The causes of riverbank erosion:
Please take a look at the following useful references.
Article An Analysis of the Processes of River Bank Erosion
Article A low-cost technique to measure bank erosion proces ses alon...
There are a variety of techniques to measure on-site or estimate. LiDAR coverage is a substantial tool to georeference channel locations, help identify remotely bank heights, slopes and could be used to document change with time. The WEPP (Water Erosion prediction project) may be useful. To actually measure at locations and then expand estimation to larger channel networks with substantial field surveys, the methods by Dr. David Rosgen using a combination of bank pins, channel chains, Rivermorph software, and his BANCS procedures, some estimation based on field data could be helpful. Rosgen’s paper on j hooks and cross vanes helps to identify approaches other than levees to reduce near bank stress. He has a substantial amount on the internet, references, papers and a few books.
A detailed review and chronological survey is presented of the various techniques which have been used for the measurement of river bank erosion and channel change. The techniques are classified according to the time scales involved (long, intermediate and short) and each is discussed with respect to accuracy and repeatability. The methods covered include sedimentological evidence, botanical evidence, historical sources, planimetric resurvey, repeated cross-profiling, erosion pins and terrestrial photogrammetry. Prospects for future developments are also discussed.
Damian Maurice Lawler, Department
- Centre for Agroecology, Water and Resilience
Research information
- 160 Publications
- 2674 Citations
https://linkinghub.elsevier.com/retrieve/pii/0022169479900052
Dear Md. Nayem Hasan Munna,
You can use RUSLE (A=R.K.L.S.C.P) method using arcGIS software. You can also calculate sediment delivery ratio with this method in a watershed.
There are a number of methods you can employ to measure riverbank erosion such as repeated cross sectional survey, photogrammetry methods, photo electric erosion pins(PEEP) , Lidar technology and the conventional erosion pins. The use of geomorphic assessment by Rosegen may also be helpfull. There are also a number of reviews written by D.M Lawler which are easily accessible in google scholar and other scholarly database.
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