What is it about?
Rainwater is a useful water resource. Capturing is a way to re-use the water for multiple purposes, especially in cities. We show how one can design where best to capture the rainwater and how to re-use it. We test it for a completely new city, namely the new capital city of Indonesia (referred to as IKN). We used open source data rainfall data from the govnerment and google earth engine for the analysis and scenarios. We demonstrate where most and least of the rainfall can be captured in the IKN. The scenarios show that it is possible to capture sufficient amounts of rainfall at partocular locations, yet also demonstrate that the locations and amounts may change with changing climate patterns.
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Photo by Inge Maria on Unsplash
Why is it important?
As cities often use lots of drinking water and generate lots of wastewater, it is important to find novel ways how to re-use the water that is available. Especially in tropical areas, there are comparatively larger amounts of rain, which can be harvested and re-used. We predict where how much rainfall will fall and where and how to re-use this to keep a city green and sustainable.
Perspectives
This article is part of a larger research on the new capital city of Indonesia, IKN. At first very little was known about how the city would develop and what sort of factors would play a role to make the city green, sustainable and beautiful. For this reason, we looked into multiple aspects of what could happen in the city. This study is related to water and infrastructure designs and impacts of such designs. This article fits into a list of studies which we are working on. These aim to predict spatial developments and associated technical requirements for the IKN.
Professor Walter Timo de Vries
Technical University of Munich
Read the Original
This page is a summary of: Assessing Rainwater Risks and Rainwater Harvesting Opportunities for the New Capital City of Indonesia, Sustainability, November 2024, MDPI AG,
DOI: 10.3390/su16229999.
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