Tides simulated by the global ocean model ICON-O in various set-ups

Hertwig, Eileen; von Storch, Jin-Song; Haak, Helmuth; Lüschow, Veit

Tides simulated by the global ocean model ICON-O in various set-ups

doi:10.26050/WDCC/Tides_ICON-O

Hertwig, Eileen et al.

ExperimentDOI

harmonic analysis ICON ocean simulation ocean tides

Summary: For the development of the earth-system model ICON, carried out at the Max-Planck Institute for Meteorology in cooperation with the German meteorological service (DWD), the ocean compartment plays a major role. It is now used to push the frontiers of simulating the climate based on first principles by resolving its major energetic motions, including those at small scales such as eddies and waves in the ocean. This new development, however, still requires substantial efforts. One such a process is internal tides that are generated as (barotropic) tides flow over topographic features such as underwater ridges and sea mounts. To ensure a realistic representation of internal tides, one needs to make sure that the model used is capable to realistically simulate the tides. A set of experiments has been carried to assess the ability of ICON-O to simulate open ocean tides.

Tides are tested in the global ocean model ICON-O in various horizontal resolutions: R2B6 (40km), R2B8 (10km), and BCT (BaseCampTelescope: a telescoping -inhomogeneous- grid ranging from 80km to 8km with a focus region in the South Atlantic).
All runs are performed with a relatively high vertical resolution (128 vertical levels) and additionally the vertical coordinate z* is used and different heights of top levels are applied.

To improve the simulated tides two new parameterizations are introduced in ICON-O. Self-Attraction and Loading (SAL) and a parameterization for Tidal-Bottom-Drag (TBD) are introduced individually and together in all 3 horizontal resolutions.

100 years of spin-up simulations with OMIP forcing and without tides have been performed for all set-ups. After the climate has spun-up reasonably, 3 more years of simulation now with tides have been performed. For the tides to spin-up, only the last year is evaluated. The raw model output (hourly sea surface elevation) and the spin-up runs are also available (see references).

One year (the last) of the ICON-O simulation with tides is analyzed by the least-square-fitting method of Foreman et al. (2009). From this harmonic analysis the harmonic constants of the eight major diurnal and semi-diurnal tidal constituents (M2, S2, N2, K2, K1, O1, P1, and Q1) are derived. Phases and amplitudes on the original ICON-O grid (XX_harmonics.nc) and a regridded regular 0.1-degree grid (XX_harmonics_r3600x1800.nc) are archived.
Project: SMT-Wave (Interaction between submesoscale eddies and internal waves)
Contact: Dr. Eileen Hertwig (
hertwig@nulldkrz.de
0000-0002-7853-7022)
Location(s): global
Spatial Coverage: Longitude -180 to 180 Latitude -90 to 90
Use constraints: Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/)
Data Catalog: World Data Center for Climate
Size: 7.22 GiB (7750295744 Byte)
Format: NetCDF
Status: completely archived
Creation Date: 2022-09-13
Future Review Date: 2032-09-15

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Cite as: Hertwig, Eileen; von Storch, Jin-Song; Haak, Helmuth; Lüschow, Veit (2022). Tides simulated by the global ocean model ICON-O in various set-ups. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/Tides_ICON-O

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FAIR

F-UJI result: total 66 %

Description: Summary:
Findable: 6 of 7 level;
Accessible: 2 of 3 level;
Interoperable: 3 of 4 level;
Reusable: 5 of 10 level
Method: F-UJI online v1.1.1 automated
Method Description: Checks performed by WDCC. Metrics documentation: https://doi.org/10.5281/zenodo.4081213 Metric Version: metrics_v0.4
Method Url: https://www.f-uji.net
Result Date: 2022-10-14

Scientific Quality Assurance (SQA)

SQA - Scientific Quality Assurance 'approved by author'

Result Date: 2022-10-14

Technical Quality Assurance (TQA)

TQA - Technical Quality Assurance 'approved by WDCC'

