AndreaBozzo/ceres-open-data-index huggingface dataset:
Conductivity, temperature and pressure, data from the EGIM deployed on EMSO-Azores observatory, 2017-2018

This dataset contains conductivity, temperature and pressure data acquired between July 2017 and August 2018 on EMSO-Azores observatory by the EGIM. These are 3 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…
Ornithological observations in the southeast of the North Sea between June 1971 and January 1972

Counts of marine bird species observed during three oceanographic cruises in the South-eastern part of the North Sea on board of the A962 "Mechelen" between June 1971 and January 1972. The data were digitized by VLIZ from the original report: Joiris, C. (1972). Observations ornithologiques réalisées dans le sud-est de la Mer du Nord entre juin 1971 et janvier 1972: 1. Oiseaux marins.
A total of 82 h (in 41 days) was spent watching birds during three oceanographic cruises (June-July 1971, August-September 1971 and January 1972 in the South-eastern part of the North Sea.
Maritime Limits, Irish Continental Shelf

Under the United Nations Convention on the Law of the Sea (UNCLOS) the continental shelf is that part of the seabed over which a coastal State exercises sovereign rights with regard to the exploration and exploitation of natural resources including oil and gas deposits as well as other minerals and biological resources of the seabed. The legal continental shelf (consisting of the shelf, the slope and the rise) extends out to a distance of 200 nautical miles from the coastline, or further if the shelf naturally extends beyond that limit (as it does in Ireland's case).
Studies of seafloor bedforms formed by the Mediterranean Outflow Water in the Gulf of Cadiz (C)

Photogram of seafloor displaying different types of bedforms affecting sandy deposits in the continental slope of the Gulf of Cadiz, just downstream of the Strait of Gibraltar. These bedforms are formed by the action of the Mediterranean Outflow Water which produces a complex patterns of bedforms from decametre to centimetre scales on the seafloor and remain poorly understood
The 2014 Greenland-Portugal GEOVIDE water masses data (GO-SHIP A25 and GEOTRACES GA01)

The GEOVIDE cruise was carried out coast to coast between Portugal and Newfoundland via the south tip of Greenland, following the OVIDE line in the eastern part and crossing the Labrador Sea in the western part. The classical hydrographic rosette was cast 163 times at 78 different geographical positions called stations. While the CTD-O2 probe acquired continuous profiles of the “physical” variables (pressure, temperature, salinity and dissolved oxygen), 22 Niskin bottles were closed at different levels during the upcast to provide samples for biogeochemical analysis. After calibration, we find precisions for pressure, temperature, salinity and dissolved oxygen that fit the GO-SHIP international quality requirements. In parallel, but not simultaneously, a trace-metal rosette (TMR) was cast 53 times, also acquiring profiles of physical variables, and equipped with 24 Go-Flo bottles adapted for the sampling of trace metals. Depending on the number of operations, stations were identified as “Short” (one single CTD cast), “Large” (3 CTD casts), “XLarge” (up to 6) and “Super” (up to 11). All along the track of the ship, current magnitude and direction was measured by Ship Acoustic Doppler Current Profilers, down to 1000m depth.

This dataset reports for the water mass proportions (from 0 to 1, i.e., from 0 to 100%) for the classical rosette for the following water masses: East North Atlantic Central Water of 16ºC (ENACW16) and of 12 ºC (ENACW12); Subpolar Mode Water of 8ºC (SPMW8), of 7ºC (SPMW7) and of the Irminger Sea (IrSPMW); Labrador Sea Water (LSW); Subarctic Intermediate Water of 6ºC (SAIW6) and of 4ºC (SAIW4); Mediterranean Water (MW); Iceland–Scotland Overflow Water (ISOW); Denmark Strait Overflow Water (DSOW); Polar Intermediate Water (PIW); and North-East Atlantic Deep Water lower (NEADWL).  The dataset also contains the changes in oxygen due to the remineralisation of organic matter (DO2bio; in µmol kg-1).
Selected data from the glider missions in Eastern Mediterranean performed in 2023

