1Faculty of Engineering-Technology-Environment, An Giang University - National University, Ho Chi Minh City, Vietnam. No 18 Ung Van Khiem Street, Dong Xuyen Ward, Long Xuyen City, An Giang Province, Vietnam
2The Southern Institute of Water Resources Research, 658 Vo Van Kiet Street, Ward 1, District 5, Ho Chi Minh City, Vietnam
American Journal of Water Resources.
2020,
Vol. 8 No. 2, 92-103
DOI: 10.12691/ajwr-8-2-5
Copyright © 2020 Science and Education PublishingCite this paper: Tran Thi Hong Ngoc, Vo Khac Tri. Estimating of Sediment Load on the Floodplain of Long Xuyen Quadrangle - An Giang, Vietnam.
American Journal of Water Resources. 2020; 8(2):92-103. doi: 10.12691/ajwr-8-2-5.
Correspondence to: Tran Thi Hong Ngoc, Faculty of Engineering-Technology-Environment, An Giang University - National University, Ho Chi Minh City, Vietnam. No 18 Ung Van Khiem Street, Dong Xuyen Ward, Long Xuyen City, An Giang Province, Vietnam. Email:
tthngocagu@gmail.comAbstract
This paper presents the result of suspended and deposited sediment measurements on the floodplain of Long Xuyen Quadrangle-An Giang (LXQ-AG) along the Cambodia - Vietnam border during a flood event in 2018. GIS and Remote sensing techniques were used to build maps for the flooded areas. Water level and discharge were also measured on main channels and on the floodplain. The two correlation equations between deposition sediment, Suspended Sediment concentration (SSC) and discharge were build. The results of Landsat interpretting showed that inundation area of the floodplain was 35,765 ha. SSC and deposited sediment decreased with distance from the main channels. The results showed thattotal deposited sediment mass brought to the floodplain during a single flood event in 2018 was 5.023 million tons (14.04 kg/m2).
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