Seafloor pressure data from two SBE53 pressure gauges on EMSO-Azores observatory, 2018-2019
|Temporal extent||2018-11-08 -2019-06-17|
|Author(s)||Ballu Valérie1, Cannat Mathilde2, Wheeler Benjamin2, Legrand Julien3, Sarradin Pierre-Marie3|
|Affiliation(s)||1 : LIttoral ENvironnement et Sociétés (LIENSs), CNRS/La Rochelle Université, France
2 : Institut de Physique du Globe de Paris, France
3 : Ifremer, Institut Carnot MERS, France
|Keyword(s)||Mid-Atlantic Ridge, EMSO-Azores, Lucky Strike, seafloor pressure, geodesy, deformation, vertical motion, earthquakes, monitoring, tides, timeseries|
This dataset contains seafloor pressure data acquired in the framework of EMSO-Azores observatory between August 2018 and June 2019 using a SBE53 pressure gauges deployed on two sites.
West site : The sensor was deployed on an existing benchmark installed with the submersible Nautile in August 2006 during the GRAVILUCK cruise (https://doi.org/10.17600/6010110). The benchmark sits on hard substratum with light hydrothermal sedimentation, on the North-West border of the Lucky Strike lava lake, next to a hydrothermal site.
East site : The sensor was deployed on an existing benchmark installed by freefall in July 2007 during the MOMARDREAM cruise (https://doi.org/10.17600/7030060). The benchmark sits in the axial valley, East of the LuckyStrike volcano in a lightly sedimented area, with apparent pillow lavas.
Instrument location bathymetric map
|Utilisation||EMSO data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of EMSO data. EMSO data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. EMSO welcomes users to ask questions and report problems to the contact addresses listed in the data files or on the EMSO web page.|
SBE53 Bottom Pressure Recorder (BPR). The sensor measures full ocean depth water level. It provides bottom pressure records by combining a time base with low-power frequency-acquisition circuitry, a Paroscientific Digiquartz® pressure transducer, a non-volatile 32 MB FLASH memory and a precision thermometer.
Parameters: seafloor pressure in psi and seafloor temperature °Celsius
Instrument location :
Installation : CANNAT Mathilde (2018) MOMARSAT2018 cruise, RV L'Atalante, https://doi.org/10.17600/18000514
Recovery: SARRADIN Pierre-Marie, LEGRAND Julien (2019) MOMARSAT2019 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/18001110
Operating parameters: sampling interval 120sec / measurement duration 30sec
Sensor metadata :