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Vuong, T. K., Trinh, L. H., & Hoang, N. H. (2020). Research for the impact of sand and gravel mining on Chu river bank change (in the intersection at Tho Xuan district, Thanh Hoa province) using remote sensing data. Journal of Geodesy and Cartography, (44), 5–10. https://doi.org/10.54491/jgac.2020.44.297
Abstract
In recentyears, the widespread mining of sand and gravel have led to serious erosion ofthe banks of major rivers in Vietnam. This paper presents the results ofshoreline changes in the section of Chu river, which running through Tho Xuandistrict (Thanh Hoa province) in period 2015 - 2020 from remote sensing data.02 Sentinel-2A satellite images taken on 01/12/2015 and 09/03/2020 were used toextract the water/land boundary based on the Automated Water Extraction Index(AWEI), then overlay to detect change in riverbank condition. The resultsshow that, the Chu river bank has complicated change in period 2015 - 2020,including erosion and accretion processes. The maximum erosion rate is up to 37 m/year in the center of the study area, where sand and gravel ships areconcentrated. The results obtained in the study can provide information to helpmanagers in monitoring the riverbank change of Chu river, as a basis forassessing the impact of mining process on riverbank.
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