The Sinking City
Learning about urban flooding from Jakarta city case
"What do you know about urban flooding ?"
Flood risk map in Indonesia
Flood Risk Map in Indonesia
Discuss about the definition of "urban flooding"
What is the difference between floods and flooding?
About Jakarta
Jakarta is the largest city and capital of Indonesia. Jakarta lies on the northwest coast of Java at the mouth of the Ciliwung (Liwung River), on Jakarta Bay (an embayment of the Java Sea).
Jakarta consists of 5 regions.
Which of them do you think could be more subjective to urban flooding?
"What are the major causes of urban flooding ?"
Around 40% of Jakarta lies below sea level
(Aseanpost.com, 2018)
"Jakarta sits on the coast on swampy land and is crisscrossed by 13 rivers"
Can you point out three of them? Which region is crossed by most rivers?
"In 2020, Jakarta becomes a home for 10.56 million people"
Which area has the highest urban density? What is the impact of this?
(Left - Population Density Map, Right - Green Spaces Map)
"In 2016, there were 4,720 wells in Jakarta and the number is growing despite regulation to control extraction"
(Aseanpost.com, 2018)
"What is the impact of urban flooding ?"
“I
"It was like the end of the world”
says Nurhayati, dabbing her eyes with the hem of her hijab. On December 31st swollen clouds emptied over Indonesia’s capital, dumping 377 millimetres of rain in one day.
"Jakarta’s flood costs will increase by up to 400% by 2050 "
The flood costs can reach up to Rp 7 trillion (US$ 508,758) annually. (Januriyadi et al., 2018)
Discuss the possible damage and related cost that cause this increase
Degree of severity in Jakarta 2020 Flood
Given the factors above,
"Which region holds the highest risk of urban floodings? and why?"
Thank you! Any Questions?
