2023.003.002.07
Suhartanto, E., Cahya, E. N., & Maknun, L. (2019). Analisa Limpasan Berdasarkan Curah Hujan Menggunakan Model Artificial Neural Network (ANN) di Sub DAS Brantas Hulu. Jurnal Teknik Pengairan, 10(2), 134–144. https://doi.org/10.21776/ub.pengairan.2019.010.02.07
Widyaningsih, K. waasiu, Harisuseno, D., & Soetopo, W. (2021). Perbandingan Metode FJ. Mock dan NRECA untuk Transformasi Hujan Menjadi Debit pada DAS Metro Kabupaten Malang, Jawa Timur. Jurnal Teknologi Dan Rekayasa Sumber Daya Air, 1(1), 52–61. https://doi.org/10.21776/ub.jtresda.2021.001.01.05
Wilnaldo, A., Putra, Y. S., & Adriat, R. (2020). Perbandingan Metode Perhitungan Evapotranspirasi Potensial di Paloh Kabupaten Sambas Kalimantan Barat. PRISMA FISIKA, 8(3), 165–171. https://doi.org/10.26418/pf.v8i3.43618
Wirawan, J., Idkham, M., & Chairani, S. (2021). Analisis Evapotranspirasi dengan Menggunakan Metode Thornthwaite, Blaney Criddle, Hargreaves, dan Radiasi. Rona Teknik Pertanian, 6(2), 451–457. https://doi.org/10.17969/rtp.v6i2.20429