Abstract
This paper presents research result on Red river bank changes in Hà Nội area by analysis of remote sensing data, compare with the actual observation results and some existing maps (topographic and land-used maps). The result showed that phenomenon deposition varied over the years as well as the different stages of the year. During the period 1996-2003, deposition area is 26.3 km2 located along the right bank in Ba Vì, north of Đan Phượng, Mê Linh, and Đông Anh districts, metropolitan area; erosion area equals 11.7 km2, located along Vĩnh Phúc Province, opposite Ba Vì district, Phúc Thọ district and the South of Mê Linh district. During the period 2003-2011, deposition area was 11.2 km2 distributed mainly in Vĩnh Phúc Province, Phúc Thọ and the South of Mê Linh districts; erosion area was 23.8 km2 scattered from Ba Vì district to the Central city. During the period 2011-2013, deposition process occurred weakly, approximately 0.6 km2; erosion occurred sharply at the left bank of Ba Vì and scattered in Phúc Thọ, Đan Phượng and Thanh Trì districts, around 14.8 km2.