edu.ucar.opensky::articles:26647 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:28:19.647939 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d70r9tgb https://doi.org/10.17882/91774 https Related Dataset #1 Mixed layer depth climatology computed with a density threshold criterion of 0.03kg/m3 from 10 m depth value https://doi.org/10.22033/ESGF/CMIP6.13230 https Related Dataset #2 CMCC CMCC-CM2-SR5 model output prepared for CMIP6 OMIP omip1 https://doi.org/10.22033/ESGF/CMIP6.13283 https Related Dataset #3 CAS FGOALS-f3-H model output prepared for CMIP6 OMIP omip2 https://doi.org/10.22033/ESGF/CMIP6.14689 https Related Dataset #4 CSIRO-COSIMA ACCESS-OM2 model output prepared for CMIP6 OMIP omip2 https://doi.org/10.22033/ESGF/CMIP6.3413 https Related Dataset #5 CAS FGOALS-f3-L model output prepared for CMIP6 OMIP omip1 https://doi.org/10.22033/ESGF/CMIP6.7678 https Related Dataset #6 NCAR CESM2 model output prepared for CMIP6 OMIP omip1 https://doi.org/10.25914/608097cb3433f https Related Dataset #7 ACCESS-OM2 0.1 degree global model output (Interannual forcing simulation) https://doi.org/10.5281/zenodo.7656425 https Related Dataset #8 The Mixed Layer Depth in the Ocean Model Intercomparison Project (OMIP): Impact of Resolving Mesoscale Eddies: supporting data The mixed-layer depth in the Ocean Model Intercomparison Project (OMIP): Impact of resolving mesoscale eddies 2023-07-12T00:00:00Z publication https://n2t.org/ark:/85065/d70r9tgb https://doi.org/10.5194/gmd-16-3849-2023 Treguier, A. M. author de Boyer Montégut, C. author Bozec, A. author Chassignet, E. P. author Fox-Kemper, B. author McC. Hogg, A. author Iovino, D. author Kiss, A. E. author Le Sommer, J. author Li, Y. author Lin, P. author Lique, C. author Liu, H. author Serazin, G. author Sidorenko, D. author Wang, Q. author Xu, X. author Yeager, Stephen author UCAR/NCAR - Library publisher The ocean mixed layer is the interface between the ocean interior and the atmosphere or sea ice and plays a key role in climate variability. It is thus critical that numerical models used in climate studies are capable of a good representation of the mixed layer, especially its depth. Here we evaluate the mixed-layer depth (MLD) in six pairs of non eddying (1 degrees grid spacing) and eddy-rich (up to 1/16 degrees) models from the Ocean Model Intercomparison Project (OMIP), forced by a common atmospheric state. For model evaluation, we use an updated MLD dataset computed from observations using the OMIP protocol (a constant density threshold). In winter, low-resolution models exhibit large biases in the deep-water formation regions. These biases are reduced in eddy-rich models but not uniformly across models and regions. The improvement is most noticeable in the mode water formation regions of the Northern Hemisphere. Results in the Southern Ocean are more contrasted, with biases of either sign remaining at high resolution. In eddy-rich models, mesoscale eddies control the spatial variability in MLD in winter. Contrary to a hypothesis that the deepening of the mixed layer in anticyclones would make the MLD larger globally, eddy-rich models tend to have a shallower mixed layer at most latitudes than coarser models do. In addition, our study highlights the sensitivity of the MLD computation to the choice of a reference level and the spatio-temporal sampling, which motivates new recommendations for MLD computation in future model intercomparison projects. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation