https://orcid.org/0000-0001-8614-4221#178 ETIOPE Giuseppe [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] ETIOPE Giuseppe [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] IATROU Margarita [University of Patras, Greece] IATROU Margarita [University of Patras, Greece] https://orcid.org/0000-0001-9400-9310#3102 Science et technologie Scienza e tecnologia Wissenschaft und Technologie Science and technology Ciencia y tecnología INGV INGV ingv_608 https://orcid.org/0000-0002-6861-2789#3097 GERAGA Maria [University of Patras, Greece] GERAGA Maria [University of Patras, Greece] https://orcid.org/0000-0003-3732-1900#3141 PAPATHEODOROU George [University of Patras, Greece] PAPATHEODOROU George [University of Patras, Greece] Physical oceanography and methane concentrations measured with the MEDUSA system on transect Sogono_trans4, Amvrakikos Gulf, Western Greece 2021-02-12T00:00:00 MULTIPOLYGON (((20.8320 38.9889, 20.8327 38.9889, 20.8327 38.9836, 20.8320 38.9836, 20.8320 38.9889))) {"type": "MultiPolygon","coordinates": [[[ [20.832,38.9889], [20.8327,38.9889], [20.8327,38.9836], [20.832,38.9836], [20.832,38.9889] ]]]} N/A PANGAEA - Data Publisher for Earth & Environmental Science 10.1594/pangaea.762970 PREVENIOS Michalis [University of Patras, Greece] PREVENIOS Michalis [University of Patras, Greece] https://orcid.org/0000-0001-9493-8777#3152 2011-01-01T00:00:00 MARINARO Giuditta [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] https://orcid.org/0000-0002-6779-279X#193 MARINARO Giuditta [Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy] PANGAEA - Data Publisher for Earth & Environmental Science ingv http://www.ingv.it/it/ FAKIRIS Elias [University of Patras, Greece] https://orcid.org/0000-0002-3290-5467#3093 FAKIRIS Elias [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 survey monitoring T, S, P, O2, and CH4 concentrations acquired by the MEDUSA system CHRISTODOULOU Dimitris [University of Patras, Greece] https://orcid.org/0000-0002-3012-6865#3083 CHRISTODOULOU Dimitris [University of Patras, Greece] ingv Istituto Nazionale di Geofisica e Vulcanologia KORDELLA Stavroula [University of Patras, Greece] KORDELLA Stavroula [University of Patras, Greece] https://orcid.org/0000-0001-8496-9748#3113 ambiente 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]