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Remote monitoring could boost the use of nature-based solutions to safeguard against natural hazards
by Staff Writers
Guildford TX (SPX) Mar 31, 2021

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Remote monitoring using airborne devices such as drones or satellites could revolutionise the effectiveness of nature-based solutions (NBS) that protect communities from devastating natural hazards such as floods, storms and landslides, say climate change experts from the University of Surrey.

Grey structural measures (a collective term for engineering projects that use concrete and steel) like floodgates, dams, dikes and sea walls are still the most common methods to guard against natural hazards.

However, these 'grey measures' are expensive and lack the long-term flexibility and sustainability needed to help communities manage their growing population and address the planet's ongoing struggle against urbanisation and climate change. While NBS are cost-effective, their usability and reproducibility are often hindered by the lack of standard monitoring methods, tools and indicators.

In a comprehensive study published in the Earth-Science Reviews journal, researchers from Surrey's Global Centre for Clean Air Research (GCARE) collaborated with experts from across Europe* to analyse monitoring methods that measure the effectiveness of NBS - such as wetlands, forest restoration projects and installation of green walls.

In the paper, the team found that while there is a need for combining ground and remote monitoring methods for holistic assessment, the advances in remote monitoring techniques present a significant source of hope for routinely, continually and accurately measuring the effectiveness of NBS and quelling skepticism around choosing NBS over grey-engineered options. Remote monitoring offers the ability to cover large geographical areas, and high-resolution imagery could change the way farmers, scientists, hazard managers and other decision-makers view NBS usage and applicability.

However, the study also warns that the lack of globally accepted standards to gauge an NBS success hinders their progress and use and needs to be urgently addressed.

Professor Prashant Kumar, Associate Dean (International) and the Director of the GCARE at the University of Surrey, said: "Unfortunately we do expect a significant uptick in natural hazards, thanks to climate change. Therefore, our decisions on how we protect ourselves are crucial, and nature-based solutions have the advantages of being flexible and not adding to the damage caused to our environment. "I hope that this review begins an urgent discussion on how we can move forward as a scientific community and start to develop an accepted framework for measuring the effectiveness of nature-based solutions."

Research Report: "An overview of monitoring methods for assessing the performance of nature-based solutions against natural hazards"

Related Links
University Of Surrey
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Utilis, a pioneer of satellite-based infrastructure intelligence, has announced that it has raised $6m from Beringea, the transatlantic venture capital firm. The funding will be used to accelerate the growth of its data-driven analytics which enables detection of water leaks and infrastructure asset management, reflecting the rising focus on resource preservation around the world during the climate crisis. Utilis was founded in 2013 by Lauren Guy, a scientist focused on atmospheric physics and dyn ... read more

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