February 21, 2024

We are creating some awesome events for you. Kindly bear with us.

New space tech provides flood monitoring near real-time

Credit: UNSW School of Civil & Environmental Engineering

Accurate maps of the Townsville flood frontier are being provided by researchers from the University of New South Wales (UNSW) Sydney within an hour using the latest satellite radar imaging technology.

Record-breaking floods threatening North Queensland are being mapped within an hour to provide snapshots of rising floodwaters, where previously such images were slow to produce and hampered by poor visibility.

As reported, the flood map was put together with the use of European satellites that are fitted with radar imaging technology able to penetrate cloud cover.

This new type of flood intelligence could allow authorities to make decisions about critical infrastructure like switching off power stations before flood waters can reach them.

This is the first time that such advanced satellite technology has been used to map flooded areas from space according to Professor Linlin Ge of the University’s School of Civil and Environmental Engineering.

They would download very large volumes of satellite data from the European Space Agency.

One of the most advanced techniques available for flood mapping is being used by the team.

Synthetic aperture radar (SAR) is a radar imaging technology that can observe the earth day and night, through cloud cover or smoke.

Meanwhile, Interferometric SAR (InSAR) is a technique to combine a pair of SAR images in order to measure changes to terrain or ground displacement.

The result, InSAR coherence, is a by-product of InSAR processing and is a reliable and innovative measure showing feature similarity between the two images in the pair.

If an area is not flooded on the first image but inundated on the second image, this will lead to a significant reduction in InSAR coherence.

The coherence between the two SAR images can then be collected over the same area shortly before the flood as a baseline, which is called the pre-event pair.

The new technique of coherence change between the pre-event and co-event pairs can then serve as a reliable new tool to map flood extent and to identify flood fronts.

These data are then processed in order to generate comprehensive maps to show the extent of the floods.

The team made the data available to all through social media and can be viewed by following the Twitter hashtag #UNSW-GEOS.

Before using this latest technology, getting a composite, accurate and up-to-date image of floods has been difficult.

Heavy rains, strong winds, thick cloud and lightning can make it impossible or dangerous to fly an aircraft to monitor floods, like the one in North Queensland, which stretches 700 km from Cairns to Mackay.

Although elements may be favourable, it could take days to piece together a ‘big-picture’ view of flood movement, by which time the floods could have already moved on to a new front.

Even views from space via optical satellites can be made redundant if large parts of a flood-ravaged region are obscured by clouds.

The team is expected to provide round-the-clock monitoring of the data to continue for the next few days.

Townsville is at the epicentre of an unprecedented monsoonal downpour with more than a year’s worth of rain dumped in just a few days, and three to four more days of torrential rain expected.

PARTNER

Qlik’s vision is a data-literate world, where everyone can use data and analytics to improve decision-making and solve their most challenging problems. A private company, Qlik offers real-time data integration and analytics solutions, powered by Qlik Cloud, to close the gaps between data, insights and action. By transforming data into Active Intelligence, businesses can drive better decisions, improve revenue and profitability, and optimize customer relationships. Qlik serves more than 38,000 active customers in over 100 countries.

PARTNER

CTC Global Singapore, a premier end-to-end IT solutions provider, is a fully owned subsidiary of ITOCHU Techno-Solutions Corporation (CTC) and ITOCHU Corporation.

Since 1972, CTC has established itself as one of the country’s top IT solutions providers. With 50 years of experience, headed by an experienced management team and staffed by over 200 qualified IT professionals, we support organizations with integrated IT solutions expertise in Autonomous IT, Cyber Security, Digital Transformation, Enterprise Cloud Infrastructure, Workplace Modernization and Professional Services.

Well-known for our strengths in system integration and consultation, CTC Global proves to be the preferred IT outsourcing destination for organizations all over Singapore today.

PARTNER

Planview has one mission: to build the future of connected work. Our solutions enable organizations to connect the business from ideas to impact, empowering companies to accelerate the achievement of what matters most. Planview’s full spectrum of Portfolio Management and Work Management solutions creates an organizational focus on the strategic outcomes that matter and empowers teams to deliver their best work, no matter how they work. The comprehensive Planview platform and enterprise success model enables customers to deliver innovative, competitive products, services, and customer experiences. Headquartered in Austin, Texas, with locations around the world, Planview has more than 1,300 employees supporting 4,500 customers and 2.6 million users worldwide. For more information, visit www.planview.com.

SUPPORTING ORGANISATION

SIRIM is a premier industrial research and technology organisation in Malaysia, wholly-owned by the Minister​ of Finance Incorporated. With over forty years of experience and expertise, SIRIM is mandated as the machinery for research and technology development, and the national champion of quality. SIRIM has always played a major role in the development of the country’s private sector. By tapping into our expertise and knowledge base, we focus on developing new technologies and improvements in the manufacturing, technology and services sectors. We nurture Small Medium Enterprises (SME) growth with solutions for technology penetration and upgrading, making it an ideal technology partner for SMEs.

PARTNER

HashiCorp provides infrastructure automation software for multi-cloud environments, enabling enterprises to unlock a common cloud operating model to provision, secure, connect, and run any application on any infrastructure. HashiCorp tools allow organizations to deliver applications faster by helping enterprises transition from manual processes and ITIL practices to self-service automation and DevOps practices. 

PARTNER

IBM is a leading global hybrid cloud and AI, and business services provider. We help clients in more than 175 countries capitalize on insights from their data, streamline business processes, reduce costs and gain the competitive edge in their industries. Nearly 3,000 government and corporate entities in critical infrastructure areas such as financial services, telecommunications and healthcare rely on IBM’s hybrid cloud platform and Red Hat OpenShift to affect their digital transformations quickly, efficiently and securely. IBM’s breakthrough innovations in AI, quantum computing, industry-specific cloud solutions and business services deliver open and flexible options to our clients. All of this is backed by IBM’s legendary commitment to trust, transparency, responsibility, inclusivity and service.

Send this to a friend