INTEGRATING EXPERIMENTING OF MARINE MODEL AND ONE DIMENSION KINEMATIC WAVE MODEL ON CAI NHA TRANG RIVER BASIN

Abstract

MARINE model is a hydrological parametric distribution model developed by Toulouse Institute of Fluid Mechanics (France) and used in many countries. The model has been applied in Viet Nam since 2001 as part of the FLOCODS project, used in projections in the Da river basin. MARINE model is a physical distribution model of rainfall-runoff model, simulating flood flow on steep slopes but the flow calculation in the river is not complete, other models need to be used to simulate. There have been a number of studies using the Muskingum, Muskingum Cunge and IMECH1D one dimension hydraulic model to connect the flow simulation in the river, but some issues need to be further improved. In this research, we present some solutions to integrate MARINE model and one-dimension Kinematic model to improve the quality of MARINE simulation model and supplement the flow calculation in the river. In particular, the linear one-dimensional Kinematic wave model has been developed to calculate the flow for the river sections in the MARINE model and to be the initial condition for the non-linear Kinematic wave model, improving MARINE to calculate flow of many tributaries as the basis for integration with the non-linear Kinematic wave model for the river network. The integrated model set tested on the Cai Nha Trang river basin shows that it is easy to operate and gives better simulation results.