Ưng dụng mô hình thủy động lực 3 chiều FVCOM tính toán chế độ thủy động lực và cấu trúc nhiệt cửa sông Nhật Lệ - Quảng Bình

Abstract

A open-source three-dimensional unstructured-grid numerical model FVCOM has been applied to examine circulation, wave, and thermal structure in the Nhat Le estuary, Quang Binh province. The model used meteorological data downscalling from WRF model for the simulation year of 2009 and 2018. The simulation results were tested against ADCP observations of currents and wave. The results show that mean currents direction was predominantly SE and NW. There were clockwise circulation in the adjacent of the estuary while a larger anti-clyclonic offshore. The spacial variation of water temperature was found with higher temperature onshore and lower temperture at offshore with the difference can be 1.0 to 2.5 degree C. Data including current and wave measured by ADCP instruments.

Key words: FVCOM, WRF, hydrodynamic model, thermal structure, circulation