The 9C Seismic Network, 2007–2008
-
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restricted.
- Cite as:
- Schweitzer, Johannes; Schmidt-Aursch, Mechita; Krüger, Frank; Guterch, Aleksander (2024): BEAR ISLAND: DEPAS ocean-bottom seismometer operations in the Fram Strait in 2007-2008. GFZ Data Services. Other/Seismic Network. doi:10.14470/4P044426.
- Network code:
- 9C
- Type:
- Temporary
- Network dates†:
- 2007-01-01 to 2008-12-30
- Data time range‡:
- 2007–2008
- Terms of use:
- Creative Commons Attribution 4.0 International
Available since 2024-07-15
- Institution(s):
- Alfred-Wegener-Institut, NORSAR
- Creator(s):
- Schweitzer, Johannes; Schmidt-Aursch, Mechita; Krüger, Frank; Guterch, Aleksander (LEGACY)
- Description*:
- DEPAS ocean-bottom seismometer operations in the Fram Strait in 2007-2008 (BEAR ISLAND)
- Abstract:
- BEAR ISLAND (The Dynamic Continental Margin Between the Mid-Atlantic-Ridge System (Mohns Ridge, Knipovich Ridge) and the Bear Island Region) is an interdisciplinary project exploring the stress conditions and sources, and the dynamics and deformation characteristics of the continental margin between the Mid-Atlantic Ridge and Bear Island from its top sedimentary cover to its imprint in the upper mantle. In this region the margin includes an extremely thick sedimentary wedge and steep slopes, with at least one major paleo-fracture zone cutting through the wedge. Recent studies in this area indicate very low seismic velocities in the lithosphere and the stress field undergoes an extensional-compressional transition. It is therefore of particular interest to understand the structural architecture, the stress and the dynamics of the whole region because of its natural hazard exposure and the processes involved in the formation of the margin and the opening of the North Atlantic. To achieve this, deep seismic sounding data, as well as records from temporary broadband installations, supplementary to data from existing seismic stations in the region were collected. A key element of the project was the operation of a long-term network of broadband ocean-bottom seismometers (OBS). Additionally, two new broadband seismometers and a small temporary seismic array with 13 sensors were operated. Active seismic refraction/reflection experiments were conducted along two profiles crossing the region and recorded with additional short period OBSs and land stations. Twelve broadband ocean-bottom seismometers (OBS) from the German Instrument Pool of Amphibian Seismology (DEPAS) were deployed as part of this network with RV Horyzont II in September 2007. They were distributed on the Barents shelf, the slope and the deep sea near the Mid-Atlantic Ridge. Nine instruments could be recovered in August 2008 with RV Horyzont II. One instrument was fished before, one was destroyed during recovery and one got lost. Seven stations recorded data for the full deployment period; two stations have no skew value. The time correction for these stations was estimated by noise cross-correlations. Based on previous experiments, the accuracy of the positions is estimated to 500 m.
* Description is taken from seismic metadata, and may not match the preferred title for citations. - DataCite metadata:
- HTML | JSON | XML | INSPIRE
- Seismic metadata:
- fdsnws-station
- Network KML file:
Extended Network Information for network 9C [hide/show]
- Creator(s):
-
Schweitzer, Johannes
a;
Schmidt-Aursch, Mechita
b;
Krüger, Frank
c; Guterch, Alexander
d
a Norwegian Seismic Array, Lillestrøm, Norway, b Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany, c University of Potsdam, Germany, d Polish Academy of Sciences, Warsaw, Poland - Title:
- BEAR ISLAND: DEPAS ocean-bottom seismometer operations in the Fram Strait in 2007-2008
- Publisher:
- GFZ Data Services
- Resource Type:
- Other/Seismic Network
- Network DOI:
- doi:10.14470/4P044426
- Related Reference(s):
-
- Schweitzer, J.; Paulsen, B.; Antonovskaya, G.; Fedorov, A.; Konechnaya, Y.; Asming, V.; Pirli, M. (2022). EURARC – a bulletin for the European Arctic 1990 – 2013. ISC Seismological Dataset Repository. doi:10.31905/TYLLQY8T
- Crawford, Wayne (2021). obsinfo. Python standalone application for creating FDSN-standard (StationXML).
- Johannes Schweitzer; Berit Paulsen; Galina N. Antonovskaya; Andrey V. Fedorov; Yana V. Konechnaya; Vladimir E. Asming; Myrto Pirli (2021). A 24‐Yr‐Long Seismic Bulletin for the European Arctic. Seismological Research Letters 2021;; 92 (5): 2758–2767. doi:10.1785/0220210018
- Crawford, Wayne (2019). OBS data/metadata proposal.
- Myrto Pirli; Johannes Schweitzer (2018). BARENTS16: a 1-D velocity model for the western Barents Sea. J Seismol 22, 69–81. doi:10.1007/s10950-017-9692-y
- Myrto Pirli; Johannes Schweitzer; IPY Project Consortium (2018). Seismicity along the Mohns—Knipovich Ridge Bend and its correlation to ridge spreading rate. Journal of Geodynamics, Volume 118, July 2018, Pages 182-196. doi:10.1016/j.jog.2018.01.013
- 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
- Audun Libak; Rolf Mjelde; Henk Keers; Jan Inge Faleide; Yoshio Murai (2012). An integrated geophysical study of Vestbakken Volcanic Province, western Barents Sea continental margin, and adjacent oceanic crust. Mar Geophys Res 33, 185–207. doi:10.1007/s11001-012-9155-3
- Juerg Hauser; Kathleen M. Dyer; Michael E. Pasyanos; Hilmar Bungum; Jan I. Faleide; Stephen A. Clark; Johannes Schweitzer (2011). A probabilistic seismic model for the European Arctic. Journal of Geophysical Research: Solid Earth: Volume 116, Issue B1. doi:10.1029/2010JB007889
- Myrto Pirli; Johannes Schweitzer; IPY Project Consortium (2011). The International Polar Year (IPY) broadband ocean-bottom seismograph deployment: observations, limitations and integration with the IPY land network. NORSAR Scientific Report 2-2011, 51–64. doi:10.21348/p.2011.0001
- Wojciech Czuba; Marek Grad; Rolf Mjelde; Aleksander Guterch; Audun Libak; Frank Krüger; Yoshio Murai; Johannes Schweitzer; IPY Project Group (2011). Continent—ocean-transition across a trans-tensional margin segment: off Bear Island, Barents Sea. Geophysical Journal International, Volume 184, Issue 2, February 2011, Pages 541–554. doi:10.1111/j.1365-246X.2010.04873.x
- Johannes Schweitzer; IPY Project Consortium (2008). The International Polar Year 2007-2008 Project “The Dynamic Continental Margin between the Mid-Atlantic-Ridge System (Mohn’s Ridge, Knipovich Ridge) and the Bear Island Region”. NORSAR Scientific Report 1–2008, 53-63. doi:10.21348/p.2008.0001
- Place(s):
- Fram Strait
- Subject(s)a:
- GCMD keyword(s):
- Funding Reference(s):
- The Research Council of Norway (176069)
Station List for Network Code 9C
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Station description
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Database last updated at 2024 Nov 20 15:00:03