The datasets contains selected data from the underwater glider missions in Eastern Mediterranean performed in April-May and in August 2023 by Institute of Marine Sciences, Middle East Technical University (METU-IMS). The glider was donated to METU-IMS by Is Bankasi - the national commercial bank in Turkey. 
The underwater glider SeaExplorer X2 of ALSEAMAR is equipped with the following instruments: 1) RBRlegato³ C.T.D (non-pumped flow) with temperature, conductivity and pressure sensors; 2) JFE Advantech Co. Rinko Fast Optical DO sensor; 3) Wet Labs ECO Puck (fluorescence and turbidity); 4) Sea-Bird Scientific Deep SUNA Ocean Nitrate Sensor; 5) Altimeter.
The research area is between mainland and Cyprus bounded by a rectangle with coordinates 35.52°-36.1°N, 33.2°-33.5°E. The first mission with internal number 16 was carried out in period April, 26 – May, 16, 2023, the second mission with internal number 20 was carried out in period August, 2 – August, 27, 2023. The first and last transects from each mission are included in the dataset.
The dataset is submitted as zip-archive containing 110 .gz files. Each .gz file contains instrument output acquired within one glider dive cycle.
Mapping of turbiditic fans at the present-day seafloor of the Alboran sea (SW Mediterranean)

For the mapping of the turbiditic fans a database with over 1500 km of 2D multi- and single-channel seismic lines, with different degrees of resolution (from a few metres to metric) together with high-resolution multi-beam bathymetry has been analysed and interpreted. Multi-channel seismic records were downloaded from the Archivo Técnico de Hidrocarburos (https:// geoportal.minetur.gob.es/ATHv2/welcome.do). Single-channel records were mostly obtained with airgun systems (140 to 530 c.i.) and are included in the database from the Instituto de Ciencias del Mar, ICM-CSIC, http://www.icm.csic.es/geo/gma/SurveyMaps. Several multi-beam bathymetry datasets obtained with Simrad
EM12 and Atlas HYDROSWEEP DS multibeam echosounders were also
compiled and integrated for the present study from the ALBA,
MARSIBAL, CONTOURIBER and SARAS projects and the Fishing General
Secretary (Spanish Government). These data are gridded to a resolution
of 50 m
Publication: Ercilla, G., Juan, C., Hernández-Molina, F. J., Bruno, M., Estrada, F., Alonso, B., ... & Ammar, A. (2016). Significance of bottom currents in deep-sea morphodynamics: an example from the Alboran Sea. Marine Geology, 378, 157-170.
Juvenile fish densities and megafaunal isotopic data in the Bay of Concarneau and the Bay of Vilaine (Brittany, France)

The shared data are (i) sizes (in cm) and densities (indiv.per1000m&sup2;) of juvenile fish and (ii) isotopic data (deltaC and deltaN) for macro- and mega-invertebrates, juvenile fish, and organic matter sources. These data are for 3 habitats (i.e. Sternaspis scutata, Amphiura filiformis/Owenia fusiformis, and Haploops nirae habitats, respectively coded as Code.Habitat 1, 2, and 3) in two coastal bays of South Brittany; the Bay of Concarneau (Code.Bay 1) and the Bay of Vilaine (Code.Bay 2). See the map attached to the dataset for more details.
Air-Sea Interaction: Heat and Momentum Fluxes based on data records from the R/V Angeles Alvarino around Spanish waters (2013-2023)

