You may know that coastal regions of Bangladesh are irregular. As far my knowledge, there are very scanty of records on it. I am interested to study the coastal morphological phenomenon of this coast. If anyone of you have any experience regarding this matter, please share your experience.
You can use historical maps (digitized and converted into GIS layers) or available GIS layers and overlay them in GIS to show change in shape over time. You can perform comprehensive topographical survey periodically to show erosion and accretion over time.
Thanks for your answers. How to measure the quantitative changes (area) in case of GIS analysis?
You can build a polygon of the shape of your study area and measure the area of this polygon. If you measure the area over time, you can obtain the quantitative change over time.
Thanks Aurin, for your suggestions. Could you suggest anything more about coast of Bangladesh?
I will reply you after going thoroughly those two recommended papers.
You can use the methodology developped in the following paper:
Gratiot, N., Anthony, E. J., Gardel, A., Gaucherel, C., Proisy, C. & Wells, J.T., 2008. Significant contribution of the 18.6 year tidal cycle to regional coastal changes. Nature Geoscience, 1, 169-172.
and contact Edward Anthony for that purpose.
Simply use time series satellite imagery for instance landsat, for doing this particular task , you could take help from geologist
Hello,
We can use numerical modelling as TELEMAC, MIKE DHI, and DELFT 3D, .... to study the coastal morphology.
Best regard,
V.V. Than
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