11. Determination of total surface water in Vu Gia - Thu Bon basin
Abstract
The total surface water of the basin is closely related to the river discharge in many areas, playing an important role in the hydrological cycle because it reflects the impact of rainfall and evapotranspiration on each area. Estimating the total surface water volume of the basin not only helps us better manage water resources, but also helps us better understand water resource fluctuations and the water cycle in the basin. In this study, remote sensing, GIS and rainfall - runoff models were used to estimate the total surface water for the Vu Gia - Thu Bon area, one of the major watersheds in Vietnam. The total amount of surface water in the basin determined by the SCS-CN method from rainfall data, soil data, and land cover/land use within geographical information systems (GIS) environment.in 2014 is 71365,5 million m3.