This dataset presents air-sea interaction fluxes derived from meteorological and sea surface (thermosalinometer) data collected between 2013 and 2023 aboard the R/V Angeles Alvarino operated by the Spanish Institute of Oceanography (IEO; IEO-CSIC since 2022). The files include sensible (SHFL) and latent (LHFL) heat  (positive towards the atmosphere), as well as momentum fluxes (MOFL, representing wind stress directed towards the sea surface). These were computed using the bulk aerodynamic approximation (Large and Yeager, 2009), which include atmospheric and oceanic measurements. Accordingly, the datasets also provide both meteorological and thermosalinometer data recorded along the vessel's trajectory, which are essential for these calculations. Meteorological variables used for calculations include atmospheric pressure at sea level (ATMS), air temperature (DRYT), relative humidity (RELH), wind speed (WSPD), and total incident radiation (RDIN), which encompasses both longwave and shortwave components. Although RDIN is not directly used for flux calculations, it is included because it complements the heat storage balance of the ocean alongside the flux variables. The sea surface temperature is stored as TEMP. The monthly files are stored in monthly Medar/Medatlas-format (Lowry et al., 2024). with hourly resolution. They are named as follows: "29AJ_YYYYMM.dat", where "29AJ" identifies the vessel (according to C17 SeaDataNet vocabulary),"YYYY" represents the year, and "MM" indicates the month. The dataset has undergone quality control procedures in accordance with SeaDataNet guidelines (Schaap and Lowry, 2010). As per the Medar/Medatlas format, quality control flags are included in an additional column to supplement the described variables The calculation of air-sea interaction fluxes depends on the simultaneous availability of meteorological and thermosalinometer data. When the required variables are unavailable, the flux columns are omitted. However, the remaining experimental variables are preserved, as they provide independent scientific value, contributing to the interpretation of flux signs, trends, proportionality, and behavior.
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.
Studies of seafloor bedforms formed by the Mediterranean Outflow Water in the Gulf of Cadiz (D)

Photogram of seafloor displaying different types of bedforms affecting sandy deposits in the continental slope of the Gulf of Cadiz, just downstream of the Strait of Gibraltar. These bedforms are formed by the action of the Mediterranean Outflow Water which produces a complex patterns of bedforms from decametre to centimetre scales on the seafloor and remain poorly understood
Total phytoplankton inventory in the Southern Bight of the North Sea between 1973 and 1974

Phytoplankton abundances and cell counts for 45 stations in the Southern Bight of the North Sea between November 1973 and May 1974.The data are digitized from technical reports in the frame of the 4DEMON project.
The dataset provides information on abundances and densities of phytoplankton species for 45 "Mechele" stations in the North Sea between November 1973 and 10 May 1974. Samples were taken from different depths. Additional information (count of living or dead cells) is given.
Laminaria digitata distribution in Molene archipelagos, France

A habitat distribution modelling approach was used to model the spatial distribution of the two main species of kelp forests along Mol├¿ne archipelagos (France). Lineage: Data represents percentage cover of kelp forest as well as biomass of the 2 main species: L. digitata and L. hyperoborea. The used approach consists in firstly establishing surveys and appropriate processing methods in order to provide a detailed underwater topography of the area and to accurately delineate hard substrates (bedrock) potentially colonized by kelp. Secondly, a habitat suitability model is fitted for each species on some carefully selected field stations, measuring kelp presence/absence and biomass. Predictive maps are produced, based on hard substrate areas previously delineated. Type of occurrence data used: In situ data were acquired in the period from late summer to early autumn. Information on the presence/absence of Laminaria species was acquired by towing a high definition video. Species-specific biomass were sampled at low tide for the intertidal areas and by Scuba diving for the sub-tidal areas. Environmental covariates/explanatory variables: PresenceÔÇôabsence of L. digitata distribution was best determined through the combined effects of depth, sediment proximity along current direction, benthic position index (BPI), immersion rate and winter temperature. The sub-model for biomass of L. digitata where present, was predicted using the additional contribution of several variables, with light being the most important (55.62% of deviance explained) and its interactions withwave exposure and spring temperature. Total suspended matter contributed little and only then through the interaction with light. The best model that explained 78.89% of deviance for the presence of L. hyperborea included depth, winter temperature, sediment proximity along current direction and BPI Biomass where L. hyperborea was present was mainly modeled by the same predictors as presence/absence Algorithm/modelling approach: Kelp biological response (presence/absence or biomass) was estimated using Generalized Additive Models (GAM)
EMODnet Human Activities, Environment, Nationally Designated Areas

