Cycle 1 (2011 Deadline)
Toward geohazard assessment in Bangladesh: academic infrastructure and knowledge transfer
PI: Syed Humayun Akhter, Dhaka University
U.S. Partner: Michael Steckler, Columbia University
Project Dates: May 2012 - April 2015
Situated at the junction of three tectonic plates and overlying the world’s largest delta, Bangladesh is one of the most natural disaster prone countries in the world. This rapidly developing nation is undergoing rampant urbanization and has a population of more than 150 million, about half the population of the United States, crowded into an area the size of Iowa. There are frequent water-related natural disasters including widespread seasonal floods, recurrent tropical cyclones with large storm surges, river erosion and channel avulsions, permanent land loss from sea level rise, and natural groundwater arsenic. These have overshadowed the severe hazard from rare, but devastating earthquakes, which have not received the attention commensurate with their considerable risk. To address seismic and other natural hazards, this project proposes creating a sediment sample and data storage facility and transferring knowledge to the local geoscience and engineering communities through training courses. This should increase local capacity to evaluate and mitigate hazards and will also contribute to the U.S. partner's ongoing NSF-supported research.
There is currently no place to archive sediment samples in Bangladesh. Encouraged by the success of the small seismology training facility previously established under a PEER pilot program grant, this project now proposes to renovate, furnish, and equip space donated by Dhaka University into a fully functioning center. The team anticipates jumpstarting the facility by storing samples from the more than 250 wells being drilled as part of the U.S. partner's NSF-funded project. The sample repository will be open to all Bangladeshi researchers to store samples and analyze results regarding a multitude of hazards, including earthquakes, sea level rise, land subsidence, arsenic contamination, and river avulsions. The project will also involve a workshop in Bangladesh on the tectonic and sedimentological background related to earthquake geology, including a field component that will teach site selection techniques. This will help establish a new line of research in Bangladesh to help trainees begin a coordinated countrywide effort to recover the geologic record of earthquakes in Bangladesh, and create a new generation of students able to apply earthquake geology techniques. Two other workshops will be also be organized, one focusing on seismic processing and interpretation and the other on seismic hazard mapping and its role in disaster risk management and creation of seismic building codes. Through creation of the new center and the associated training activities, the project should help to bring up-to-date knowledge to geoscientists, engineers, and government administrators in Bangladesh in order to integrate these disparate groups and facilitate resilience against seismic hazard threats.
Summary of Recent Activities
The research team organized a four-day training course on “Seismic interpretation in fold-and-thrust belts using fault-related folding techniques,” which was held July 22-25, 2013, at the Faculty of Earth and Environmental Sciences, Dhaka University. Organized in collaboration with the Earth Observatory of Singapore (EOS) of the Nanyang Technological University, the course was presented by Dr. Judith Hubbard and Dana Peterson of EOS and attended by students, faculty, research staff, and the general public. The course was structured in a guided exercise format, and the participants were able to engage by directly interpreting high-quality seismic reflection imagery using quantitative techniques. During the past quarter, the research team also acquired software for seismic reflection data interpretation, which they plan to use for graduate student training. Two new graduates have been selected to work on the team’s “Sediment Sample Repository and Data Bank” project, and they are currently preparing metadata and are cataloging the sediment samples for the BanglaPIRE project. Saiful Islam and Masud Molla, who received training at Columbia University in April 2013, have trained Md. Azizul Hassan and Md. Mohabbat Hossain, the two newly recruited students working on the repository and data bank portion of the project. Two more female graduates are expected to be recruited to take part in the project in November 2013 as well. Going forward, the research team is planning to acquire additional equipment, including a laser particle size analyzer.