Istituto Nazionale di Geofisica e Vulcanologia ingv 10.1594/pangaea.762950 Ciencia y tecnología Scienza e tecnologia Science et technologie Wissenschaft und Technologie Science and technology https://orcid.org/0000-0001-8496-9748#3113 KORDELLA Stavroula [University of Patras, Greece] KORDELLA Stavroula [University of Patras, Greece] MARINARO Giuditta [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] MARINARO Giuditta [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] https://orcid.org/0000-0002-6779-279X#193 GERAGA Maria [University of Patras, Greece] GERAGA Maria [University of Patras, Greece] https://orcid.org/0000-0002-6861-2789#3097 2011-01-01T00:00:00 ETIOPE Giuseppe [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] ETIOPE Giuseppe [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] https://orcid.org/0000-0001-8614-4221#178 PREVENIOS Michalis [University of Patras, Greece] https://orcid.org/0000-0001-9493-8777#3152 PREVENIOS Michalis [University of Patras, Greece] These data have been collected in the framework of the In situ monitoring of oxygen depletion in hypoxic ecosystems of coastal and open seas and land-locked water bodies (HYPOX) CE project. They consist of physical-chemical oceanographic fixed monitoring T, S, P, O2, CH4 and current velocity acquired by the GMM seafloor observatory IATROU Margarita [University of Patras, Greece] IATROU Margarita [University of Patras, Greece] https://orcid.org/0000-0001-9400-9310#3102 {"type": "MultiPoint","coordinates": [[21.3198,37.6449]]} MULTIPOINT ((21.3198 37.6449)) https://orcid.org/0000-0002-3290-5467#3093 FAKIRIS Elias [University of Patras, Greece] FAKIRIS Elias [University of Patras, Greece] ingv_599 INGV INGV N/A PANGAEA - Data Publisher for Earth & Environmental Science https://orcid.org/0000-0002-5160-941X#182 LO BUE Nadia [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] LO BUE Nadia [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] 2021-02-12T00:00:00 ambiente http://www.ingv.it/it/ PANGAEA - Data Publisher for Earth & Environmental Science ingv PAPATHEODOROU George [University of Patras, Greece] PAPATHEODOROU George [University of Patras, Greece] https://orcid.org/0000-0003-3732-1900#3141 CHRISTODOULOU Dimitris [University of Patras, Greece] https://orcid.org/0000-0002-3012-6865#3083 CHRISTODOULOU Dimitris [University of Patras, Greece] Physical oceanography, methane, and hydrogen sulphide concentrations measured with the GMM observatory in Katakolo Bay, Western Greece