Inversion of two-dimensional tidal open boundary conditions of M2 constituent in the Bohai and Yellow Seas

Anzhou Cao; Zheng Guo; Xianqing Lü

doi:10.1007/s00343-012-1185-9

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Inversion of two-dimensional tidal open boundary conditions of M2 constituent in the Bohai and Yellow Seas

Updated：2023-05-16

- Inversion of two-dimensional tidal open boundary conditions of M2 constituent in the Bohai and Yellow Seas
- Journal of Oceanology and Limnology Vol. 30, Issue 5, Pages: 868-875(2012)
- Affiliations：
  
  1. Laboratory of Physical Oceanography Ocean University of China
  2. National Marine Data and Information Service
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1185-9
  CLC：
- Online First：05 September 2012，
  
  Published：2012
- Accepted：
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Cao, A., Guo, Z. & Lü, X. Inversion of two-dimensional tidal open boundary conditions of M2 constituent in the Bohai and Yellow Seas., Chin. J. Ocean. Limnol. 30, 868–875 (2012). https://doi.org/10.1007/s00343-012-1185-9
DOI：

Cao, A., Guo, Z. & Lü, X. Inversion of two-dimensional tidal open boundary conditions of M2 constituent in the Bohai and Yellow Seas., Chin. J. Ocean. Limnol. 30, 868–875 (2012). https://doi.org/10.1007/s00343-012-1185-9 DOI：

摘要

Abstract

Two-dimensional tidal open boundary conditions of the M2 constituent in the Bohai and Yellow Seas (BYS) have been estimated by assimilating T/P altimeter data. During inversion

independent point (IP) strategy was used

in which several IPs on the open boundary is assumed

values at these IPs can be optimized with an adjoint method

and those at other grid points are determined by linearly interpolating the values at IPs. The reasonability and feasibility of the model are tested by ideal twin experiments. In the practical experiment (PE) after assimilation

the cost function may reach 1% or less of its initial value. Mean absolute errors in amplitude and phase can be less than 5 cm and 5°

respectively

and the obtained co-chart can show the character of the M2 constituent in the BYS. The results of the PE indicate that using only two IPs on the open boundary can yield better simulated results.

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Keywords

references

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