The dataset on Nationally Designated Areas was created in 2014 by Cogea for the European Marine Observation and Data Network (EMODnet). It includes polygons and points and it is based on the 'NatDA_2025_v01_public' both geographical and tabular datasets from the European Environmental Agency (EEA) and it is available for viewing and download on EMODnet web portal (Human Activities, https://emodnet.ec.europa.eu/en/human-activities). The European inventory of Nationally designated areas holds information about designated areas and their designation types, which directly or indirectly create protected areas. The Nationally designated areas is the official source of protected area information from the 38 European member countries to the World Database of Protected Areas (WDPA). The inventory began in 1995 under the CORINE programme of the European Commission. The NatDA is now an agreed annual Eionet core data flow maintained by the European Environment Agency (EEA) with support from the European Topic Centre on DataIntegration and Digitalisation (ETC DI). The dataset is used by the EEA and e.g. the UNEP-WCMC for their main European and global assessments, products and services. The data can be queried online in the European Nature Information System (EUNIS). Geographical coverage: Albania, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Kosovo (under UNSC Resolution 1244/99), Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden and Switzerland. The EEA does not have permission to distribute some or all sites reported by Estonia, Ireland and Türkiye. In the webmap the dataset has been filtered in order to show only marine and coastal areas. Where available each polygon/point has the following main attributes: CDDA ID, country code, country name, site name, legal foundation date, national ID, area type/code (Designated Boundary or Site), IUCN category/description (Ia: Strict Nature Reserve; Ib: Wilderness Area; II: National Park; III: Natural Monument or Feature; IV: Habitat/Species Management Area; V: Protected Landscape/ Seascape; VI: Protected area with sustainable use of natural resources; Not applicable; Not assigned; Not reported. For more information please check the 'Guidelines for Applying Protected
Area Management Categories' available at: https://portals.iucn.org/library/sites/library/files/documents/PAG-021.pdf), area (ha), major ecosystem type (Marine, Marine and terrestrial, Terrestrial), marine area percentage, spatial resolution (Scale 100K-250K, Scale Larger 100K, Unknown), remarks, marine/coastal location of features (1) as per Cogea's calulation. For further information please visit the EEA's website. Compared with the previous release, this one includes the public version 23.00 of the Nationally designated areas dataset published by the EEA in August 2025.
Potential reefs (1170)

The marine habitat type data concerns the modelling work carried out within the Finnish Inventory Programme for the Underwater Marine Environment (VELMU) in spring 2015. The task was done in cooperation between the Geological Survey of Finland (GTK) and Åbo Akademi University (ÅA). The work included the modelling of the marine habitats included in the Annex 1 of the Habitats Directive: reefs (1170) and sandbanks, which are slightly covered by sea water all the time (1110). The aforementioned marine habitat types are specified on the basis of seabed substrate type and topographic form and they can overlap one another. The objective was to produce comprehensive maps of the occurrences of reefs and sandbanks throughout the entire marine area of Finland based on the best data available. The criteria to determine the marine habitats were discussed with the responsible bodies and the instructions (version 5.1), which include more precise criteria for determining marine habitat types than the Natura 2000 Habitats Manual (Airaksinen & Karttunen 2001), for a Natura 2000 inventory were utilised. On the basis of different criteria and test analyses, a decision was made to model potential rocky reefs which includes sites that are likely to have reef occurrences. The data concerning the marine habitats of restricted areas has been removed.
EMODnet Digital Bathymetry (DTM 2024) - Tile A7

The "EMODnet Digital Bathymetry (DTM)- 2024" is a multilayer bathymetric product for Europe’s sea basins covering:
•  the Greater North Sea, including the Kattegat and stretches of water such as Fair Isle, Cromarty, Forth, Forties,Dover, Wight, and Portland 
•  the English Channel and Celtic Seas  
•  Western Mediterranean, the Ionian Sea and the Central Mediterranean Sea 
•  Iberian Coast and Bay of Biscay (Atlantic Ocean) 
•  Adriatic Sea (Mediterranean) 
•  Aegean - Levantine Sea (Mediterranean). 
•  Madeira and Azores (Macaronesia) 
•  Baltic Sea 
•  Black Sea 
•  Norwegian and Icelandic Seas 
•  Canary Islands (Macaronesia) 
•  Arctic region and Barentz Sea

The DTM is based upon 22032 bathymetric survey data sets and Composite DTMs that have been gathered from 66 data providers from 28 countries riparian to European seas and beyond. Also Satellite Derived Bathymetry data products have been included fro Landsat 8 and Sentinel satellite images. Areas not covered by observations are completed by integrating GEBCO 2024 and IBCAO V4.

