seanoe:99960 HEUMANN Alexandre ALSEAMAR, Rousset, France Geo-Ocean UMR 6538 CNRS - Ifremer - UBO, Plouzané, France aheumann@alseamar-alcen.com 2024-12-06 ISO 19115:2003/19139 1.0 30 months dataset of glider physico-chemical data off Mayotte Island near the Fani Maore volcano 2024- - 2024-12-06 Heumann Alexandre, Margirier Félix, Rinnert Emmanuel, Lherminier Pascale, Scalabrin Carla, Geli Louis, Pasqueron De Fommervault Orens, Beguery Laurent (2024). 30 months dataset of glider physico-chemical data off Mayotte Island near the Fani Maore volcano. SEANOE. https://doi.org/10.17882/99960 In May 2018, an unprecedented long and intense seismic-volcanic crisis broke out off the island of Mayotte (Indian Ocean) and was associated with the birth of the Fani Maoré underwater volcano. Since then, an integrated observation network has been created (REVOSIMA), with the given objective of monitoring and better understanding underwater volcanic phenomena. Recently, an unmanned submarine glider (SeaExplorer) has been deployed to supplement the data obtained during oceanographic surveys (MAYOBS) which are carried out on an annual basis. This glider is operated by ALSEAMAR and performed a continuous monitoring of 30 months of the water column with the objective to acquire hydrological properties, water currents and dissolved gas concentrations. This monitoring already showed that it is feasible and valuable to measure autonomously, continuously and at a high spatio-temporal scale, physical (TEMP, SAL, water currents) and biogeochemical parameters (O2, CH4, PCO2, bubbles/droplets, vertical speeds) over several months from a SeaExplorer glider. In particular, innovating sensing capabilities (e.g., MINI-CO2, ADCP) have shown a great potential in the context of the Mayotte seismic volcano crisis, despite technical challenges (complex algorithms, sensor capabilities, etc.). This dataset provides these physical and biogeochemical parameters from September 17, 2021 to April 02, 2024 and the quality flags associated.    HEUMANN Alexandre ALSEAMAR, Rousset, France Geo-Ocean UMR 6538 CNRS - Ifremer - UBO, Plouzané, France aheumann@alseamar-alcen.com MARGIRIER Félix ALSEAMAR, Rousset, France RINNERT Emmanuel Geo-Ocean UMR 6538 CNRS - Ifremer - UBO, Plouzané, France LHERMINIER Pascale LOPS UMR 6523 CNRS - Ifremer - UBO - IRD, Plouzané, France SCALABRIN Carla Geo-Ocean UMR 6538 CNRS - Ifremer - UBO, Plouzané, France GELI Louis Geo-Ocean UMR 6538 CNRS - Ifremer - UBO, Plouzané, France PASQUERON DE FOMMERVAULT Orens OceanOPS, World Meteorological Organization / Intergovernmental Oceanographic Commission (IOC) of UNESCO, Monaco BEGUERY Laurent ALSEAMAR, Rousset, France SEANOE https://www.seanoe.org/data/00888/99960/illustration.gif Glider Underwater volcano CTD Dissolved oxygen Methane Carbon dioxide Mayotte Chemical oceanography Physical oceanography CO2 Carbonate system Currents Dissolved oxygen Salinity Sea temperature ODATIS aggregation parameters and Essential Variable names 2025-07-29 geonetwork.thesaurus.external.theme.NVS.OD1 Chemical oceanography Physical oceanography SeaDataNet Parameter Disciplines 2025-07-29 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2025-12-09 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY (Creative Commons - Attribution) A 30-month data set of glider physico-chemical data off Mayotte Island near the Fani Maoré volcano 2025 Copernicus GmbH Heumann Alexandre Margirier Félix Rinnert Emmanuel Lherminier Pascale Scalabrin Carla Geli Louis Pasqueron De Fommervault Orens Beguery Laurent 10.5194/essd-17-4535-2025 30 months dataset of glider physico-chemical data off Mayotte Island near the Fani Maoré volcano 2024 Copernicus GmbH Heumann Alexandre Margirier Félix Rinnert Emmanuel Lherminier Pascale Scalabrin Carla Geli Louis Pasqueron de Fommervault Orens Beguery Laurent 10.5194/essd-2024-377 oceans 44.951093 45.718762 -13.2134 -12.562798 2021-09-17 2024-04-02 PDF CSV https://www.seanoe.org/data/00888/99960/data/111986.pdf WWW:DOWNLOAD-1.0-link--download Metadata file - 562 KB https://www.seanoe.org/data/00888/99960/data/112399.zip WWW:DOWNLOAD-1.0-link--download Quality controlled data acoustic backscatter data derived from ADCP - 241 MB https://www.seanoe.org/data/00888/99960/data/112400.zip WWW:DOWNLOAD-1.0-link--download Quality controlled data hydrological and dissolved gases data - 67 MB https://www.seanoe.org/data/00888/99960/data/112401.zip WWW:DOWNLOAD-1.0-link--download Quality controlled data honrizontal current data derived from ADCP - 10 MB https://www.seanoe.org/data/00888/99960/data/112402.zip WWW:DOWNLOAD-1.0-link--download Quality controlled data vertical current anomaly data derived from ADCP - 187 MB https://doi.org/10.17882/99960 DOI DOI of the product https://www.seanoe.org/data/00888/99960/ rel-canonical Seanoe Find sensors metadata in the Metadata docx file