Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the regional ocean modeling system. Systematic improvements in algorithmic design of regional ocean circulation models have led to significant enhancement in simulation ability across a wide range of space/time scales and marine system types. As an example, we briefly review the Regional Ocean Modeling System, a member of a general class of three-dimensional, free-surface, terrain-following numerical models. Noteworthy characteristics of the ROMS computational kernel include: consistent temporal averaging of the barotropic mode to guarantee both exact conservation and constancy preservation properties for tracers; redefined barotropic pressure-gradient terms to account for local variations in the density field; vertical interpolation performed using conservative parabolic splines; and higher-order, quasi-monotone advection algorithms. Examples of quantitative skill assessment are shown for a tidally driven estuary, an ice-covered high-latitude sea, a wind- and buoyancy-forced continental shelf, and a mid-latitude ocean basin. The combination of moderate-order spatial approximations, enhanced conservation properties, and quasi-monotone advection produces both more robust and accurate, and less diffusive, solutions than those produced in earlier terrain-following ocean models. Together with advanced methods of data assimilation and novel observing system technologies, these capabilities constitute the necessary ingredients for multi-purpose regional ocean prediction systems.

References in zbMATH (referenced in 29 articles , 1 standard article )

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  1. Zhang, Yinglong J.: Assessment of subgrid method in a finite-volume model (2021)
  2. Duran, Arnaud; Vila, Jean-Paul; Baraille, Rémy: Energy-stable staggered schemes for the shallow water equations (2020)
  3. Holm, Håvard H.; Sætra, Martin L.; Brodtkorb, André R.: Data assimilation for ocean drift trajectories using massive ensembles and GPUs (2020)
  4. Penney, Jared; Morel, Yves; Haynes, Peter; Auclair, Francis; Nguyen, Cyril: Diapycnal mixing of passive tracers by Kelvin-Helmholtz instabilities (2020)
  5. Demange, Jérémie; Debreu, Laurent; Marchesiello, Patrick; Lemarié, Florian; Blayo, Eric; Eldred, Christopher: Stability analysis of split-explicit free surface ocean models: implication of the depth-independent barotropic mode approximation (2019)
  6. Naghibi, S. Elnaz; Karabasov, Sergey A.; Jalali, Mir A.; Sadati, S. M. Hadi: Fast spectral solutions of the double-gyre problem in a turbulent flow regime (2019)
  7. Arcucci, R.; Carracciuolo, L.; Toumi, R.: Toward a preconditioned scalable 3DVAR for assimilating sea surface temperature collected into the Caspian Sea (2018)
  8. Sullivan, Peter P.; McWilliams, James C.: Frontogenesis and frontal arrest of a dense filament in the oceanic surface boundary layer (2018)
  9. van den Bremer, T. S.; Breivik, Ø.: Stokes drift (2018)
  10. Couderc, F.; Duran, A.; Vila, J.-P.: An explicit asymptotic preserving low Froude scheme for the multilayer shallow water model with density stratification (2017)
  11. Deng, Baoqing; Wang, Junye: Saturated-unsaturated groundwater modeling using 3D Richards equation with a coordinate transform of nonorthogonal grids (2017)
  12. Duran, Arnaud; Vila, Jean-Paul; Baraille, Rémy: Semi-implicit staggered mesh scheme for the multi-layer shallow water system (2017)
  13. Owen, N. E.; Challenor, P.; Menon, P. P.; Bennani, S.: Comparison of surrogate-based uncertainty quantification methods for computationally expensive simulators (2017)
  14. Conroy, Colton J.; Kubatko, Ethan J.: (hp) discontinuous Galerkin methods for the vertical extent of the water column in coastal settings part I: barotropic forcing (2016)
  15. Rajpoot, Manoj K.: Dispersion analysis of robert-asselin type filters for linear non-dispersive and dispersive systems (2016)
  16. Chen, Wei-Bo; Liu, Wen-Cheng; Hsu, Ming-Hsi; Hwang, Chi-Chuan: Modeling investigation of suspended sediment transport in a tidal estuary using a three-dimensional model (2015)
  17. Mulloth, Akhil; Sawant, Nilesh; Haider, Ijlal; Sharma, Nidhi; Sengupta, Tapan K.: High accuracy solution of bi-directional wave propagation in continuum mechanics (2015)
  18. Williams, Matthew O.; Rypina, Irina I.; Rowley, Clarence W.: Identifying finite-time coherent sets from limited quantities of Lagrangian data (2015)
  19. Leeds, W. B.; Wikle, C. K.; Fiechter, J.: Emulator-assisted reduced-rank ecological data assimilation for nonlinear multivariate dynamical spatio-temporal processes (2014)
  20. Tang, H. S.; Qu, K.; Wu, X. G.: An overset grid method for integration of fully 3D fluid dynamics and geophysics fluid dynamics models to simulate multiphysics coastal ocean flows (2014)

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