10.5880/fidgeo.2019.021 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2022-09-09 urn:ogc:def:crs:EPSG:4326 Dataset for the influence of water content and temperature on electrification in rapid decompression experiments 2022-09-09 revision 2019-07-22 creation doi:10.5880/fidgeo.2019.021 Stern, Sönke Ludwig-Maximilians-University Munich, Munich, Germany author Cimarelli, Corrado Ludwig-Maximilians-University Munich, Munich, Germany author Gaudin, Damien Ludwig-Maximilians-University Munich, Munich, Germany author Scheu, Bettina Ludwig-Maximilians-University Munich, Munich, Germany author Dingwell, Donald B. Ludwig-Maximilians-University Munich, Munich, Germany author Fragmentation Lab (Ludwig-Maximilians-University Munich, Germany) Ludwig-Maximilians-University Munich, Munich, Germany originator GFZ Data Services publisher This data publication provides data from 42 experiments from 2018 and 2019 in the Fragmentation Lab at the Ludwig-Maximilians University Munich (Germany). The experiments were taken out to analyse the influence of the water content and the initial temperature of the pre-experimental sample on the produced electrification in rapid decompression, shock-tube experiments. All samples used in this study are 90-300 μm loose ash samples from the lower Laacher See unit. To carry out this study, we have built up on previous studies by Cimarelli et al. (2014) and Gaudin & Cimarelli (2019b, dataset to be found in Gaudin & Cimarelli, 2019a). A sample of loose ash gets placed in an autoclave. In our study, we have added water in some experiments. Also, a furnace was often used to heat the sample to up to 320 °C. After both water addition and heating, the autoclave gets pressurized using argon gas. Once a target pressure of 9 MPa is reached, the experiment gets triggered by rupturing metal diaphragms, which rapid decompresses the sample and ejects it into a collector tank. This collector tank is made out of steel and electrically insulated from its surrounding, thus working as a Faraday cage (FC), which is able to detect the net charge within at any point during the experiment. We detect discharges on that net charge up to 10 ms after the ejection of the particles. This dataset contains: - an overview .xlsx file (ExperimentOverview) containing key information for the 42 experiments used for analysis in this study - raw .csv files for all experiments - .pdf files showing the key elements of the analysed experiments, incl. data from Faraday cage and pressure sensors For more information please refer to the data description and the associated publication (Stern et al., 2019). Complete Stern, Sönke Ludwig-Maximilians-University Munich, Munich, Germany soenke.stern@gmail.com pointOfContact Cimarelli, Corrado cimarelli@min.uni-muenchen.de pointOfContact ash electric charge Faraday cage water temperature shock-tube jet rapid decompression EPOS rock and melt physical properties multi-scale laboratories ash_and_lapilli phonolilte EPOS WP16 Rock Physics Material publication EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC ELECTRICITY > LIGHTNING EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > LIGHTNING EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > VOLCANIC ERUPTIONS EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > ASH/DUST DISPERSION EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > VOLCANIC EXPLOSIVITY EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > GEOLOGICAL ADVISORIES > VOLCANIC ACTIVITY EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > WEATHER/CLIMATE ADVISORIES > DUST/ASH ADVISORIES NASA/GCMD Earth Science Keywords publication CC BY 4.0 CC BY 4.0 10.5880/fidgeo.2018.025 DOI Cites 10.1130/G34802.1 DOI Cites 10.1016/j.epsl.2019.02.024 DOI Cites 10.1029/2019GL084678 DOI IsSupplementTo eng geoscientificInformation http://doi.org/10.5880/fidgeo.2019.021 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information