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Flood Metrics - a new online interface for satellite-based flood products

Source(s):  DHI Group

Fooding’s are the most common and devastating types of natural disasters – causing significant social, economic and environmental consequences. However, the impacts of flooding events are often exacerbated by lacking data and information to support informed emergency response and flood protection measures. DHI's new Flood Metrics portal is all about making sure that the right data meets the right people, in time.

As populations grow, seas rise and storms rage, more and more people, beyond the high-risk areas known today, find themselves increasingly exposed to severe flooding events. Flooding’s cause detrimental impacts on people’s assets and physical well-being, as well as regional infrastructure and the economy, and the consequences are being felt worldwide. The frequency of these events is expected to increase, and for many communities, these flooding’s will no longer be a ‘once in a lifetime’ risk but rather an unconditional term of existence.

Frontline technology to support emergency response and mitigation efforts

While we cannot prevent these flooding’s from happening altogether, we can manage and mitigate the impacts. However, flood control and management represent a major challenge for water authorities, and as the global incidence of flooding events increases, many countries struggle to cope with the impacts. To support emergency response efforts and strengthen the authorities' ability to develop actionable climate change strategies, data and information that can be used to assess the extent of current, as well as historical, flood events are essential. Not only do these data form an important evidence base to inform emergency response actions, but they are also critical as a means to enrich and support the development and qualification of flood forecasts and risk assessments. However, up to date and accurate information about flood extent and occurrence is often lacking - significantly impeding the ability of authorities to make informed decisions during, and after, a flood-related emergency.

New Earth Observation (EO) satellite data, novel image processing methods and state-of-art machine learning algorithms have propelled satellite-based flood mapping into a new era, providing a time-critical resource to address this data gap, as a fast, efficient and accurate tool for mapping water on terrain and flooded areas.

Flood Metrics - High-quality, cost-efficient and operational flood monitoring products to support critical decision making

As domain experts of research and knowledge development in water environments for over 50 years, DHI delivers frontline technology to solve the toughest water-related challenges. Our latest operational flood mapping tool provides a low-cost and reliable option for assessing the spatial extent of a flooding event in near real-time. By fusing both optical and radar satellite data, we can map flooded areas quickly – in less than an hour after we receive the raw satellite data - with high precision, and regardless of weather conditions, cloud cover and time of day.

Now, this data is easier to access, explore and acquire than ever, through 'Flood Metrics', our new all-in-one interface for DHI's satellite-based flood monitoring products.

For more information about Flood Metrics visit floodmetrics.dhigroup.com/home or explore the tool directly from floodmetrics.dhigroup.com/



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  • Publication date 18 Jan 2021

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