[MUSIC]
Welcome to Waseda University.
Hello, I am Tomoya Shibayama.
I'm a professor in the Department of Civil and Environmental Engineering at Waseda.
On March 11, 2011, a big tsunami
attacked the coastal areas of the northeastern part of Japan.
The tsunami flooded over land, and
devastated the local communities in the areas.
First, tsunami ran up through river and flooded over land.
Also tsunami flooded over coastal line and destroyed paddy fields and houses.
If we see offshore, tsunami wave broke and proceeded to shore as bore like wave.
The third or fourth waves attacked continuously.
In the history of the world, the Indian Ocean tsunami in 2004 and
the Chilean tsunami in 2010 are among the recent ones.
The first tsunami recorded in Japan is Hakuho Tsunami in 684,
over 1,300 years ago.
In this course,
we will learn about coastal disasters including tsunami and storm surge.
Since Japan has long disaster experiences and
has achievements of disaster prevention research for a long time,
we believe it is worthwhile to deliver our knowledge to foreign countries including
developing countries in Asia and Africa from Waseda.
We would like to contribute for
improvements of disaster preparedness over the world.
In order to learn realities of disasters,
we need to use the following three basic methods.
The first one is field surveys.
These are the photos of Sri Lanka and Indonesia for
Indian Ocean tsunami in 2004.
The Tohoku tsunami in 2011 and
the storm surge Nargis in Myanmar in 2008.
The second one is numerical simulations.
And this is calculated typhoon route in Japan after
global warming, and possible tsunami comes to Tokyo Bay.
The third one is hydraulic laboratory experiments.
This is wave basin experiment for tsunami flow over coastal dike.
And wave flume experiment for velocity field for flooded water.
By using these three methods, we will analyze coastal disasters and
will propose effective countermeasures to protect residents in coastal areas.
Please join our course for coastal disasters.
We are waiting for you in Waseda.