The objective of this study is to map flood vulnerability using Geographic Information System (GIS) integrated with Multi-Criteria Analysis (MCA), and Ranking Method (RM). Flood vulnerability map is a useful tool for decision-makers in indentifying measures to eliminate the impacts of flood. In this study, the research objects are natural factors causing flooding in the catchment such as soil type, rainfall, land use, basin size, and slope. The study was conducted in Thach Han River Basin of Quang Tri Province. Flood vulnerability assessment is based on two phases. Firstly, the effective factors causing flooding are identified. Secondly, the MCA approach in GIS environment is used to map the vulnerability. The results of the analysis show that Da Krong District is vulnerable to floods the most followed by Huong Hoa District. Other districts including Cam Lo, Quang Tri, Dong Ha, Trieu Phong, Da Krong, and Hai Lang are less suffered from flood.
Full text article
. Ngô Chí Tuấn, Trần Ngọc Anh, Nguyễn Thanh Sơn (2009). Cân bằng nước hệ thống lưu vực sông Thạch Hãn tỉnh Quảng trị bằng mô hình MIKE BASIN. Tạp chí khoa học Đại học Quốc gia Hà Nội. Khoa học Tự nhiên và Công nghệ, T.25 số 3S, tr 535 -541, Hà Nội.
. Begun, S, Stive, M., Hall, J (2007). Flood Risk Management in Europe. Innovation in Policy and Practice. Netherland: Springer , ISBN 978-1-4020-4200-3, p.532
. Janet Edwards (2007). Handbook for Vulnerability Mapping. EU Asia ProEco project.
 Monika Blistanova Monika Blistanova, Martina Zeleňáková, Peter Blistan and Vojtech Ferencz (2016), Assessment of flood vulnerability in Bodva river basin, Slovakia. Acta Montanistica Slovaca Volume 21 (2016), number 1, 19-28.
. Yahaya, S., Ahmad, N. and Abdalla, F. R (2010). Multicriteria Analysis for flood vulnerable areas in Hadejia-Jama'are river basin, Nigeria. European Journal of Scientific Research, 42 (1), 71-83, 2010.
. Yalcin, G. and Akyurek, Z. (2004). Analysing flood vulnerable areas with multricriteria evaluation. http://proceedings.esri.com/library/userconf/proc04/docs/pap1097.pdf>.