hydrological and hydrochemical data for Mediterranean Sea for 31-12-1947 - 26-05-1948

This dataset gather isotopic ratios measured on 359 fish, sharks and crustaceans collected between 200 and 800 m depth, in the Mediterranean canyons during MEDITS 2012 and 2013 surveys 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 the pressure and temperature data acquired by piezometer MAR2-PZML-01 from July 2021 following its deployment during the (MaRoLiS cruise)-[https://doi.org/10.17600/18002394] and its connection to the EMSO-Ligure Nice cabled observatory. Pressure has been measured together with temperature at seven different levels below seafloor as shown in the following table: Image Reference: https://www.seanoe.org/data/00851/96265/illustrations/illustration-192.gif. The P1 and P7 absolute pressure sensors have recorded the ambient pressure of the water column through the seawater-filled interior of the piezometer shaft. The P2 to P6 differential pressure sensors have recorded fluid pressure in the sediment pores relative to the water column pressure. 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 the pressure and temperature data acquired below seafloor by piezometer ST4-PZ2L-01B since January 2014 following its deployment during the (STEP 2014 cruise)-[https://doi.org/10.17600/14005400]. It operated in an autonomous mode until its connection to the EMSO-Ligure Nice cabled observatory on the 14/09/2016. Sediment pore pressure together with temperature have been measured at 6 different levels below seafloor as shown in the following table: Image Reference: https://www.seanoe.org/data/00403/51490/illustrations/illustration-195.gif. 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 the pressure and temperature data acquired below seafloor by piezometer SPF-PZ3L since October 2015 following its deployment during the (ESS_PENF50_2015 cruise)-[https://doi.org/10.17600/15010900] . It operated in an autonomous mode until its connection to the EMSO-Ligure Nice cabled observatory on the 14/09/2016. Sediment pore pressure together with temperature have been measured at 20 different levels below seafloor as shown in the following table: Image Reference: https://www.seanoe.org/data/00404/51528/illustrations/illustration-194.gif. 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 the pressure and temperature data acquired below seafloor by piezometer ST4-PZ2L-03 since January 2014 following its deployment during the (STEP 2014 cruise)-[https://doi.org/10.17600/14005400]. It operated in an autonomous mode until its connection to the EMSO-Ligure Nice cabled observatory on the 13/09/2017. Sediment pore pressure together with temperature have been measured at 7 different levels below seafloor as shown in the following table: Image Reference: https://www.seanoe.org/data/00404/51529/illustrations/illustration-196.gif. 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 gathers, total abundance, abundance per size class, total biomass and biomass per size class of two vulnerable fish species, the dusky grouper, Epinephelus marginatus (Lowe, 1834), and the brown meagre, Sciaena umbra Linaeus, 1758, recorded inside and outside the Marine Natural Reserve of Scandola (Corsica, NW Mediterranean) in 2012 and 2018. Fish were recorded by underwater visual censuses performed on belt transects (50 x 15 m) run parallel to the coast between 1 and 40 m depth at 13 sites according to three levels of protection status (integral reserve, buffer zone and unprotected zone). A total of 532 transects were performed in 2012 and 526 in 2018. Image Reference: https://www.seanoe.org/data/00754/86639/illustrations/illustration-134.gif. Corsica 2012-2018-Map Scandola Marine natural Reserve 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  reports ocenanic CO2 parameters measured on discret samples collected at the SOLEMIO station (Bay of Marseille - North Western Mediterranean Sea - aprox. 65 m depth). The SOLEMIO station is part of the French national network of coastal observation SOMLIT (Service d’Observation en Milieu LITtoral – http://somlit.epoc.u-bordeaux1.fr/fr/). Measurements of carbonate chemistry parameters are not routinely measured within the framework of the SOMLIT network. This datased reports fortnightly measurements collected during three years (between june 2016 and june 2018) at three different depth in the water column (Surface, intermediate and bottom). This dataset is constituted of measurements of total alkalinity, total inorganic carbon and pH (on the total scale). Dissolved oxygen concentrations, inorganic nutrients, temperature and salinity (SOMLIT core parameters) are also reported. 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 includes n.5 files containing observational data of a stand-alone mooring, at about 600 m depth along the Levante Canyon of the Eastern Ligurian Sea (44°05.443’N, 9°29.900’E, western Mediterranean). The time series covers the period from November 2020 to October 2022. The dataset includes measurements conducted with two current meters (ADCP RDI QuarterMaster and Nortek Continental) and three CTD probes (SBE37), and provides information about the hydrodynamics and thermohaline properties across almost the entire water column. The mooring is configured and maintained for continuous long-term monitoring being in a particular deep-sea area (about 600 m water depth), that acts as a hot-spot of biodiversity, hosting valuable and vulnerable ecosystems, such as the deep-living cold-water corals. Data are described in the data paper Ciuffardi et al.: Deep water hydrodynamic observations around a Cold-Water Coral habitat in a submarine canyon in the Eastern Ligurian Sea (Mediterranean Sea), Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2022-466, in review, 2023 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.

