Estuarine and Coastal Environment, Coastal Engineering, Coastal Management, Sustainability Science

Research Topics

Severe salinity contamination in drinking water and associated human health hazards increase migration risk in the southwestern coastal part of Bangladesh

Bangladesh is a deltaic country and it is highly vulnerable to climate change and sea level rise. The southwestern part of this country is repeatedly devastated by cyclonic storm surges which create long-term waterlogging, flooding’s, and salinity problems. After the cyclone Sidr in 2007 and Aila in 2009, salinity problems in groundwater have significantly increased where groundwater is a principal source of drinking water in the coastal community. After the continuing consequences of salinity contamination and consumption of those types of water, local peoples are suffering from several types of health diseases. Average household health expenditure is significantly increased and it exerts more pressure on their vulnerable household economy. Thus, …

ENPC-UTokyo Joint Workshop

ENPC-UTokyo Joint Workshop was held on December 3, 2018, at the University of Tokyo. ENPC or Ecole des Ponts ParisTech is the best university or graduate level school in France. One of the major topics is about water quality problems in Odaiba Seashore Park, Tokyo Port in Tokyo Bay, where long-distance swimming games and triathlon games are going to be performed in the 2020 Olympic-Paralympic games. This is also a common topic in Seine river in Paris where the 2024 Olympic-Paralympic games are going to be held. In Sasaki’s lab, collaborating with ENPC, countermeasures against the water quality problem in Odaiba Seashore Park will be studied by employing numerical computation …

Presentation at 20th Anniversary Symposium of our graduate school

Mr. Endo, Ph.D. candidate, presented a poster and gave a flash talk at 20th Anniversary Symposium of Graduate School of Frontier Sciences, the University of Tokyo on October 31, 2018. The title is Inluence of Blue Tide on Fishing Ground and its Mitigation Measures in Tokyo Bay

An investigation of coastal vulnerability and internal consistency of local perceptions under climate change risk in the southwest part of Bangladesh

Bangladesh is one of the most disaster-prone countries, while climate change and its associated hazards such as cyclonic storm surges, inundation, and salinity threats force disruption of coastal communities. Gradually, coastal communities are going to lose their existing livelihoods owing to the regular interruptions of coastal hazards such as high salinity problems in soil and water. In this situation, it is important to secure the coastal lifestyle by investigating the social vulnerabilities and possible policy practices along the coastal belt communities of Bangladesh. Publication Rakib, M. A., Sasaki, J., Palc, S., Md. Asif Newazd, Md. Bodrud-Dozae, Mohammad Amir Hossain Bhuiyan. An investigation of coastal vulnerability and internal consistency of local …

19th Tokyo Bay Symposium

The 19th Tokyo Bay Symposium (sponsored by National Research Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure, Transport and Tourism) was held at Osanbashi Bridge Hall in Yokohama Port on October 18 (Thu), 2018. Professor Sasaki gave a lecture entitled “Possibility of Blue Carbon and its Social Implementation”, and Mr. Endo, Ph.D. candidate made a poster presentation entitled “Field survey on upwelling of hypoxic water in Sanbanze Shallow Water Area at the head of Tokyo Bay”. It was a great success with about 300 participants.

Perspectives on measures for adaptively managed erosive shorelines: A case study in Sri Lanka

Beach erosion is a treat to both properties and livelihoods of coastal communities. When the mechanisms of beach erosion are unclear, erosive shorelines are adaptively managed. The success of adaptive management depends on the interpretation of the archived data of each feedback loops. Archived data are limited or difficult to access in developing countries due to lack of budget, technical expertise, institutional coordination etc. Figure 1: Photos of shore next to a tourist hotel after beach nourishment in 2016 December (Photos were taken during my recent field visits) Historical changes in the shoreline and management of Marawila Beach, Sri Lanka, from 1980 to 2017 Coastal management in Sri Lanka is …