A Piecewise Parabolic Method for Estimating Key Parameters in a Three-dimensional Internal Tidal Adjoint Model. Issue 1 (August 2021)

• Record Type: Journal Article
• Authors: Cao, Xianglong; Gao, Wang; Deng, Mingxuan; Li, Ning; Jiang, Dong
• Is Part Of: Journal of physics. Volume 1995:Issue 1(2021)
• Publication Date: 2021-08
• Subjects: Piecewise Parabolic Method -- Tinternal tidal adjoint model -- Open boundary conditions; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1995/1/012055
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A higher-order and conservative Piecewise Parabolic Method was proposed to estimate the open boundary conditions (OBCs) in a 3D internal tidal adjoint model. The interpolation quality was verified by twin experiments. The results showed that the PPM can obtain smoother OBCs than the results obtained by Cressman interpolation. In real experiments, compared with the CI results, the PPM results can reduce the magnitude of misfit vector (m) between the simulated results and the observations of the tidal stations by 5 percent. Meanwhile, the PPM results can simulate the M2 tidal constituent in the northern South China Sea (SCS) more accurate than the Cressman results.