Assessment of in-situ tidal marsh erodibility under high flow velocities

Coastal flood risk is expected to increase due to climate change and population<br/>growth. Much of our coastlines is protected by “grey” infrastructure such as a dike.<br/>Dike maintenance and strengthening requires ever increasing capital and space,<br/>putting their economic viability in question. To combat this trend, more<br/>sustainable...

Stability of a Tidal Marsh Under Very High Flow Velocities and Implications for Nature-Based Flood Defense

Nature-based strategies, such as wave attenuation by tidal marshes, are increasingly proposed as a complement to mitigate the risks of failure of engineered flood defense structures such as levees. However, recent analysis of historic coastal storms revealed smaller dike breach dimensions if there were natural, high tidal marshes in front of...

A Basic Set of Mental Models for Understanding and Dealing with the CyberSecurity Challenges of Today

For most people, cybersecurity is a difficult notion to grasp. Traditionally, cybersecurity has been considered a technical challenge, and still many specialists understand it as information security, with the notions of confidentiality, integrity, and availability as its foundation. Although many have searched for different and broader...

Midtown: Right in the MIDst of a climate resilient and vibrant HousTOWN

Houston, TX is known for being flood prone. Recent disasters such as Hurricane Harvey (2017) severly damaged this city. Houston’s flooding problem is caused by urban sprawl, the flatness of the city and the lack of policy. The urban sprawl increases the amount of concrete and limits the city’s natural drainage, the flatness of the city means the...

Grasping cybersecurity: A set of essential mental models

For most people, cybersecurity is a hard to grasp notion. Traditionally, cybersecurity has been considered as a technical challenge and still many specialists view it equivalent with information security, with the notions of confidentiality, integrity and availability as starting points of thinking. And although others searched for a broader...

Voltage Control in Distributed Generation under Measurement Falsification Attacks

Low-voltage distribution grids experience a rising penetration of inverter-based, distributed generation. In order to not only contribute to but also solve voltage problems, these inverters are increasingly asked to participate in intelligent grid controls. Communicating inverters implement distributed voltage droop controls. The impact of...

A Social Cyber Contract Theory Model for Understanding National Cyber Strategies

Today’s increasing connectivity creates cyber risks at personal, organizational up to societal level. Societal cyber risks require mitigation by all kinds of actors where government should take the lead due to its responsibility to protect its citizens. Since no formal global governance exists, the governmental responsibility should start at the...