Download PDFOpen PDF in browserThe Effect of Lateral Boundary Conditions on Results of One-Way Nested Ocean Regional Circulation Model8 pages•Published: September 20, 2018AbstractThis 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.
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