The source reference layer in the portal viewing service gives metadata of the data sets used with their data providers; the metadata also acknowledges the data originators. The incorporated survey data sets itself can be discovered and requested for access through the Common Data Index (CDI) data discovery and access service that contains > 41.000survey data sets from European data providers for global waters. The Composite DTMs can be discovered through the Sextant Catalogue service. Both discovery services make use of SeaDataNet standards and services and have been integrated in the EMODnet portal (https://emodnet.ec.europa.eu/en/bathymetry#bathymetry-services ).
In addition, the EMODnet Map Viewer (https://emodnet.ec.europa.eu/geoviewer/ ) gives users wide functionality for viewing and downloading the EMODnet digital bathymetry such as:
• water depth (refering to the Lowest Astronomical Tide Datum - LAT) in gridded form on a DTM grid of 1/16 * 1/16 arc minute of longitude and latitude (ca 115 * 115 meters).
• option to view depth parameters of individual DTM cells and references to source data
• option to download DTM in 59 tiles in different formats: ESRI ASCII, XYZ, EMODnet CSV, NetCDF, GeoTiff and SD
• option to visualize the DTM in 3D in the browser without plug-in
• layer with a number of high resolution DTMs for coastal regions
• layer with wrecks from the UKHO Wrecks database.

The EMODnet DTM is also available by means of OGC web services (WMS, WFS, WCS, WMTS), which are specified at the EMODnet Bathymetry portal.  
The original datasets themselves are not distributed but described in the metadata services, giving clear information about the background survey data used for the DTM, their access restrictions, originators and distributors and facilitating requests by users to originator.
Macrophytes occurrence data within French Mediterranen Lagoon since 2006

The French Mediterranen Lagoon Monitoring Network (RSL project) was rolled out in 2000 within the framework of the "SDAGE Rhône Méditerranée Corse"
It recommends the fight against eutrophication and the creation of new monitoring programs. In this context, it applies the results of a study defining indicators for the level of eutrophication and the development of a diagnostic tool for eutrophication status (in lagoons), applicable to routine. The RSL is the result of a partnership between the "Ifremer", the "Région Languedoc-Roussillon" and the "Agence de l’Eau Rhône Méditerranée Corse". The coordination is carried out by the "Cépralmar". French macrophyte occurence data are collected during RSLPHY monitoring surveys on Mediterranean coast.
Distribution of benthic macroinvertebrate living modes in European seas

This series of products displays the main functional types of benthic macroinvertebrates derived from a multivariate analysis of 13 life history traits. Several occurrence lists from EMODnet Biology were combined. A multivariate analysis of the life history traits revealed three main living modes. All final outcomes were interpolated by DIVAnd, the n-dimensional Data Interpolating Variational Analysis tool.
The first living mode one comprises species resistant to physical stress in natural conditions through a strong mobility, a short life cycle and a high offspring survival probability. The second one is composed of opportunistic species, also with a relatively short life span, among which many are pioneer species which are not very habitat-specific. The third group is composed of species which require many years or even decades to achieve.

DIVAnd version 2.1.0 was used to interpolate the observations to maps:

Alexander Barth. (2018, September 3). Gher-ulg/DIVAnd.jl: v2.1.0 (Version v2.1.0). Zenodo. http://doi.org/10.5281/zenodo.1407912
Chemische analyse van PAK's, Organotin, PCB's, PBDE's en organochloor pesticiden als mogelijke endocriene verstoorders Schelde-estuarium

Water, sediment, gesuspendeerde materie en biota werden bemonsterd in de Westerschelde in 2002. Alle matrices werden onderzocht op PAK's, Organotin,  PCB's, PBDE's en organochloor pesticiden mbv GCMS en GCMS/MS.
In order to evaluate the potential risk of endocrine disruptors, the occurrence of these compounds needs to be documented. Water, sediment, suspended matter and biota were sampled along the Western Scheldt from 2002 to 2006. All matrices were analysed for PAK's, Organotin, PCB's, PBDE's and OCl pesticides using GCMS and GCMS/MS. The aim this part of the ENDIS-RISKS project is to give an overview of the occurrence and the concentration of the selected endocrine disruptors in the Scheldt estuary.