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Acoustics

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  • The current dataset contains data on 63 Hz and 125 Hz 1/3 octaves of continuous underwater noise (Descriptor D11.2) recorded on four different locations in two periods (during off tourist season) of December-2018

  • This data set contains station data of top-to-bottom oceanic current measurements performed with Lowered Acoustic Doppler Current Profilers (LADCP) during the Med-SHIP cruise TAlPro2022 (Toulone - La Spezia, RV Belgica, 17/05/2022 - 26/05/2016). The LADCP devices in use were a downward and an upward-looking ADCP of type Teledyne RDI Workhorse Monitor 300 kHz. Station data of zonal and meridional oceanic velocities are reported in [cm/s] on a 4 m vertical grid.

  • The RV Arni Fredriksson collected simultaneous information on hydrology, prey and Brunnichs/common guillemot from 18 to 25/06/2022 in north-west Iceland. 5 transects of 60km length were succesfully completed twice in shelf-waters. A 6th transect of ~ 40km length was performed once in Arnarfjordur. During transects, 2 observers recorded the 2D distribution of all seabirds using European Seabird At-Sea (ESAS) methodology. At the same time, a scientific echosounder (Simrad EK80) operating at 5 frequencies (18, 38, 70, 120, 200 Khz) recorded the 3D distribution of fish. 22 trawls (plankton, midwater and demersal) were performed in response to schools and layers detected in the scientific echosounder, offering insights into their species composition and length-frequencies. 107 CTDs were performed at intervals along transects to measure the 3D variation in temperature, salinity, flourescene and turbidity.

  • The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean. It lies in a central position along the main paths followed by the upper and lower limbs of the Meridional Overturning Cell (MOC), which contributes at moderating the European climate in creating a transport of heat toward the North Atlantic. Our hypothesis is that the Reykjanes Ridge influences the main components of the upper and lower limbs of the MOC because it is a strong constraint on the horizontal and vertical circulation, it impacts the water mass distribution and evolution and it is a region of intense turbulent mixing. The objective of the RREX project is to conduct a process study in order to better understand the role of the Reykjanes Ridge on the dynamics and water mass transformation in the subpolar gyre and ultimately on the MOC. This project relied on two hydrographic cruises carried out in 2015 and 2017 to acquire the adequate dataset to (1) provide a synoptic high-resolution and full depth survey to monitor the flow along and across the ridge, (2) to quantify the variability of the vertical and horizontal structure of the currents parallel to the ridge at daily to seasonal time-scales and (3) to provide sufficient turbulence observations to monitor the heterogeneous and intermittent mixing processes. This dataset currently provides the measurements from the 133 CTDO2 stations realized during the RREX2015 cruise, carried out from the 5th of June to the 10th of July 2015. At each station, the following measurements are available: (1) pressure, temperature, conductivity and dissolved oxygen measurements with a CTDO2 probe, (2) salinity and oxygen concentration data from sea water samples at 28 levels. It also provides OS38 and OS150 S-ADCP data acquried in transit during the RREX2015 cruise. The two datasets were processed and adjusted following Petit et al. 2018 [http://doi.org/10.13155/53471].   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 data set contains the post-processed current profiles collected by means of a vessel-mounted ADCP (on the Belgia vessel RV BELGICA) in the Western Mediterranean Sea during May 2022. The TAlPro2022 cruise was part of the Med-SHIP programme. During the whole campaign a VM-ADCP (RDI Ocean Surveyor, 75 KHz) worked along the ship route. The depth range of the current profiler is about 725 m. Data acquisition is carried out using the RDI VMDAS software vers. 1.50.19. The number of bins has been set to 80, with a bin size of 10 m . The instrument ran in narrowband mode and was controlled by computers using the conventional RDI VMDAS software under a MS Windows system with a pinging set to be as fast as possible. No interferences with other used acoustical instruments were observed.

  • This dataset was produced during the Eurofleets + PORO-CLIM cruise. Project PORO-CLIM was conceived to study interplay between the first-order geological processes of continental rifting and break-up, Large Igneous Province emplacement, and global climate change, and to provide ship-based training for a cohort of international students. Cruise CE21008, the PORO-CLIM data acquisition cruise, carried out a marine geophysical survey of the POrcupine and ROckall continental passive margins, to investigate the cause of the Paleocene/Eocene Thermal Maximum, a natural CLIMate change event that is the closest deep-time analogue of anthropogenic environmental change (though the modern change is happening much faster). Project PORO-CLIM also includes a three year post-cruise data work-up phase. 65 expendable bathytherograph (XBT) probes (T-5, T-11) were deployed to constrain the seismic velocity in the water layer. Sound speed was calculated assuming a constant salinity of 34.9 psu. The €1.2M project is funded by the EU Horizon 2020 EuroFleets+ programme, the PIPCORSG industrial consortium and the Irish Marine Research Programme.

  • Underwater noise monitoring was performed for two weeks in front of the town of Split, which is the third-largest passenger port in the Mediterranean. Data was collected by SonoVault self-recording instrument mounted above the sea bottom close to the passenger port. Sound pressure levels were averaged at the one hour intervals

  • Underwater noise monitoring was performed for two weeks in front of the town of Split, which is the third-largest passenger port in the Mediterranean. Data was collected by SoooVault self-recording instrument mounted above the sea bottom close to the passenger port. Sound pressure levels were averaged at the 1-minute intervals

  • Underwater noise monitoring was performed for two weeks close to the island of Žirje in the middle Adriatic Sea. Data was collected by SonoVault self-recording instrument mounted above the sea bottom. Sound pressure levels were averaged at 1-minute intervals.

  • Underwater noise monitoring was performed for two weeks close to the Island of Žirje, the middle part of the Croatian Adriatic Sea. Data was collected by SonoVault self-recording instrument mounted above the sea bottom close to the passenger port. Sound pressure levels were averaged at the one-hour intervals