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How might we deploy a cost-effective solution to greatly increase the
spatial coverage of rainfall monitoring?
Challenge Owners
Singapore experiences an average of 167 rain days in a year, including 31 to 73 days classified as heavy rain days (based on 10 years of data).
Today, PUB is relying on 81 units of rain gauges across 710 km2 of land area to monitor rainfall across the entire island. Due to World Meteorological Organization’s requirements as well as limited suitable sites for installing rain gauges, there will be locations where rain gauges are sited as far as 3-5km away from each other. This results in the problem whereby the nearest rain gauges are too far to give representative readings of the rain intensity in certain areas.
Due to the convective nature of Singapore’s weather system, the rainfall in Singapore can vary significantly spatially and temporally. It is important that PUB obtains adequate rainfall data to support decisions to deploy flood management resources. The existing density of the rain gauge network does not provide enough resolution of the rainfall distribution and therefore, there have been instances in which the nearest rain gauge does not capture the actual rainfall at a location at a particular moment because it is sited outside the localised heavy rain area.
We are interested to increase the density of our existing rain monitoring network by sourcing low-cost sensors that can be more flexibly and widely deployed. The sensors need to measure rainfall intensity and provide rainfall measurement data in real-time at the onset of rain. The data will support PUB’s decision for the deployment of flood management resources. These rainfall measurements at street-scale resolution would allow optimal.
The sensors could be retrofitted to the top of common public infrastructure, such as lamp posts and bus stops. At the right cost per sensor, PUB could deploy more than a thousand sensors island wide.
An integrated system of cost-effective rain sensors that is validated through deployment and testing in a district in Singapore. The sensors should be mounted on appropriate public infrastructure such as lamp posts, bus stops, HDB flats, moving buses or any other suitable structures that the solution provider can propose. A dashboard interface developed by the solution provider shall provide a system overview and data visualisation of all deployed sensors in one dashboard. All sensors to be provided for this pilot including the customised web page for display of data shall be owned, operated and maintained by the solution provider. The solution provider will be responsible for obtaining the necessary approval from the relevant agencies.
If the pilot is successful, the solution will be provided to PUB through a leasing model to which the solution provider is to provide an indicative pricing model.
Challenge Owners
Singapore experiences an average of 167 rain days in a year, including 31 to 73 days classified as heavy rain days (based on 10 years of data).
Today, PUB is relying on 81 units of rain gauges across 710 km2 of land area to monitor rainfall across the entire island. Due to World Meteorological Organization’s requirements as well as limited suitable sites for installing rain gauges, there will be locations where rain gauges are sited as far as 3-5km away from each other. This results in the problem whereby the nearest rain gauges are too far to give representative readings of the rain intensity in certain areas.
Due to the convective nature of Singapore’s weather system, the rainfall in Singapore can vary significantly spatially and temporally. It is important that PUB obtains adequate rainfall data to support decisions to deploy flood management resources. The existing density of the rain gauge network does not provide enough resolution of the rainfall distribution and therefore, there have been instances in which the nearest rain gauge does not capture the actual rainfall at a location at a particular moment because it is sited outside the localised heavy rain area.
We are interested to increase the density of our existing rain monitoring network by sourcing low-cost sensors that can be more flexibly and widely deployed. The sensors need to measure rainfall intensity and provide rainfall measurement data in real-time at the onset of rain. The data will support PUB’s decision for the deployment of flood management resources. These rainfall measurements at street-scale resolution would allow optimal.
The sensors could be retrofitted to the top of common public infrastructure, such as lamp posts and bus stops. At the right cost per sensor, PUB could deploy more than a thousand sensors island wide.
An integrated system of cost-effective rain sensors that is validated through deployment and testing in a district in Singapore. The sensors should be mounted on appropriate public infrastructure such as lamp posts, bus stops, HDB flats, moving buses or any other suitable structures that the solution provider can propose. A dashboard interface developed by the solution provider shall provide a system overview and data visualisation of all deployed sensors in one dashboard. All sensors to be provided for this pilot including the customised web page for display of data shall be owned, operated and maintained by the solution provider. The solution provider will be responsible for obtaining the necessary approval from the relevant agencies.
If the pilot is successful, the solution will be provided to PUB through a leasing model to which the solution provider is to provide an indicative pricing model.
