seanoe:91020 Sérazin Guillaume Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France 2022-11-30 ISO 19115:2003/19139 1.0 Monthly climatology of the upper ocean pycnocline 2022 2022-11-30 Sérazin Guillaume, Tréguier Anne Marie, de Boyer Montégut Clement (2022). Monthly climatology of the upper ocean pycnocline. SEANOE. https://doi.org/10.17882/91020 In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication : Guillaume Sérazin, Anne Marie Tréguier, Clément de Boyer Montégut (2022). A seasonal climatology of the upper ocean pycnocline. Frontiers in Marine Science The upper ocean pycnocline (UOP) monthly climatology is based on the ISAS20 ARGO dataset containing Argo and Deep-Argo temperature and salinity profiles on the period 2002-2020. Regardless of the season, the UOP is defined as the shallowest significant stratification peak captured by the method described in Sérazin et al. (2022), whose detection threshold is proportional to the standard deviation of the stratification profile. The three main characteristics of the UOP are provided -- intensity, depth and thickness -- along with hydrographic variables at the upper and lower edges of the pycnocline, the Turner angle and density ratio at the depth of the UOP. A stratification index (SI) that evaluates the amount of buoyancy required to destratify the upper ocean down to a certain depth, is also included. When evaluated at the bottom of the UOP, this gives the upper ocean stratification index (UOSI) as discussed in Sérazin et al. (2022). Three mixed layer depth variables are also included in this dataset, including the one using the classic density threshold of 0.03 kg.m-3, along with the minimum of these MLD variables. Several statistics of the UOP characteristics and the associated quantities are available in 2°×2° bins for each month of the year, whose results were smoothed using a diffusive gaussian filter with a 500 km scale. UOP characteristics are also available for each profile, with all the profiles sorted in one file per month. Sérazin Guillaume Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France Tréguier Anne Marie Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France DE BOYER MONTÉGUT Clement Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France SEANOE https://www.seanoe.org/data/00798/91020/illustration.gif oceanography mixed layer ocean stratification Environment Density Salinity Sea temperature ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Environment SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 IR-ARGO Research Infrastructure 2024-07-26 geonetwork.thesaurus.local.theme.IR SNO-ARGO France National Services Observation 2024-10-04 geonetwork.thesaurus.local.theme.SNO /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY (Creative Commons - Attribution) A seasonal climatology of the upper ocean pycnocline 2023 Frontiers Media SA Sérazin Guillaume Treguier Anne-Marie de Boyer Montégut Clement 10.3389/fmars.2023.1120112 Argo float data and metadata from Global Data Assembly Centre (Argo GDAC) 2025 SEANOE Argo 10.17882/42182 ISAS temperature, salinity, dissolved oxygen gridded fields 2023 SEANOE Kolodziejczyk Nicolas Prigent-Mazella Annaig Gaillard Fabienne 10.17882/52367 oceans 180.0 -180.0 -80.0 78.0 NC, NETCDF https://www.seanoe.org/data/00798/91020/data/97791.nc WWW:DOWNLOAD-1.0-link--download Processed data Monthly climatology of upper ocean pycnocline on a 2°x2° grid - 276 MB https://www.seanoe.org/data/00798/91020/data/97799.tar.gz WWW:DOWNLOAD-1.0-link--download Processed data Upper ocean pycnocline estimated on ISAS profiles - 254 MB https://doi.org/10.17882/91020 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00798/91020/ rel-canonical Seanoe