Details
| Original language | English |
|---|---|
| Article number | 359 |
| Number of pages | 19 |
| Journal | Water (Switzerland) |
| Volume | 9 |
| Issue number | 5 |
| Publication status | Published - 20 May 2017 |
Abstract
Mombasa faces severe water scarcity problems. The existing supply is unable to satisfy the demand. This article demonstrates the combination of satellite image analysis and modelling as tools for the development of an urban rainwater harvesting policy. For developing a sustainable remedy policy, rooftop rainwater harvesting (RRWH) strategies were implemented into the water supply and demand model WEAP (Water Evaluation and Planning System). Roof areas were detected using supervised image classification. Future population growth, improved living standards, and climate change predictions until 2035 were combined with four management strategies. Image classification techniques were able to detect roof areas with acceptable accuracy. The simulated annual yield of RRWH ranged from 2.3 to 23 million cubic meters (MCM) depending on the extent of the roof area. Apart from potential RRWH, additional sources of water are required for full demand coverage.
Keywords
- Integrated water resources management, Mombasa, Roof rainwater harvesting, Water demand, Water supply, WEAP
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Social Sciences(all)
- Geography, Planning and Development
- Agricultural and Biological Sciences(all)
- Aquatic Science
- Environmental Science(all)
- Water Science and Technology
Sustainable Development Goals
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In: Water (Switzerland), Vol. 9, No. 5, 359, 20.05.2017.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Rooftop Rainwater Harvesting for Mombasa
T2 - Scenario Development with Image Classification and Water Resources Simulation
AU - Ojwang, Robert O.
AU - Dietrich, Jörg
AU - Anebagilu, Prajna Kasargodu
AU - Beyer, Matthias
AU - Rottensteiner, Franz
N1 - Publisher Copyright: © 2017 by the authors. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/5/20
Y1 - 2017/5/20
N2 - Mombasa faces severe water scarcity problems. The existing supply is unable to satisfy the demand. This article demonstrates the combination of satellite image analysis and modelling as tools for the development of an urban rainwater harvesting policy. For developing a sustainable remedy policy, rooftop rainwater harvesting (RRWH) strategies were implemented into the water supply and demand model WEAP (Water Evaluation and Planning System). Roof areas were detected using supervised image classification. Future population growth, improved living standards, and climate change predictions until 2035 were combined with four management strategies. Image classification techniques were able to detect roof areas with acceptable accuracy. The simulated annual yield of RRWH ranged from 2.3 to 23 million cubic meters (MCM) depending on the extent of the roof area. Apart from potential RRWH, additional sources of water are required for full demand coverage.
AB - Mombasa faces severe water scarcity problems. The existing supply is unable to satisfy the demand. This article demonstrates the combination of satellite image analysis and modelling as tools for the development of an urban rainwater harvesting policy. For developing a sustainable remedy policy, rooftop rainwater harvesting (RRWH) strategies were implemented into the water supply and demand model WEAP (Water Evaluation and Planning System). Roof areas were detected using supervised image classification. Future population growth, improved living standards, and climate change predictions until 2035 were combined with four management strategies. Image classification techniques were able to detect roof areas with acceptable accuracy. The simulated annual yield of RRWH ranged from 2.3 to 23 million cubic meters (MCM) depending on the extent of the roof area. Apart from potential RRWH, additional sources of water are required for full demand coverage.
KW - Integrated water resources management
KW - Mombasa
KW - Roof rainwater harvesting
KW - Water demand
KW - Water supply
KW - WEAP
UR - http://www.scopus.com/inward/record.url?scp=85019639942&partnerID=8YFLogxK
U2 - 10.3390/w9050359
DO - 10.3390/w9050359
M3 - Article
AN - SCOPUS:85019639942
VL - 9
JO - Water (Switzerland)
JF - Water (Switzerland)
SN - 2073-4441
IS - 5
M1 - 359
ER -