Adding sea ice effects to a global operational model (NEMO v3.6) for forecasting total water level: approach and impact

Wang, Pengcheng; Bernier, Natacha B.

doi:https://doi.org/10.5194/gmd-16-3335-2023

Articles | Volume 16, issue 11

https://doi.org/10.5194/gmd-16-3335-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-16-3335-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 11

Development and technical paper

|

14 Jun 2023

Development and technical paper |

| 14 Jun 2023

Adding sea ice effects to a global operational model (NEMO v3.6) for forecasting total water level: approach and impact

Pengcheng Wang and Natacha B. Bernier

Supplement

https://doi.org/10.5194/gmd-16-3335-2023-supplement

Data sets

Marine Environmental Data Section Archive DFO https://www.meds-sdmm.dfo-mpo.gc.ca/isdm-gdsi/twl-mne/maps-cartes/inventory-inventaire-eng.asp?user=isdm-gdsi&region=MEDS&tst=1&perm=0

Tides & water levels National Oceanic and Atmospheric Administration https://tidesandcurrents.noaa.gov/stations.html?type=Water+Levels

Sea level measured by tide gauges from global oceans - the Joint Archive for Sea Level holdings (NCEI Accession 0019568), Version 5.5 P. C. Caldwell, M. A. Merrifield, and P. R. Thompson https://doi.org/10.7289/V5V40S7W

In situ near real time sea level data European Marine Observation and Data Network https://emodnet.ec.europa.eu/geoviewer

In-situ measurements of ice and surface current velocities collected at an offshore mooring J. Thomson, E. Eidam, and L. Hosekova http://hdl.handle.net/1773/47139

Fast ice extent U.S. National Ice Center https://doi.org/10.7265/46cc-3952

Model code and software

NEMO v3.6 with the addition of the parameterized ice-ocean stress P. Wang https://doi.org/10.5281/zenodo.7662916

Short summary

Effects of sea ice are typically neglected in operational flood forecast systems. In this work, we capture these effects via the addition of a parameterized ice–ocean stress. The parameterization takes advantage of forecast fields from an advanced ice–ocean model and features a novel, consistent representation of the tidal relative ice–ocean velocity. The new parameterization leads to improved forecasts of tides and storm surges in polar regions. Associated physical processes are discussed.