Earth Observatory Blog

Submitted on 15 Aug 2018 by:

A one-metre rise in sea level could dramatically increase the frequency of flooding up to almost five times for tsunami-safe Macau, in a new study led by scientists from Nanyang Technological University, Singapore (NTU Singapore). 

The team of scientists from NTU’s Earth Observatory of Singapore (EOS) and Asian School of the Environment (ASE), used computer modelling, and initially showed that Macau, a densely populated coastal city in China, is relatively safe from tsunamis as it requires an earthquake larger than 8.8-magnitude to cause widespread tsunami floods.

However, with just a sea level rise of 0.5 metres, the tsunami-induced flood risk increases to up to 2.4 times and with a 1 metre rise, up to 4.7 times. 

The increased flooding frequency was...

Submitted on 06 Nov 2017 by:

Typhoon Hato–one of the strongest typhoons in 53 years–struck the coasts of southern China on August 23, 2017. The typhoon, which claimed 26 lives and resulted in billions of dollars in economic losses, generated widespread storm surge flooding in the coastal cities of Macau and Zhuhai as it coincided with an usually high astronomical tide.

While Macau and its neighbouring city, Zhuhai, frequently experience storm events, the severity of flooding during Hato was the worst in recorded history.

Three days after the event, our survey team–a collaboration between the Earth Observatory of Singapore (EOS), National University of Singapore (NUS), and Tsinghua University–was deployed to Macau and Zhuhai to investigate the impacts left by Typhoon Hato.

The...