A dynamical downscaling approach for the improved  representation of sub-annual coastal sea level variability:  the importance of shelf and slope ocean dynamics

Steinberg, Jacob; Krasting, John; Ross, Andrew

doi:10.5194/os-22-3479-2026

Articles | Volume 22, issue 5

https://doi.org/10.5194/os-22-3479-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Development and deployment of regional ocean configurations...

https://doi.org/10.5194/os-22-3479-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 5

Research article

|

28 Oct 2026

Research article |

| 28 Oct 2026

A dynamical downscaling approach for the improved representation of sub-annual coastal sea level variability: the importance of shelf and slope ocean dynamics

Jacob Steinberg, John Krasting, and Andrew Ross

Data sets

NWA12 and SPEAR model output used in analyses and to generate figures in the manuscript "A dynamical downscaling approach for the improved representation of sub-annual coastal sea level variability: the importance of shelf and slope ocean dynamics'' (Steinberg, Krasting, Ross) [Dataset] Jacob Steinberg https://doi.org/10.5281/zenodo.20415501

Analysis scripts for "A dynamical downscaling approach for the improved representation of sub-annual coastal sea level variability: the importance of shelf and slope ocean dynamics'' (Steinberg, Krasting, Ross) [Dataset] Jacob Steinberg https://doi.org/10.5281/zenodo.23548283

Global Ocean Physics Reanalysis E.U. Copernicus Marine Service Information (CMEMS). Marine Data Store (MDS) https://doi.org/10.48670/moi-00021

Short summary

To improve forecasts, we build and analyze an ensemble of year-long hindcasts of sea level in the northwest Atlantic Ocean. With a focus at US East Coast tide gauge stations, we reveal regional differences in simulated variability resulting from different parent and downscaled ocean model horizontal resolution. We consider differences among parent model, downscaled model, and observed variability as a function of frequency and find downscaled enhancements increase with decreasing latitude.