Pressure and temperature records from the proximity of the Rainbow hydrothermal site.  The record spans from 8th to 26th May 2022. Data were acquired with an RBR Duet pressure sensor lent by PNIO. The pressure sensors was deployed on a broad band OBS (BBOBS) from the INSU national OBS parc at IPGP. Datafiles includes the full raw data file, and a file with only the record at the seafloor, after removing the ascent and the descent of the instrument, attached to the BBOBS) The seafloor position of the OBSs is: 36.23544°N, 36.91036°W, 2505 m waterdepth (~2538 m average depth recorded in this record). Important Note: This submission has been initially submitted to SEAscieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.

This dataset contains high-precision pressure and temperature between the 15th of January 2020 and the 15th of June 2020 on EMSO-Canarias (a.k.a. ESTOC) observatory by the EGIM. High-precision pressure is one of the 7 core parameters monitored by the EGIM, EMSO Generic Instrumental Module. The EGIM prototype was deployed at the ESTOC site at 3580m depth, 100km North of Gran Canaria, to monitor local hydrodynamic variability and complement the data obtained by the ESTOC station. Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.

In October 2014, a ranging network of 10 acoustic transponders was installed across an active segment of the North-Anatolian Fault, in the Marmara Sea at a depth of about 800 m, for up to 5 years (Figure 1).  This active fault segment is lacking any major seismic activity since the 18th century.  The purpose of this acoustic ranging experiment was to determine whether this fault is continuously and aseismically creeping (i.e. slipping) or is locked and thus accumulating stress that could cause a large magnitude earthquake, few ten kilometers away from Istanbul. The acoustic network comprised 4 transponders from the University of Brest, France, and 6 transponders from the Geomar Institute, Germany. The data available through this web site corresponds to the data collected by the 4 French stations only. They include sets of acoustic ranging between pairs of stations (i.e. two-way-travel times), in addition to sound-speed, temperature and pressure measurements at each station. The sampling rate varies with the data type, but is generally hourly (one or several samples every hour). These are the raw, unprocessed data. For instance, distances must be inferred from the two-way-travel times and sound-speeds. The experiment lasted until January 2018. Data collection: In April 2015, the first set of acoustic ranging data, spanning a period of 6 months, was downloaded from the seafloor transponders using a modem from the sea surface ((cruise POS484)-[http://dx.doi.org/10.3289/CR_POS_484/1]). In April 2016, a second set of acoustic ranging data, spanning one more year, was downloaded from the seafloor transponders, but only 3 of the transponders responded ((cruise POS497)-[http://dx.doi.org/10.3289/CR_POS_497]). In May 2017, a third set of acoustic ranging data was downloaded from the seafloor transponders, but only 3 of the transponders responded (cruise YUNUS17). In January 2018, a last set was downloaded, but only 3 of the transponders responded (cruise YUNUS17). Since the batteries were almost exhausted, two of the French transponders were retrieved from the seafloor (2002 and 2003, for which all the data had already been downloaded from the surface). The last two will be recovered in 2020 (2001 and 2004). More information about the acoustic network can be found in the paper by (Sakic et al.)-[https://doi.org/10.1002/2016GL069600] (2016; see reference below). Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.

EMSO is a European network of seabed and fixed-point water column observatories whose scientific objective is to acquire long time series in the seas around Europe for the study of environmental processes related to interactions between geosphere, biosphere and hydrosphere. MAREGAMI project (MARine Earthquake Gap Assessment and Monitoring for Istanbul) is a bilateral Turkish-French collaborative project coordinated by IFREMER and Istanbul Technical University and funded by ANR and TÜBITAK. The goal of MAREGAMI was the development of new methods and monitoring strategies to assess earthquake and tsunami risks related to offshore faults, with tasks: (1) Marine geodesy: acquisition and processing of geodetic submarine data, (2) Hydrodynamics and specific depositional processes: water column data acquisition and hydrodynamic modeling, (3) Improving earthquake relocation with ocean bottom instruments, (4) Designing an optimal and sustainable network of submarine sensors. Data distributed here were acquired for MAREGAMI Task 2.  These consist of time series acquired during 4 deployments on the sealfoor perfomed between January 2018 and November 2020 of an instrumented frame holding a RBR bottom pressure recorder (BPR) and a Seaguard recording current meter (RCM) equipped with additional sensors (conductivity, oxygen, tide pressure end temperature). The acquisition and distribution of marine data time series in the Sea of Marmara is funded by EMSO-France Research Infrastructure, EMSO-Link, and MAREGAMI projet. DT-INSU provided operational support and instrumentation. Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.

A comprehensive set of oceanographic data were collected in Fortune Bay, a broad, mid-latitude fjord located on the south coast of Newfoundland (Canada). The dataset was gathered in partnership with IFREMER who collected data around the adjacent French archipelago of Saint-Pierre and Miquelon. The dataset consists of data from taut-line moorings, land-based stations (a tide gauge and a couple of weather stations) and CTD profiles performed during mooring maintenances (~every 6 months). Parameters covered by the moorings include water column temperature (thermistor chain), salinity (2 points/depths per mooring), dissolved oxygen (on a limited number of moorings, within the surface layer) as well as current profiles (ADCP). Land-based stations monitored water level and temperature (tide gauge) and wind speed and direction, atmospheric pressure, air temperature and solar radiation (weather station). CTD profiles include dissolved oxygen for the most part. The program lasted two full years from May 2015 to May 2017 and sampling interval varied from 1-60 min depending on the instrument. Important Note: This submission has been initially submitted to SEA scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI. The metadata elements have been further processed (refined) in EMODnet Ingestion Service in order to conform with the Data Submission Service specifications.

This dataset contains pressure data acquired between July 2017 and August 2018 on EMSO-Azores observatory by the EGIM. The pressure is one of the 7 core parameters monitored by the EGIM, EMSO Generic Instrumental Module. The EGIM prototype was deployed at Lucky Strike hydrothermal vent site, 25 m south west of the active edifice Tour Eiffel, to monitor local hydrodynamic variability and complement the data obtained by the numerous sensors set on this site: oceanographic mooring deployed south of the vent field, the multidisciplinary Seamon East node, autonomous current meters, array of temperature probes.