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American Journal of Water Resources. 2020, 8(2), 92-103
DOI: 10.12691/AJWR-8-2-5
Original Research

Estimating of Sediment Load on the Floodplain of Long Xuyen Quadrangle - An Giang, Vietnam

Tran Thi Hong Ngoc1, and Vo Khac Tri2

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

Pub. Date: April 22, 2020
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Cite this paper

Tran Thi Hong Ngoc and 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

Abstract

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).

Keywords

GIS, remote sensing, floodplain, deposited sediment, suspended sediment, Long Xuyen Quadrangle

Copyright

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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