Cartography in Early Warning and Crisis Management

Sensor data for early warning and disaster risk reduction and management - II

3704.1 - Flood Impact and Risk Assessment for Urban City Ghent

Monday, July 3
4:10 PM - 4:30 PM
Location: Virginia B

Previous studies have reported that Ghent (Belgium) and regions nearby are insufficiently protected against storm surge events from the North Sea, whether combined with high upper drainage by abundant rainfall or not.

When a downpour occurs and drains can no longer effectively manage the amount of water, floods in and around the city of Ghent will cause damage to energy and transportation infrastructure and precipitate a disruption to the delivery of services.

In this research, an analysis is made for the casualties and economic damage caused by floods due to a downpour that statistically takes place once every twenty and hundred years (T20 and T100) for the current situation and for the projected situation in 2050. The impact of moderate to extreme floods in the territory of Ghent is investigated, wherein all fragile infrastructure and vulnerable functions are identified and described.

Although Ghent appears to be well protected against the high water levels of the rivers Lys and Scheldt, the complex system of drains and canals in and around Ghent is nevertheless insufficient for the downpour of type T20 and T100.

This research concludes with an adaptation plan with a series of practical measures to be introduced by 2050, e.g., inserting gates where needed, building sluices to prevent ingress of water into drains, raising floor levels in vulnerable town centre properties, and installing breakwaters. This local-scale assessment is a step towards helping the community to understand urban flood events and how inhabitants can adapt to future climate change.

Samuel Van Ackere

PhD student
Ghent University, Department of Geography

Samuel Van Ackere is PhD student at the Department of Geography since the end of 2015. His research focuses on the risk of coastal flooding and the impact of wave overtopping during extreme storms on structures, buildings and people. Low-elevation coastal areas are vulnerable to the effects of sea level rise and an increased frequency and severity of storm surge events due to climate change. Therefore, his project aims at finding adaptive solutions that increase the resilience of these zones. His project focuses on creating a socio-economic impact assessment tool which models and estimates this risk and provides evacuation maps.

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Hanne Glas

Ghent University, Department of Civil Engineering

Hanne graduated in 2013 as a Master of Science in geomatics and surveying at HoGent-Ugent. She is currently working as an assistant in the Ghent University education program Industrial Engineering – Surveying since May 1st 2014. She is also researching Flood Risk Assessment in the SIDS (small island developing states) for her PhD.

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Greet Deruyter

Prof. Dr.
Ghent University, Department of Civil Engineering

MSc in Civil Engineering Technology (1984), MSC in Land Survey Engineering Technology (1995), Doctor of Science: Geography (2005).

From 1984 until 1992 she was employed at Volo Cars Europe, consecutively as production planner, applications analyst and system manager. From 1993 until 2013 she was part of the academic staff of University College Ghent. Since 2007, she is affiliated to UGent as visiting professor, later as assistant professor (2013) and associate professor (2015).

Her research is situated in the broad domain of geomatics and land surveying.

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Philippe De Maeyer

Prof. Dr.
Universiteit Gent

Philippe De Maeyer is senior full professor in cartography and GIS; he is the chair of the Department of Geography. His research topics cover cartography (esp. historical) and applications of GIS in different domains (such as archaeology, risk calculation and hydrography). He is full member of the Royal Academy of Overseas Sciences and chair of the National Committee of Geography.

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Jonathan Li

Professor
University of Waterloo

Jonathan Li is a full professor with the Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada, He received the PhD degree in remote sensing and geoinformatics from the University of Cape Town, South Africa in 2000. His research interests include information extraction from earth observation imagery and mobile laser scanning data. He is chair of the ICA Commission on SEnsor-driven Mapping (2015-2019). He is Associate Editor of IEEE-TITS, IEEE-JSTARS, and Sensors.

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