Publication Date:
2024-04-20
Description:
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 Antarctic 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 Sheltland Islands, and on the Antarctic Peninsula.
Nine broadband coean-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.
Keywords:
AWI_GeoPhy; Binary Object; Bransfield back-arc basin, Antarctica; Bransfield Strait; Clock skew; Code; Comment; Cruise/expedition; Date/time end; Date/time start; DEPAS; ELEVATION; Event label; Hydrophone, serial number; Hydrophone gain; Hydrophone polarity; Hydrophone type; LATITUDE; LONGITUDE; Marine Geophysics @ AWI; OBS; Ocean bottom seismometer; ocean-bottom seismometer; Passive seismology; Principal investigator; Project; Recorder, serial number; Recorder type; Sampling rate; Seismometer, serial number; Seismometer gain; Seismometer type; Station label; ZX_BRA02; ZX_BRA03; ZX_BRA04; ZX_BRA05; ZX_BRA08; ZX_BRA09; ZX_BRA10; ZX_BRA11
Type:
Dataset
Format:
text/tab-separated-values, 196 data points
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