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Cite as

Almendros, Javier; Schmidt-Aursch, Mechita; Geissler, Wolfram (2024): Project BRAVOSEIS: DEPAS ocean-bottom seismometer operations in the Bransfield Strait in 2019-2020. GFZ Data Services. Dataset/Seismic Network. doi:10.14470/MK678861.

Identifier

10.14470/MK678861

FDSN network code

ZX

DataCite metadata

HTML | JSON | XML | INSPIRE | Local XML source file

Terms/rights

Creative Commons Attribution 4.0 International Available since 2025-01-01

Creator(s)

Almendros, Javier ^a; Schmidt-Aursch, Mechita ^b; Geissler, Wolfram ^b
a University of Granada, Spain, ^b Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany

Description

• (Abstract) 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.

Title

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

Publisher

GFZ Data Services

Publication Year

2024

Resource Type

Dataset / Seismic Network

Dates

1. Collected 2019-01-11/2020-02-11
2. Accepted 2024-10-17
3. Submitted 2024-10-21
4. Issued 2024-10-23
5. Created 2024-10-23
6. Available 2025-01-01

Place(s)

1. Antarctica

Contributor(s)

• Hosting institution: Deutsches GeoForschungsZentrum GFZ
• Data manager: GEOFON Data Centre
• Project members: Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; University of Granada, Spain

Subjects

• SeisData terms: DEPAS Geophysics Hydrophones MiniSEED OBS Passive seismic Seismometers Temporary Velocity
• GCMD keywords: Marine geophysics Earthquakes Geophysical stations/networks Seismometers Hydrophones

Contributing network(s)

1. [missed] 10.1594/PANGAEA.934130 doi:10.1594/PANGAEA.934130

Funding Reference(s)

1. Spanish Ministry of Science (CTM2016-77315-R)

Language

en

Sizes

1. 291GB

Reference(s)

1. J. A. Parera-Portell; F. D. L. Mancilla; J. Almendros; J. Morales; D. Stich (2023). Slab Tearing Underneath the Bransfield Strait, Antarctica. Geophysical Research Letters, Volume50, Issue13. doi:10.1029/2023GL103813 DOI
2. Crawford, Wayne (2021). obsinfo. Python standalone application for creating FDSN-standard (StationXML). WWW
3. Schmidt-Aursch, Mechita; Almendros, Javier; Geissler, Wolfram (2021). Project BRAVOSEIS: DEPAS ocean-bottom seismometer operations in the Bransfield Strait in 2019-2020. PANGAEA. doi:10.1594/PANGAEA.934130 DOI
4. Wei Li; Xiaohui Yuan; Benjamin Heit; Mechita C. Schmidt-Aursch; Javier Almendros; Wolfram H. Geissler; Yun Chen (2021). Back-Arc Extension of the Central Bransfield Basin Induced by RidgeTrench Collision: Implications From Ambient Noise Tomography and Stress Field Inversion. Geophysical Research Letters, Volume48, Issue21. doi:10.1029/2021GL095032 DOI
5. CSIC-UTM/ Marine Technology Unit (2020). Cruise Bravoseis 3. doi:10.20351/29HE20200207WWW DOI
6. Heit, B.; Yuan, X.; Almendros, J.; Abella, R.; Carmona, E.; Aguí, F.; Carrión, P. (2020). BRAVOSEIS Onshore Seismic Array. doi:10.14470/0Z7563857972 DOI
7. J. Almendros, et al. (2020). BRAVOSEIS: Geophysical investigation of rifting and volcanism in the Bransfield strait, Antarctica. Journal of South American Earth Sciences, Volume 104, 102834. doi:10.1016/j.jsames.2020.102834 DOI
8. Wayne Crawford (2019). OBS data/metadata proposal. PDF
9. CSIC-UTM/ Marine Technology Unit (2018). Cruise Bravoseis 2. doi:10.20351/29SG20181230WWW DOI
10. KUM Umwelt- und Meerestechnik Kiel GmbH (2017). Software for reading the RawData. WWW
11. Schmidt-Aursch, Mechita; Haberland, Christian (2017). DEPAS (Deutscher Geräte-Pool für amphibische Seismologie): German Instrument Pool for Amphibian Seismology. Journal of large-scale research facilities JLSRF. doi:10.17815/jlsrf-3-165 DOI

FDSN network code

ZX

Network dates

2019–2020

Data time range

2019–2020

Station Count

8

Seismic metadata

fdsnws-station FDSN StationXML SC3 XML

To retrieve waveform data and metadata (including instrument responses) for this and other seismic networks, see here. Network (data set) values are taken from DataCite XML with Metadata Properties version 4.4. Contact us if you are the PI and wish to make changes. Old-style network page for this network here.