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Earth Institute Research Projects

Life on a Tectonically Active Delta: Convergence of Earth Science and Geohazard Research in Bangladesh with Education and Capacity Building

Lead PI: Dr. Michael S. Steckler , Mr. Leonardo Seeber

Unit Affiliation: Marine Geology & Geophysics, Lamont-Doherty Earth Observatory (LDEO)

June 2010 - August 2018
Inactive
Asia ; India ; Ganges-Brahmaputra-Meghna Delta
Project Type: Research

DESCRIPTION: The project will examine sediments and stratigraphic architecture of the Ganges-Brahmaputra-Meghna Delta as a record of fundamental fluvial and tectonic processes as well as the interactions between them. This will be done by drilling about 250 wells and using electrical resistivity profiles and marine multichannel seismic reflection along rivers and flooded areas to image subsurface features and correlate between wells.

OUTCOMES: So far two journal publications and two websites have been produced.

SPONSOR:

National Science Foundation (NSF)

FUNDED AMOUNT:

$4,770,167

RESEARCH TEAM:

Won-Young Kim

EXTERNAL COLLABORATORS:

Vanderbilt University, University of Minnesota-Twin Cities, Queens College-CUNY, Dhaka University, University of Bremen, Bengal Engineering and Science University, Physical Research Laboratory, Istituto Nazionale di Geofisica e Valcanologia

WEBSITE:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=0968354&HistoricalAwards=false

KEYWORDS

floods risk seismology geology and tectonics electrical resistivity seismic reflection earthquakes wells tectonics sedimentation river avulsion

RELATED ARTICLES

Jan 13, 2020

Completing My Fieldwork and Returning to Dhaka

My last days in the field brought us to monuments in a makeshift home near the ocean, a flooded field next to a school, and adjacent to a jute mill. Most of us now head back to Dhaka, the capital. CĂ©line will stay on a few more days, then Hasnat with Saif and Nahin will continue until all the monuments are resurveyed.

Jan 11, 2020

Long Days in the Field in Southern Bangladesh

We continued our GPS surveys of monuments to measure land subsidence. While the work general went very well, we faced challenges from obscured or tilted monuments. We also struggled with large traffic delays, particularly at unpredictable ferry crossings.

Jan 09, 2020

Installing GPS Around Barisal, Bangladesh

Getting to remote sites started to prove challenging, and involved many forms of transportation by land and water.

Jan 05, 2020

Back to Bangladesh: How Fast is the Delta Sinking?

I am back in Bangladesh once more to investigate the balance between sea level rise, the sinking of the land, and the filling of the space with sediments.

Aug 05, 2019

North to Patuakhali and Barisal for the End of Our Fieldwork

We added a campaign monument to the tide gauge at Khepupara on the way to our last GPS and SET installation site at Patuakhali. We faced challenges such as bad roads and broken bridges, and leeches, but got the work done. The field work was now coming to a close.

Aug 03, 2019

Khulna to Barishal and Kuakata

We replaced the GPS at Khulna University, then met some colleagues in Barisal. We continued to Khepupara and the beach at Kuakata for more installations. The beach on the Bay of Bengal is fresh water in the summer due to the enormous water discharge at the Ganges-Brahmaputra Delta.

Jul 30, 2019

Finishing on the Boat

Silting rivers and bad roads made it difficult to find a last site. After a successful installation and an upgrade to an existing GPS site, we left the boat for land. We then discovered the local river had washed away some of our equipment.

Jul 26, 2019

Hiron Point Once More

We sailed to Hiron Point in the Sundarban Mangrove Forest to upgrade old and install new equipment. I have been to this beautiful remote site several times before. After competing the work, we sailed for over a day to reach our next site on a primary school roof.

Jul 24, 2019

From Sonatola to the Sundarbans

By working a 16-hour day, we managed to get both GPS and SETs completed at our first field site. We then sailed into the Sundarban Mangrove Forest, the world's largest, to visit an existing site and make measurements.

Jul 23, 2019

Delays in Dhaka

I am back in Bangladesh for a new project examining the balance between sea level rise, land subsidence and sedimentation. We will be installing, repairing or upgrading equipment to measure changes to the landscape.