The 2E Seismic Network, 2012–2013

 
Cite as:
Schlindwein, Vera; Schmidt-Aursch, Mechita (2022): Project SWEAP: DEPAS ocean-bottom seismometer operations at the Southwest Indian Ridge in 2012-2013. GFZ Data Services. Other/Seismic Network. doi:10.14470/7R7567193925.
Network code:
2E
Type:
Temporary
Time Range:
2012–2013
Terms of use:
Creative Commons Attribution 4.0 International CC BY 4.0
Archived at:
GFZ
Institution(s):
Alfred-Wegener-Institut, Bremerhaven
Creator(s):
Schlindwein, Vera; Schmidt-Aursch, Mechita
Description*:
Southwest Indian Ridge Earthquakes and Hydrothermal Plumes (SWEAP)
Abstract:
Project SWEAP (Southwest Indian Ridge Earthquakes and Plumes), a collaborative effort led by the Alfred-Wegener-Institute, installed a network of 10 broad-band ocean bottom seismometers (OBS) along the ultraslow-spreading Oblique Supersegment of the Southwest Indian Ridge. The presented data set covers the continuous records of 8 stations of the network provided by the DEPAS instrument pool. One station of the original network could not be recovered, another one did not return data. The instruments were spaced at roughly 15 km intervals in a triangular shape network to either side of the rift axis covering about 60 km along axis between 13°E and 13.8°E and 60 km across axis between 52°S and 52.6°S. The determination of the OBS positions is described by Schmid et al. (2016). The network design was optimized for detecting and locating deep seismicity in the area. The rift valley was filled with soft silica ooze, producing considerable delay of S-phases at selected stations. Instrument deployment started during RV Polarstern cruise ANT-XXIX/2 on December 05 2012. Instrument recovery was completed during RV Polarstern cruise ANT-XXIX/8 on November 26 2013. 5 Refraction seismic lines were acquired by RV Polarstern cruise ANT-XXIX/8 from November 17 to 19 in 2013. All OBS could be synchronized with the GPS clock upon recovery such that skew values describing the clock drift are available for all stations. The non-linear clock drift of station SWE05 was determined by means of noise cross-correlations and applied to the data set. All other stations show a linear drift, which was corrected.

* 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
Funder:
DFG
Network KML file:
To retrieve waveform data and metadata (including instrument responses) for this and other seismic networks, see here.

Extended Network Information for network 2E [hide/show]

Creator(s):
orcid:0000-0001-5570-2753 Schlindwein, Vera a; orcid:0000-0002-2393-4514 Schmidt-Aursch, Mechita a
a Alfred Wegener Institute (AWI), Bremerhaven, Germany
Title:
Project SWEAP: DEPAS ocean-bottom seismometer operations at the Southwest Indian Ridge in 2012-2013
Publisher:
GFZ Data Services
Resource Type:
Other/Seismic Network
Network DOI:
doi:10.14470/7R7567193925
Related Reference(s):
  1. Schlindwein, Vera; Schmidt-Aursch, Mechita (2021). Project SWEAP: DEPAS ocean-bottom seismometer operations at the Southwest Indian Ridge in 2012-2013. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA. doi:10.1594/PANGAEA.932358
  2. 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
  3. Schlindwein, Vera; Schmid, Florian (2016). Mid-ocean-ridge seismicity reveals extreme types of ocean lithosphere. Nature 535, 276279. doi:10.1038/nature18277
  4. Schmid, Florian; Schlindwein, Vera (2016). Microearthquake activity, lithospheric structure, and deformation modes at an amagmatic ultraslow spreading Southwest Indian Ridge segment. AGU, Volume 17, Issue 7, Pages 2905-2921. doi:10.1002/2016GC006271
  5. Schlindwein, V. (2014). The expedition of the research vessel "Polarstern" to the Antarctic in 2013 (ANT-XXIX/8) / Ed. by Vera Schlindwein with contributions of the participants. Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 672 , 111 p. doi:10.2312/BzPM_0672_2014
  6. Boebel, O. (2013). The expedition of the research vessel "Polarstern" to the Antarctic in 2012/2013 (ANT-XXIX/2). Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 671 , 99 p. doi:10.2312/BzPM_0671_2013
[+] To provide additional references, PIs should contact GEOFON staff.

Station List for Network Code 2E

Code
Station description
Begin
End
Loc
Channels
Flags
SWE02
2012-12-06
2013-11-26
--
HH1 HH2 HHZ
SWE03
2012-12-05
2013-11-20
--
HH1 HH2 HHZ
SWE05
2012-12-06
2013-11-21
--
HH1 HH2 HHZ
SWE06
2012-12-05
2013-11-21
--
HH1 HH2 HHZ
SWE07
2012-12-05
2013-11-21
--
HH1 HH2 HHZ
SWE08
2012-12-05
2013-11-21
--
HH1 HH2 HHZ
SWE09
2012-12-05
2013-11-20
--
HH1 HH2 HHZ
SWE10
2012-12-05
2013-11-20
--
HH1 HH2 HHZ

Database last updated at 2022 Nov 03 12:12:38