Description: 1. Number of data sets is correct and > 0: passed;
2. Size of every data set is > 0: passed;
3. The data sets and corresponding metadata are accessible: passed;
4. The data sizes are controlled and correct: passed;
5. The spatial coverage description (metadata) is consistent to the data: passed;
6. The format is correct: passed;
7. Variable description and data are consistent: passed
Method: WDCC-TQA checklist
Method Description: Checks performed by WDCC. The list of TQA metrics are documented in the 'WDCC User Guide for Data Publication' Chapter 8.1.1
Method Url: https://www.wdc-climate.de/docs/WDCC_User_Guide_Data_v1.pdf
Result Date: 2022-10-14

Contact type	Person	ORCID	Organization
Contact	Dr. Eileen Hertwig	0000-0002-7853-7022	Deutsches Klimarechenzentrum
Author	Dr. Eileen Hertwig	0000-0002-7853-7022	Deutsches Klimarechenzentrum
Author	Dr. Jin-Song von Storch	0000-0002-2308-6834	Max-Planck-Institut fuer Meteorologie
Author	Dr. Helmuth Haak	0000-0002-9883-5086	Max-Planck-Institut fuer Meteorologie
Author	Dr. Veit Lüschow	0000-0002-4890-5429	Max-Planck-Institut fuer Meteorologie
Investigator	Dr. Eileen Hertwig	0000-0002-7853-7022	Deutsches Klimarechenzentrum

Is cited by

[1] DOI von Storch, Jin-Song; Hertwig, Eileen; Lüschow, Veit; Brüggemann, Nils; Haak, Helmuth; Korn, Peter; Singh, Vikram. (2023). Open-ocean tides simulated by ICON-O, version icon-2.6.6. doi:10.5194/gmd-16-5179-2023

Is compiled by

[1] DOI Korn, Peter. (2022). ICON-O: The Ocean Component of the ICON Earth System Model - Global Simulation Characteristics and Local Telescoping Capability. doi:10.1002/essoar.10509949.1

[2] DOI Jungclaus, J. H.; Lorenz, S. J.; Schmidt, H.; Brovkin, V.; Brüggemann, N.; Chegini, F.; Crüger, T.; De‐Vrese, P.; Gayler, V.; Giorgetta, M. A.; Gutjahr, O.; Haak, H.; Hagemann, S.; Hanke, M.; Ilyina, T.; Korn, P.; Kröger, J.; Linardakis, L.; Mehlmann, C.; Mikolajewicz, U.; Müller, W. A.; Nabel, J. E. M. S.; Notz, D.; Pohlmann, H.; Putrasahan, D. A.; Raddatz, T.; Ramme, L.; Redler, R.; Reick, C. H.; Riddick, T.; Sam, T.; Schneck, R.; Schnur, R.; Schupfner, M.; Storch, J.‐S.; Wachsmann, F.; Wieners, K.‐H.; Ziemen, F.; Stevens, B.; Marotzke, J.; Claussen, M. (2022). The ICON Earth System Model Version 1.0. doi:10.1029/2021ms002813

[3] DOI Foreman, M. G. G.; Cherniawsky, J. Y.; Ballantyne, V. A. (2009). Versatile Harmonic Tidal Analysis: Improvements and Applications. doi:10.1175/2008jtecho615.1

Is derived from

[1] Hertwig, Eileen; von Storch, Jin-Song; Haak, Helmuth; Singh, Vikram; Zhu, Xiuhua; Brüggemann, Nils. (2021). ICON-O spin-up simulations (for ICON-Tide). hdl:21.14106/46e641035ea657a2f90f7ebe6501d327643d1087

[2] Hertwig, Eileen; von Storch, Jin-Song; Lüschow, Veit; Singh, Vikram; Brüggemann, Nils; Haak, Helmuth. (2021). ICON-O simulations with tides (ICON-Tide). hdl:21.14106/a2c5432b7cb7f3a16d126dea36267d01d2abb3d6

Attached Datasets ( 4 )

Parent project(s)

Interaction between submesoscale eddies and internal waves

[Entry acronym: Tides_ICON-O] [Entry id: 3952976]