seanoe:77207 Cornec Marin Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France 2023-09-25 ISO 19115:2003/19139 1.0 Deep Chlorophyll Maximum global database from BioGeoChemical-Argo floats 2020-11-25 2023-09-25 Cornec Marin, Claustre Hervé, Mignot Alexandre, Guidi Lionel, Lacour Léo, Poteau Antoine, D'Ortenzio Fabrizio, Gentili Bernard, Schmechtig Catherine (2020). Deep Chlorophyll Maximum global database from BioGeoChemical-Argo floats. SEANOE. https://doi.org/10.17882/77207 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 : Cornec M., Claustre H., Mignot A., Guidi L., Lacour L., Poteau A., D'Ortenzio F., Gentili B., Schmechtig C. (2021). Deep Chlorophyll Maxima in the global ocean: occurrences, drivers and characteristics. Global Biogeochemical Cycles, 35(4), e2020GB006759 (30p.). https://doi.org/10.1029/2020GB006759 The dataset dcm_dtb.txt contains bio-optical measurements and environmental parameters associated with  Deep Chlorophyll Maxima (DCM) acquired by BGC-Argo profiling floats. For each BGC-Argo profile the data files includes the World Meteorological Organization (WMO) and profile numbers, the Data Assembly Center (DAC), the geographical position (LON and LAT), the date of the profile in Julian Day (JULD) and in YYYY-MM-DD format; the region of the profile (REGION, acronyms detailed in the region.txt file), the DCM zonal attribution (ZONE, acronyms detailed in the zone.txt file), the vertical resolution of measurements of the concentration of the chlorophyll a [Chla] and of the backscattering coefficient (bbp) within the 250 first meters, the Mixed Layer Depth (MLD, m), the qualification of the vertical profile (DCM_TYPE) as Deep Biomass Maximum (3), Deep photoAcclimation Maximum (2), or presenting no DCM (1); the depth of the DCM (DCM_DEPTH); the chlorophyll a concentration (CHLA_DCM, mg chla m-3 ) the backscattering coefficient (BBP_DCM, m-1), and the Brunt-Vaisala frequency (N2_DCM) at the DCM depth; the nitracline depth (NCLINE_DEPTH, m) and steepness (NCLINE_STEEP, µmol NO3 m-3 m-1), the mean nitrate concentration within the Mixed Layer (NO3_MEAN_MLD, µmol NO3 m-3), the mean daily Photosynthetically Available Radiation in the Mixed Layer (MEAN_IPAR_MLD, E m -1 d -1), the daily Photosynthetically Available Radiation at the nitracline depth (IPAR_NCLINE, E m-2 d-1);  and the [Chla] measured by satellite (CHLA_SAT, mg chla m-3). The dataset shape_NASTG_ASEW.txt contains the seasonal median, the first and third quartiles of the [Chla] and of the bbp profiles for the North Atlantic Subtropical Gyre and Atlantic SubEquatorial Waters regions. The dataset climato_NASTG_ASEW.txt contains the monthly mean and standard deviations of the DCM depth (DCM_depth), the isolume depth of daily Photosynthetically Available Radiation of 20 E m-2 d-1 (iPAR_20), the nitracline depth, and the Mixed Layer Depth (MLD) for the profiles within the North Atlantic Subtropical Gyre and Atlantic SubEquatorial Waters regions.  The qualification and processing of the BGC-Argo profiles, as well as the DCM detection (DCM_TYPE) and the estimation of the environmental parameters, were applied as described from Cornec, M., Claustre, H., Mignot, A., Guidi, L., Lacour, L., Poteau, A., D’Ortenzio, F.,Gentili, B., Schmechtig, C., (to be updated.) Deep Chlorophyll Maxima in the global ocean: occurrences, drivers and characteristics. Global Biogeochemical Cycles, to be updated The [Chla] satellite variable was obtained by the match of each BGC-Argo profile with a L3S [Chla] product from the Ocean Colour-Climate Change Initiative v4.0 database merging observations from MERIS, MODIS, VIIRS and SeaWiFs, at a monthly and 4x4-km-pixel resolution, up to December 31, 2019 (ftp://oc-cci-data:ELaiWai8ae@oceancolour.org/occci-v4.2/). This study is a contribution to the following projects: remOcean (European Research Council, Grant agreement 246777); REFINE (European Research Council, Grant agreement 834177); SOCLIM (BNP Foundation); AtlantOS (European Union's Horizon 2020 research and innovation program, Grant 2014‐633211); NAOS (Agence Nationale de la Recherche, grant agreement J11R107-F); BGC-Argo-France (CNES-TOSCA). All BGC-Argo data are available at ftp://ftp.ifremer.fr/ifremer/argo/dac/. These data were collected and made freely available by the International Argo Program and the national programs that contribute to it. (https://argo.ucsd.edu, https://www.ocean-ops.org). The Argo Program is part of the Global Ocean Observing System. Haili Wang is acknowledged for giving access to data from three floats in the South China Sea. The authors wish to thank the Argo Data Management team (ADMT) and the BGC-Argo Data Management team (BGC ADMT). Authors declare no conflict of interest. Cornec Marin Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France Claustre Hervé Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France Mignot Alexandre Mercator Océan International, F-31520 Ramonville-Saint-Agne, France Guidi Lionel Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France Lacour Léo Takuvik Joint International Laboratory, Laval University (Canada) - CNRS (France), Département de biologie et Québec-Océan, Université Laval, Québec G1V 0A6, Canada Poteau Antoine Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France D'Ortenzio Fabrizio Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France Gentili Bernard Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France Schmechtig Catherine Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France SEANOE https://www.seanoe.org/data/00660/77207/illustration.gif Map of BGC Argo profiles used in the present database which describes DCM presence and characteristics Deep Chlorophyll Maximum BioGeoChemical-Argo floats Global Ocean Photoacclimation Chlorophyll a Backscattering Coefficient Nitrates Daily PAR Subsurface Chlorophyll Maximum Phytoplankton Biological oceanography Phytoplankton Pigments ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Biological oceanography 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) Subsurface phytoplankton responses to ocean eddies can run counter to satellite-based inference from surface properties in subtropical gyres 2023 Elsevier BV He Qingyou McGillicuddy Dennis J. Xing Xiaogang Cai Shuqun Zhan Weikang He Yinghui Xu Jiexin Zhan Haigang 10.1016/j.pocean.2023.103118 Deep Chlorophyll Maxima in the global ocean: occurrences, drivers and characteristics 2021 American Geophysical Union (AGU) CORNEC M. CLAUSTRE H. MIGNOT A. GUIDI L. LACOUR L. POTEAU A. D'ORTENZIO F. GENTILI B. SCHMECHTIG C. 10.1029/2020GB006759 oceans -180.0 180.0 -90.0 90.0 2010-05-30 2020-03-08 CSV https://www.seanoe.org/data/00660/77207/data/78647.txt WWW:DOWNLOAD-1.0-link--download Processed data DCM identification and related environmental characteristics from the BGC Argo database - 15 MB https://www.seanoe.org/data/00660/77207/data/78648.txt WWW:DOWNLOAD-1.0-link--download Processed data Climatologies of the DCM depth, nitracline, isolume of 20 E m-2 d-1, and MLD in the NASTG and ASEW regions - 5 KB https://www.seanoe.org/data/00660/77207/data/78649.txt WWW:DOWNLOAD-1.0-link--download Processed data Seasonal vertical distribution of the [Chla] and bbp in the NASTG and ASEW regions - 528 KB https://www.seanoe.org/data/00660/77207/data/78650.txt WWW:DOWNLOAD-1.0-link--download Processed data Description of the regional acronyms used in the dcm_dtb.txt file - 920 bytes https://www.seanoe.org/data/00660/77207/data/78651.txt WWW:DOWNLOAD-1.0-link--download Processed data Description of the zonal acronyms used in the dcm_dtb.txt file - 120 bytes https://doi.org/10.17882/77207 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00660/77207/ rel-canonical Seanoe The float sensors were the ECO Triplet (Three Channel Sensor; WET Labs, Inc., USA) measuring the chlorophyll-a fluorescence and the scattering of light at 700 nm and an angle of 124°).