The Effect of Lateral Boundary Conditions on Results of One-Way Nested Ocean Regional Circulation Model

Van Sy Pham; Jin Hwan Hwang

doi:10.29007/qd69

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The Effect of Lateral Boundary Conditions on Results of One-Way Nested Ocean Regional Circulation Model

8 pages•Published: September 20, 2018

Van Sy Pham and Jin Hwan Hwang

Abstract

This research evaluated two main sources of impact on the results of the ocean regional circulation model (ORCMs) during downscaling and nesting the results from the ocean global circulation model (OGCMs). Representative two sources should be the spatial resolution difference between driving and driven data, and the frequency for up- dating LBCs. The Big-Brother method investigated the effect of them on the results of the ORCMs separately. The results showed that the lateral boundary conditions (LBCs) potentially degraded the results of ORCMs. The errors developed at the boundaries propagate slowly into the center of the nested domain as time passes. The simulation results of the ORCMs significantly depend not only on spatial resolution but also on the frequency for updating the lateral boundary conditions. The ratio resolution of spatial resolution between driving data and driven model can be up to 3 and the updating frequency of the LBCs can be up to every 6 hours per day.

Keyphrases: lateral boundary conditions, ORCMs, sensitivity

In: Goffredo La Loggia, Gabriele Freni, Valeria Puleo and Mauro De Marchis (editors). HIC 2018. 13th International Conference on Hydroinformatics, vol 3, pages 1631--1638

Links:	https://easychair.org/publications/paper/PXkn
	https://doi.org/10.29007/qd69

BibTeX entry

@inproceedings{HIC2018:Effect_of_Lateral_Boundary,
  author    = {Van Sy Pham and Jin Hwan Hwang},
  title     = {The Effect of Lateral Boundary Conditions on Results of One-Way Nested Ocean Regional Circulation Model},
  booktitle = {HIC 2018. 13th International Conference on Hydroinformatics},
  editor    = {Goffredo La Loggia and Gabriele Freni and Valeria Puleo and Mauro De Marchis},
  series    = {EPiC Series in Engineering},
  volume    = {3},
  pages     = {1631--1638},
  year      = {2018},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2330},
  url       = {https://easychair.org/publications/paper/PXkn},
  doi       = {10.29007/qd69}}

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