WATER BUDGET ASSESSMENT UNDER RAPID URBANIZATION IN YOGYAKARTA, INDONESIA USING A DISTRIBUTED WATER BALANCE MODEL

Authors

Keywords:

Urbanization, Water Balance, Monthly Distributed Model, Water Storage, Yogyakarta

Abstract

Rapid urbanization has increased the challenge of freshwater provision for the urban population. Modelling water balance can help visualizing the occurrence in a hydrological system due to urbanization that is beneficial for future water-resource management. A hybrid distributed monthly water balance model adopted from Xinanjiang model and TOPMODEL by (Chen et al. 2007) has succeeded to simulate the distributed water storage in a catchment area and applied to the water resources change assessment by districts in peri-urban area of Yogyakarta City, Indonesia. The hybrid model was modified to include water uptake in urban area. The optimized model estimated monthly river discharge with R = 0.77. The model demonstrated the saturation distribution change by the intensified water uptake in expanded urban area especially in dry season. The model simulation could point out the sensitive districts of which water storage possibly decrease caused by the urbanization progress.

 

Author Biographies

Sintha Prima Widowati Gunawan, University of Pembangunan Nasional "Veteran" Yogyakarta

Sintha Prima Widowati Gunawan is currently a Ph.D. candidate in Green Engineering for Global Environment Laboratory, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Japan. Concurrently, she is also a lecturer in Department of Environmental Engineering, University of Pembangunan Nasional “Veteran” Yogyakarta, Indonesia. She holds a bachelor degree (S.T.) in Architecture from University of Gadjah Mada, Indonesia and a master degree (M.Sc.) in Urban Environmental Management from Asian Institute of Technology, Thailand. Her previous research interest was involving challenges and solutions in urban environmental sustainability issues such as air pollution, solid waste management, environmental impact assessment,  and land use (spatial) planning. Currently, she is involved in analysis of greenspace provision in urban housing due to water resource conservation with the aid of remote sensing data, geographic information system, and machine learning algorithm.

Takashi Machimura, Osaka University

Takashi Machimura is currently an Associate Professor in Green Engineering for Global Environment Laboratory, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Japan. He holds bachelor degree, master degree and doctoral degree in Agricultural Engineering from Hokkaido University, Japan. His current research theme is including carbon cycle, urban greening/building greening, and forest ecosystem model. He is a member at several professional society, such as The Society of Agricultural Meteorology of Japan, The Japan Society of Hydrology and Water Resources, The Remote Sensing Society of Japan, Japan Society for Natural Disaster Science, and Japan Society for Atmospheric Environment. He has received a First Prize from China Ningxia Autonomous Region People's Government Science and Technology Progress Achievement Award in 1994.

Takanori Matsui, Osaka University

Takanori Matsui is currently an Assistant Professor in Green Engineering for Global Environment Laboratory, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Japan. Moreover, he is also a Visiting Research Fellow in United Nations University Advanced Study of Sustainability (UNU-IAS) and a Collaborative Research Fellow in Research Institute for Humanity and Nature. He holds a bachelor degree, a master degree and a doctoral degree sequentially in Environmental Engineering from Osaka University, Japan. He engages at several professional society such as the Philosophical Society of Japan and the Japanese Society for Artificial Intelligence. His research interest is involving challenge and solution in SDGs issues with the aid of artificial intelligence technology. In collaboration with his colleagues, he received a National Convention Excellence Award from Japanese Society for Artificial Intelligence.

Heru Hendrayana, University of Gadjah Mada

Heru Hendrayana is currently an Associate Professor in Department of Geological Engineering in University of Gadjah Mada.  He holds a bachelor degree in Geological Engineering from University of Gadjah Mada, Yogyakarta and a doctoral degree in Hydrogeology Engineering from RWTH-Aachen Germany Institute of Hidrogeology and Engineering Geology, Germany. He has extensive experience on wide hydrogeological research theme, including groundwater flow and contamination modelling, groundwater exploration and exploitation, groundwater information system development, and groundwater risk assessment and hazard management. He is a member of several professional society, such as Ikatan Ahli Geofisika Indonesia, Ikatan Ahli Geologi Indonesia, Indonesian Communication Forum on Drinking Water Quality Management, Persatuan Ahli Air Tanah Indonesia, and International Association of Hidrogeologist. 

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Published

2023-11-01

How to Cite

Gunawan, S. P. W., Machimura, T., Matsui, T., & Hendrayana, H. (2023). WATER BUDGET ASSESSMENT UNDER RAPID URBANIZATION IN YOGYAKARTA, INDONESIA USING A DISTRIBUTED WATER BALANCE MODEL. GEOMATE Journal, 25(111), 24–32. Retrieved from https://geomatejournal.com/geomate/article/view/3853

Issue

Vol. 25 No. 111 (2023): November 2023

Section

Articles

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