JURNAL SUMBER DAYA AIR
Vol 22, No 1 (2026)

LSTM (Long Short-Term Memory)-based Hydrograph Modeling for Pandanduri Reservoir, Indonesia

Piter Wongso (Bandung Institute of Technology)
Siska Wulandari ((Scopus ID: 59470501600) Bandung Institute of Technology)
Neil Andika ((Scopus ID: 57227691500) Department of Civil and Environmental Engineering, Gadjah Mada University, Yogyakarta, Indonesia)
Faizal Immaddudin Wira Rohmat ((Scopus ID: 57211253133) Bandung Institute of Technology)
Muhammad Ammar Fadhil Adfa (Ministry of Public Works, Republic of Indonesia JL. Pattimura 20, Kebayoran Baru Jakarta,12110 Indonesia)



Article Info

Publish Date
31 May 2026

Abstract

Dams are vital infrastructure that supports irrigation, raw water supply, flood control, hydroelectric power, and tourism. Reservoirs of the dam store the water during the rainy season and release it in the dry season to reduce the flood risk. Continuous monitoring is essential to ensure their optimal function and safe operation. However, in many developing regions, the availability and quality of discharge data remain inadequate due to poor data governance, limited resources, and insufficient digital infrastructure. These challenges highlight the need for new approaches capable of improving discharge prediction under limited data conditions. To address this issue, Machine Learning (ML) has gained popularity in hydrological research. Long Short-Term Memory (LSTM) is one of the ML methods that has proven effective for analyzing historical data patterns for prediction. This study uses an LSTM-based hydrograph model in the Pandanduri Reservoir Watershed, Indonesia. Compared to conventional statistical or conceptual models, LSTM offers the advantage of capturing nonlinear dynamics in long time-series datasets. The model utilized open data, including satellite rainfall data, meteorological data, and streamflow data records, to capture the complex relationship between rainfall and streamflow.  The generated model was validated with the recorded streamflow data. The model evaluation produces an NSE of 0.44 and an RMSE of 0.74. These values indicate that the model is capable of reproducing key rainfall–runoff dynamics under data-limited conditions. Further research is essential to improve the ability of LSTM to capture extreme events and improve its generalization across hydrological conditions.

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Journal Info

Abbrev

JSDA

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Engineering

Description

Jurnal Sumber Daya Air (JSDA) is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on Water, and Water resources as well as related topics. All papers are peer-reviewed by at least ...