Temporal trends in shoreline dynamics with forecasting and coastal vulnerability assessment of kuakata area, Bangladesh
DOI:
https://doi.org/10.3329/bjsir.v60i3.81694Keywords:
Shoreline, Erosion, Accretion, ArcGIS, Remote Sensing and GIS Techniques, Forecast, Satellite ImageryAbstract
This study examines the spatiotemporal dynamics of shoreline changes along the Kuakata coast, Bangladesh, over a 30-year period (1991–2021), using geospatial techniques and remote sensing data. Multi-temporal Landsat imagery, including Landsat7ETM, Landsat7ETM+, Landsat8, and 9(OLI), and the Digital Shoreline Analysis System (DSAS) were employed to quantify rates of erosion, accretion, and overall shoreline movement. The highest erosion rate was observed in the central BC part (-13.8 m/year), while the southeastern zone exhibited the highest accretion rate (+25.58 m/year). The total land loss and gain during the study period were calculated at 8 km² and 4.7 km², respectively. Temporal analysis revealed average shoreline movements of -9.68 m/year (1991–2000), -0.98 m/year (2000–2010), and +2.1 m/year (2010–2021). Erosional rates for these periods averaged -13.11 m/year, -6.42 m/year, and -8.38 m/year, while accretion rates were 15.09 m/year, 14.73 m/year, and 18.56 m/year, respectively. Our findings provide actionable insights into erosion mitigation and sustainable coastal management strategies for one of Bangladesh's most dynamic and vulnerable shorelines.
Bangladesh J. Sci. Ind. Res. 60(3), 169-182, 2025
Downloads
122
69
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Bangladesh Council of Scientific and Industrial Research

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Bangladesh Council of Scientific and Industrial Research (BCSIR) holds the copyright to all contents published in Bangladesh Journal of Scientific and Industrial Research (BJSIR). A copyright transfer form should be signed by the author(s) and be returned to BJSIR.
The entire contents of the BJSIR are protected under Bangladesh Council of Scientific and Industrial Research (BCSIR) copyrights.
BJSIR is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC) Creative Commons Attribution-NonCommercial 4.0 International License which allows others remix, tweak, and build upon the articles non-commercially, and although their new works must also acknowledge and be non-commercial, they dont have to license their derivative works on the same terms.