The CNR realised over 138 experiments in the Mediterranean basin with surface Lagrangian drifters in 12 years, not continuously, between July 1998 and April 2022 (month of the last recovery), at coastal and offshore level. Lagrangian drifters produced and sold by 4 different enterprises have been used in the years, with different characteristics in data transmission, structure, repeatability of the experiments, dimensions, batteries, management of the experiments. The four drifters were used in different periods (see the table): - in 1998-1999 the Coastal Lagrangian Drifter (CLD), by Italian company InnoTech S.c.r.l., designed just for coastal use with GPS transmission of its position, by a Trimble Lassen™ SK8, at a frequency of 5 minutes by a GSM mobile phone. The CLD had a housing in PVC with electronic unit, rechargeable battery pack and antennas at its top. Its dimensions were 140 cm high x 27 cm in diameter with a weight of 12.5 Kg. A drogue was used below the CLD; - in 2009-2010 the ArgoDrifter or CODE drifter by Technocean (FL, USA) consisting in a white cylinder of 110 cm height x 15 cm in diameter with four blue sails placed at 90°, for a total area of about 25 m2. Its not rechargeable batteries permitted transmissions till a year by an ARGOS satellite transmitter, a GPS for its localisation and a temperature sensor. Its position at sea was given by both satellite triangulation and GPS; - in 2014 the Iridium Ocean Drifters (ODi) by the Spanish Albatros Marine Technology SA were small, low-cost, and compact surface buoys localised by a GPS module based on Iridium satellite data transmission system (Short Burst Data - SBD). Its housing were two identical halves of a spherical drifter, sealed with an O-ring of 20 cm in diameter and 3 Kg of weight. Drogues were used below drifters; - in 2015-2022 coastal and offshore Nomad drifters by the Spanish SouthTEK Sensing Technologies S.L. were coastal GPRS, namely the Coastal Nomad, and offshore satellite, namely the Offshore Nomad. Both types were made in plastic, yellow colour, 72 cm in height x 22 cm in diameter and 2.895 Kg of weight. The lithium rechargeable batteries allowed operations up to 7 days to the GPRS and several months to the satellite drifters. In the water, only 16 cm of the cylindrical head were over the sea surface. The Nomad drifters were of different types: LCA (GPRS), LCE (satellite), LCH (hybrid, GPRS and satellite), LCF (satellite with temperature sensor). See the list of experiments per year in the Table Immediately any acquisition drifter data were pre-processed and repeated positions or wrong date/time, usually a failure of GPS receiver and visible on plotted tracks, were manually deleted. This was followed by an editing procedure implemented at OGS (Gerin and Bussani, 2011; Menna et al., 2017) starting with the retrieve of the deployment information then filled into the OGS PostgreSQL database, enriched with other important metadata as the type and characteristics of the instruments, the owner, the principal investigator. Here location errors were also replaced with NaNs based on the evaluation of different potential origins of error like positions outside the Mediterranean or on land, duplicated data or data acquired outside the date/time of the experiment or wrong velocities. Further erroneous data remained were then manually removed through a visual check. In some cases, the drifter trajectory was considered as two different deployments and split into more segments due to important temporal gaps or acquisition frequency modifications during the experiment. A new recovery/deployment information were included in the database and the automatic editing procedure is relaunched. A following step was the interpolation of edited data at uniform intervals using a kriging optimal interpolation method (Hansen and Poulain, 1996): at 1-hour intervals data with a frequency in acquisition between a few minutes and 2 hours; at 3-h intervals with frequency till 6 hours; at 6-h intervals with frequency higher than 6 hours. The velocities were calculated as finite differences of the interpolated position. At the end, from the 366 drifter tracks the shortest (just a few data long) were deleted, not permitting a good interpolation, then a final dataset of 204 interpolated drifter tracks is finally available. The presented dataset is composed of the interpolated data in NetCDF files which include the time, latitude, longitude, zonal and meridional speed, and metadata. To be coherent with other dataset released by OGS other 3 variables (Drogue, SST and Volt) are included in the files although they are all set to NaNs as the related information is not available for this dataset. Image Reference: https://www.seanoe.org/data/00793/90537/illustrations/illustration-157.gif. Bibliography Gerin, R. and Bussani, A.: Nuova procedura di editing automatico dei dati drifter impiegata su oceano per MyOcean e prodotti web in near-real time e delay mode, REL. OGS 2011/55 OGA 20 SIRE, Trieste, Italy, 13 pp., 2011 Hansen, D.V. and Poulain, P.-M.: Quality control and interpolations of WOCE-TOGA drifter data, J. Atmos. Ocean. Technol., 13, 900–909, http://dx.doi.org/ 10.1175/1520-0426(1996)013<0900:QCAIOW> 2.0.CO;2,  1996. Menna, M., Gerin, R., Bussani, A., Poulain, P.-M.: The OGS Mediterranean Drifter Dataset: 1986-2016, Rel. OGS 2017/92 OCE 28 MAOS, Trieste, Italy, 34 pp., 2017. 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.