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Assessing Rainwater Risks and Rainwater Harvesting Opportunities for the New Capital City of Indonesia

Author

Listed:
  • Walter Timo de Vries

    (School of Engineering and Design, Technical University of Munich, 80333 Munich, Germany)

  • Jialan Shi

    (School of Engineering and Design, Technical University of Munich, 80333 Munich, Germany)

Abstract

In the context of planning and construction of the new capital city of Indonesia, referred to as Ibu Kota Negara (IKN), this article addresses the spatial risks and opportunities of rainwater resources in the area where IKN is planned. The article relies on an inventory of various physical data, which were used to derive a flood susceptibility map, as well as rainfall data derived from public and open sources. The geospatial study drew on geospatial software (ArcGIS Pro, 2.1.) and the Google Earth Engine platform (GEE). After this analysis, we followed a management design, which took IPCC climate change scenarios into account. The results demonstrated that the southern coast has higher precipitation than the northern coast in the IKN area. To enhance the efficacy of rainwater management planning, a grid is proposed to mitigate the flood risk and to harvest rainwater. Although rainwater varies throughout the IKN area, and may vary even more with different climate change predictions, it is possible to capture rainwater and create a system to reduce reliance on traditional water sources, alleviate stormwater runoff and mitigate the impact of urban flooding. While IKN will be developed by both regulated planning and other population-driven developments, monitoring and reflecting on existing plans will still be necessary to make IKN sufficiently resilient and sustainable.

Suggested Citation

  • Walter Timo de Vries & Jialan Shi, 2024. "Assessing Rainwater Risks and Rainwater Harvesting Opportunities for the New Capital City of Indonesia," Sustainability, MDPI, vol. 16(22), pages 1-19, November.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:22:p:9999-:d:1522297
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    References listed on IDEAS

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    1. Hasanuddin Abidin & Heri Andreas & Irwan Gumilar & Yoichi Fukuda & Yusuf Pohan & T. Deguchi, 2011. "Land subsidence of Jakarta (Indonesia) and its relation with urban development," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 59(3), pages 1753-1771, December.
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