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false4DOIDB.GFZ 10.5880/GFZ.4.2.2023.005 Blanke, Aglaja Aglaja Blanke 0000-0001-5252-965X GFZ German Research Centre for Geosciences, Potsdam, Germany Bohnhoff, Marco Marco Bohnhoff 0000-0001-7383-635X GFZ German Research Centre for Geosciences, Potsdam, Germany Freie University Berlin, Berlin, Germany GFZ Data Services 2023 noise evaluation volcano-seismology borehole broadband seismometers Accelerometer Geophone seismic dataset Etna data resolution analysis > noise analysis EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY EARTH SCIENCE SERVICES > DATA MANAGEMENT/DATA HANDLING > DATA DELIVERY evaluation > comparison Blanke, Aglaja Aglaja Blanke 0000-0001-5252-965X GFZ German Research Centre for Geosciences, Potsdam, Germany Blanke, Aglaja Aglaja Blanke 0000-0001-5252-965X GFZ German Research Centre for Geosciences, Potsdam, Germany Bohnhoff, Marco Marco Bohnhoff 0000-0001-7383-635X GFZ German Research Centre for Geosciences, Potsdam, Germany Freie University Berlin, Berlin, Germany Blanke, Aglaja GFZ German Research Centre for Geosciences, Potsdam, Germany 2023 2021-12-01/2024-04-30 2021-11-29/2024-04-30 2021-12-01/2022-07-04 2021-11-29/2022-01-13 Dataset DOI of paper when available 10.1016/j.jvolgeores.2012.08.013 10.13127/sd/x0fxnh7qfy 10.3133/ofr93322 10.1126/sciadv.aat9700 10.3389/feart.2022.810790 CC BY 4.0 In October 2021, GFZ installed together with INGV Catania, Iraci and ASIR Ltd (Advances Seismic Instrumentation & Research) the very first seismic borehole broadband seismometers at two selected sites at Mt. Etna, Sicily (see Fig. 1). The installation was completed under the EU-funded project ‘SiC nano for PicoGeo’ (http://www.picogeo.eu/). Site one is located next to the Astrophysical Observatory at Serra La Nave (SLN) and site two is located in the city of Mascalucia (MAS). At each site one borehole broadband seismometer was permanently installed (cemented) at approximately 70 m depth. In approx. 1-2m distance, a second ground-level borehole 4.5 Hz Geophone was temporarily installed (sanded) at 1 m depth until July 2022 (see Fig. 2). The ground-level geophones served as a local surface reference sensor to better evaluate the increase of signal quality from surface to depth. Test data were evaluated between October 2021 and July 2022. Sensor settings were adjusted during this time period to obtain the best possible data resolution at both test sites. This data publication compiles a segment of waveform recordings utilized for the assessment of data quality from the two installed broadband borehole seismometers, along with noise plots (Fig. 3-5) illustrating the enhancements in the data quality of frequency ranges compared to surface sensors at Mt. Etna.
Serra La Nave (SLN) station (1736 m elevation) Mascalucia (MAS) station (456 m elevation) Serra La Nave (SLN) station (1736 m elevation) Mascalucia (MAS) station (456 m elevation) Horizon 2020 http://dx.doi.org/10.13039/501100007601 863220