Impact of Human Intervention and Sea Level Rise on Water-Logging Scenarios inside Polders-24 And 25 of Bangladesh

Authors

  • Jamal M Haider Water Resources Planning Organization, 72 Green Road, Dhaka121, Bangladesh
  • Haque M Aminul Water Resources Planning Organization, 72 Green Road, Dhaka121, Bangladesh
  • Hossain Md Jahid Water Resources Planning Organization, 72 Green Road, Dhaka121, Bangladesh
  • Haque Anisul Institute of Water and Flood Management, BUET, Dhaka1000, Bangladesh

DOI:

https://doi.org/10.3329/jes.v12i3.57481

Keywords:

Climate Chang, Dredging, Polder, Sea Level Rise, Sedimentation, Water-Logging

Abstract

Coastal region of Bangladesh possesses a fragile ecosystem and is exposed to hazards like cyclones, floods, storm surges, and water-logging. A detail understanding on the impact of water-logging due to various natural, man-made and climate change scenarios is still lacking. Considering this research gap, the present research is aimed to study impacts of these scenarios inside polders-24 and 25 which are situated on the western part of the coastal region. In this Study as natural scenario, sedimentation in the Hari River; as man-made scenario, new polders in the south-central region and as SLR scenario, an extreme sea level rise of 1.48m are considered. Long-term satellite images are analyzed, and numerical model is applied in the study area. The result shows that water-logging is more acute inside polder-25 compared to polder-24. Sedimentation in Hari River aggravates the water-logging condition. Dredging in Hari River does improve the situation.

Journal of Engineering Science 12(3), 2021, 73-83

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Published

2022-01-10

How to Cite

Haider, J. M. ., Aminul, H. M., Md Jahid, H. ., & Anisul, H. . (2022). Impact of Human Intervention and Sea Level Rise on Water-Logging Scenarios inside Polders-24 And 25 of Bangladesh. Journal of Engineering Science, 12(3), 73–83. https://doi.org/10.3329/jes.v12i3.57481

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