1.0 2026-07-05T00:00:00 http://www.opendefinition.org/licenses/cc-by 2026-12-05T00:00:00 12-05-2026 1143 https://data.ingv.it/person/1143 ITA vulcani scienza https://data.ingv.it/person/scienza https://data.ingv.it/dataset/1208 A low-cost IoT-based accumulation chamber for measuring diffuse CO2 fluxes: calibration and field validation at Nea Kameni volcano (Santorini) This dataset, provided as a three-sheet spreadsheet, details the laboratory calibration of an IoT accumulation chamber and the subsequent fieldwork. - Sheet 1 (Calibration_data) contains calibration data, including simulated fluxes, the measured rate of CO2 concentration change observed by the accumulation chamber, and the resulting recalculated measured fluxes. - Sheet 2 (Calibration_raw_data) contains the raw CO2 concentration time-series data for each individual measurement trial conducted during the calibration process. - Sheet 3 (Nea_Kameni_data) contains diffuse flux data and geographic coordinates from fieldwork carried out at the Nea Kameni volcano in Santorini. 07-05-2026 {"type":"Polygon","coordinates":[[[25.39609322324395,36.404174397348854],[25.396082494407885,36.40481771035962],[25.39667258039116,36.40482202787861],[25.396629665046927,36.404174397348854],[25.39609322324395,36.404174397348854]]]} https://data.ingv.it/person/548 548 https://data.ingv.it/person/827 827 10.13127/santorini/iot-accumchamb.1 https://data.ingv.it/person/1001 1001 https://data.ingv.it customer service Istituto Nazionale di Geofisica e Vulcanologia (INGV) Istituto Nazionale di Geofisica e Vulcanologia (INGV) Portale dei dati aperti Open Data Portal]]> https://data.ingv.it