Project BRAVOSEIS: DEPAS ocean-bottom seismometer operations in the Bransfield Strait in 2019-2020

DOI

BRAVOSEIS (Bransfield Volcano Seismology) is an interdisciplinary project exploring volcanism in the Bransfield back-arc basin, Antarctica. Partners from Spain (amongst others UGR, project leader), Germany (AWI, GFZ) and the US (CUNY, UW, WHOI) performed various geophysical onshore and offshore measurements in the Antarctis seasons 2017-2018, 2018-2019 and 2019-2020. A key element of the project was the operation of a large long-term amphibious network of broadband seismometer in the Bransfield Strait, on the adjoining South Shetland Islands, and on the Antarctic Peninsula. Nine broadband ocean-bottom seismometer (OBS) from the German Instrument Pool of Amphibian Seismology (DEPAS) were deployed as part of this network with RV Sarmiento de Gamboa in January 2019 (cruise SDG076). They were distributed along the entire basin, one station supplemented a dense array of short-period OBS around the Orca seamount. Eight instruments could be recovered in February 2020 with RV Hespérides (cruise HE0188), one OBS is still missing. All stations recorded data for the full deployment period. Unfortunately, the clock drift of all stations turned out to be non-linear, a skew measurement was possible for four stations only. The clock drift was corrected by means of noise cross-correlations. Based on previous experiments, the accuracy of the positions is estimated to 500 m. Waveform data is available from the GEOFON data centre, under network code ZX.

Identifier
DOI https://doi.org/10.14470/MK678861
Related Identifier HasMetadata https://geofon.gfz-potsdam.de/waveform/archive/response/ZX/2019_2020
Related Identifier IsDocumentedBy https://doi.org/10.17815/jlsrf-3-165
Related Identifier IsDocumentedBy https://doi.org/10.20351/29SG20181230
Related Identifier IsDocumentedBy https://doi.org/10.20351/29HE20200207
Related Identifier IsCompiledBy https://github.com/KUM-Kiel
Related Identifier IsDocumentedBy https://doi.org/10.1016/j.jsames.2020.102834
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.934130
Related Identifier IsSupplementedBy https://doi.org/10.14470/0Z7563857972
Related Identifier IsCitedBy https://doi.org/10.1029/2021GL095032
Related Identifier IsCitedBy https://doi.org/10.1029/2023GL103813
Related Identifier IsCompiledBy https://obsinfo.readthedocs.io/en/master/
Related Identifier References https://www.ipgp.fr/~crawford/Documents/OBS_data_standards.pdf
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:8006
Provenance
Creator Almendros, Javier ORCID logo; Schmidt-Aursch, Mechita ORCID logo; Geissler, Wolfram (ORCID: 0000-0001-6807-555X)
Publisher GFZ Data Services
Contributor Deutsches GeoForschungsZentrum GFZ; GEOFON Data Centre; geofon(at)gfz-potsdam.de; Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; University of Granada, Spain
Publication Year 2024
Funding Reference Spanish Ministry of Science https://doi.org/10.13039/501100004837 Crossref Funder ID CTM2016-77315-R
Rights embargoed access; Creative Commons Attribution 4.0 International; https://vocabularies.coar-repositories.org/access_rights/c_f1cf/; https://creativecommons.org/licenses/by/4.0/legalcode
OpenAccess true
Contact geofon(at)gfz-potsdam.de
Representation
Language English
Resource Type Seismic Network; Dataset
Format .mseed; XML
Size 291GB
Discipline Acoustics; Engineering Sciences; Mechanical and industrial Engineering; Mechanics and Constructive Mechanical Engineering
Spatial Coverage (-60.000W, -63.000S, -57.000E, -62.000N); Antarctica
Temporal Coverage Begin 2019-01-11T00:00:00Z
Temporal Coverage End 2020-02-11T00:00:00Z