Evaluation of the changes of the shoreline in Cua Tung in Quang Tri province before and after the construction of groin on the south riverbank of Ben Hai river

Trinh Thi Giao Chau, Hoang Thi Binh Minh, Hoang Ngoc Lin

Abstract


The process of erosion-sedimentation of Cua Tung, Quang Tri province has been mentioned in previous studies, but there have been no studies that apply satellite images to evaluate the changes of shoreline before and after the construction of groin along the south of Ben Hai river. This paper aims to evaluate the changes and rate of erosion - sedimentation of Cua Tung shoreline before and after the construction, using Landsat satellite images from 1990 to 2017. We used Envi 5.0 to analyse and interpret multiple-spectral Landsat satellite images in combination with analysis algorithm to identify the shoreline change over the years by adopting the ratio image method by Gathot Winasor to separate water zone and shoreline zone automatically. We then calculated the rate of shoreline changes by the function DSAS (Digital Shoreline Analysis System) proposed by Thieler et al., in Avenue programming language in ArcView software. The results showed that the process of erosion-sedimentation in Cua Tung-Quang Tri from 1990 to 2017 was divided into 6 stages in which the stage of 2000–2005 had the clearest indication in the process of erosion-sedimentation. This research has demonstrated that GIS and remote sensing technologies have been good tools to assist policy maker in their decision-making to properly evaluate erosion-sedimentation in Cua Tung- Quang Tri, so that appropriate solutions will be delivered to guarantee the local socio-economic sustainable development.

Keywords


Cua Tung - Quang Tri, erosion-sedimentation, GIS and remote sensing.

Full Text:

PDF

References


Nguyen Tho Sao, Tran Ngoc Anh, Nguyen Thanh Sơn, Dao Van Giang, 2010. Impact assessment of construction on hydrodynamics in estuaries along the Ben Hai, Quang Tri. Journal of VNU Science, Natural Science and Technology, 26(3S), 435–442.

Pham Thi Phuong Thao, Ho Dinh Duan, 2012. Monitoring shoreline change in the coastal area in Quang Tri, Vietnam by using remote sensing and GIS. Proceedings International Symposium on GeoInformatics for Spatial - Infrastructure Development in Earth and Alliead Sciences.

Ngo Chi Tuan, Nguyen Y Nhu, Trinh Minh Ngoc, 2014. Application of LITPACK model in the study of shoreline changes of Cua Tung beach. Journal of VNU Science: Earth and Environment Sciences, 30(3), 49–54.

Nguyen Thanh Trung, Bui Huy hieu, Lu Ngoc Lam, 2012. The causes, damage mechanisms and solutions to repair and upgrade Cua Tung sea embankment - Quang Tri province. Journal of Water Resources Science and Technology, (11), 55–63.

Thieler, E. R., Martin, D., and Ergul, A., 2003. The digital shoreline analysis system, version 2.0: shoreline change measurement software extension for Arcview. US Geological Survey Open-File Report, 3, 076.

US Army Corps of Engineers, 2003. Engineering and Design: Remote Sensing. Engineer Manual No. 1110-2-2907.

https://www.google.com/maps.




DOI: https://doi.org/10.15625/1859-3097/19/4/12288 Display counter: Abstract : 52 views. PDF : 21 views.

Editorial Office:

Vietnam Journal of Marine Science and Technology

1st Floor, A16 Building, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam

Tel: (+84) 024 3791 7411

E-mail: jmst@vjs.ac.vn