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CTD

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  • Approximately 25% of Antarctic Bottom Water has its origin as dense water exiting the western Ross Sea, but little is known about what controls the release of dense water plumes from the Drygalski Trough. We deployed two moorings on the slope from February, 2018, to January, 2019, to investigate the water properties of the bottom water exiting the region at Cape Adare and the relationship with the seasonal cycle, winds, and tides. Mooring P2 was placed at 1750 metres depth on the slope at Cape Adare at the same location as an earlier deployment of mooring CA1 in the CALM experiment (Gordon et al., 2015). Instruments on P2 were placed at the same depths as CA1 to continue that time series. Mooring P3 was placed on the same isobath on the slope at the mouth of the Drygalski Trough to measure the water properties moving along the slope from the east. Findings from the observations are described in Bowen et al. (2021). 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.

  • MARLEY (Monitoring deep-seA coRaL EcosYstems) is a deep seafloor observing system dedicated to the monitoring of cold-water coral habitats. The system is deployed in the Lampaul canyon off Brittany, France since August 2021 and maintained each year during the ChEReef-Obs cruises. The study site is a coral garden dominated by Madrepora oculata, located on a sedimented platform at 780 m depth. MARLEY is equipped with a CTD SBE 37-SIP, an oxygen optode Aanderaa (4330 or 4831), an ADCP Teledyne RDI Workhorse 300kHz, a turbidity sensor Wetlabs ECO NTU (sensitivity: 0-1000 NTU), a sediment trap Technicap PPS 4/3 – 24 bottles and a camera module. The camera module, which can be moved from up to 30 m from the main station, is equipped with a camera AXIS Q1786, two flash lights and a fluorometer & scattering meter SEA-BIRD ECO FLNTU. All sensors are controlled and synchronised by the Communication and Storage Front-end - 2nd generation (COSTOF2), which is also managing data storage. Optical sensors are protected from fouling by electrochlorination (20 seconds, each 6 hours). The oxygen optode is calibrated each year prior to deployment. These datasets provide raw data from the oxygen optode Aandera 4831, the CTD Seabird SBE37, the Wetlabs ECO NTU and the SEAR-BIRD ECO FLNTU covering the period 28/08/2021 to 19/01/2022, with a frequency of 15 minutes. Data from Wetlabs ECO NTU include raw counts and Nephelometric Turbidity Unit (NTU) derived from manufacturer’s calibration with Scale Factor = 0.0611 and Dark Counts = 50. Data form SEABIRD ECO FLNTU include raw counts at 695 nm (Chlorophyll) and 700 nm (Turbidity). Chlorophyll concentration (µg/l) is derived from manufacturer’s calibration with Scale Factor = 0.0180 and Dark Counts = 48. Nephelometric Turbidity Unit (NTU) is derived from manufacturer’s calibration with Scale Factor = 0.0481 and Dark Counts = 50. 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 consists of a glider deployment in greater Te Moana-o-Raukawa (Cook Strait) as part of the DeepSouth National Science Challenge in Aotearoa New Zealand. This submission continues from previous deployments uploaded to SEANOE (doi:10.17882/76530). Survey uses a Teledyne Webb Research Slocum G2 glider equipped with a pumped SeaBird CTD to measure conductivity, temperature, and pressure, along with instruments to measure dissolved oxygen, chlorophyll-a fluorescence, backscatter at 470, 532, 660, and 700nm, chromophoric dissolved organic matter (CDOM), and photosynthetically active radiation (PAR). Part-way through the deployment, in order to save battery, the science package was turned on only during downcasts and these subsequently appear as empty casts in the dataset. Science data were processed using the GEOMAR Glider Toolbox (https://git.geomar.de/open-source/geomar_glider_toolbox). Comparison with the previously-utilized SOCIB (Troupin et al. (2015), doi: 10.1016/j.mio.2016.01.001) toolbox shows negligible differences in outputs. Data have been averaged into vertical bins of 1dBar (~1m). Despite processing to minimize lag-error in salinity (following Garau et al., 2011, doi: 10.1175/JTECH-D-10-0503.1), some casts (n=10, out of 4246 total) were made empty after visual inspection in T-S space. Oxygen data were lag-corrected, whereas other variables are presented as-is without further processing. Depth-integrated water velocity derived from GPS and dead-reckoning are included. 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.

  • Researchers from INAPESCA, IPN-UPIICSA and UNICARIBE join forces to obtain and analyze oceanographic and fisheries information within the framework of the capture of red and rock shrimp in the fishing area known as the Caladeros de Contoy, which covers approximately 485 km2 about 70 km northeast of Cabo Catoche. The measurements were carried out over four days, from September 23 to 27, 2023. These campaigns are organized each year by the Regional Aquaculture and Fisheries Research Center of Puerto Morelos Quintana Roo belonging to the National Institute of Fisheries and Aquaculture (CRIAP- PM, INAPESCA) to generate information, and together with other elements, be able to define the shrimp ban year after year. In this campaign, 12 sampling points of accompanying fauna (FAC) in the shrimp fishery were covered. This year, 3 campaigns were carried out in which, in addition to the FAC samples, other additional measurements were also included and in this one the University of the Caribbean (UNICARIBE) participated through the Educational Program (PE) of Environmental Engineering (IA) of the Department of Basic Sciences and Engineering (DCBEI). The measurements carried out were oceanographic with CTD equipment (Acronym for Conductivity, Temperature, Depth), which measures temperature and salinity profiles. Plankton was also collected with a trawl net with a flowmeter and water samples were collected both on the surface and at depths of between 30 to 50 meters, to measure its quality and pH in situ. Videos of the seabed were also taken with a GoPro camera between 30 to 50 meters deep. In total, 6 plankton stations, 10 CTD and 7 water quality and pH stations were carried out and 5 videos of the seabed were captured. The sea conditions were calm (calm sea), except for two days with medium swells with waves up to 4 meters high and estimated currents of more than 1.5 m/s. These activities are also framed according to the Collaboration Agreement between UNICARIBE and the Interdisciplinary Professional Unit of Engineering and Administrative Social Sciences (IPN-UPIICSA), of the Chemistry Academies. The collaboration agreement between UNICARIBE and INAPESCA is in process.  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 set of CTD measurements places the fresh water discharge into the sea, which is located in Punta Esmeralda in the City of Playa del Carmen, State of Quintana Roo, in the Mexican Caribbean Sea. For these measurements two measuring instruments were used; a CTD for temperature and salinity profiles and a USGS type AA current meter to measure discharge to the sea, applying two methodologies for the measurement of volumetric flow according to FAO, (2009). Punta Esmeralda is a beach site that has three springs on the beach which form a freshwater lagoon about 60 meters long by 25 wide and a deep part of 1.6 meters. This lagoon is located at the coordinates 20.648372 ° N 87.050909 ° W. The discharge of water forms a small stream with a stream 6 meters wide with a bathymetric profile with a maximum depth of 0.40 m. These dimensions change over time due to natural and artificial processes. The fresh water discharge to the sea has an average flow of 0.2142 m3 /s , at an average speed of 0.1305 m /s. The sampling points with the CTD were a total of 61 and were distributed throughout the lagoon, the output of the three largest springs and a small "cenote" that is located about 76 meters away from the beach, were also performed sampling points in the sea at a distance of 100 meters from the coast and 2 meters deep. The salinity ranges measured in the springs was 4 UPS and it was increasing to the sea with 35 UPS. With temperatures in the springs from 25.8 ° C to 30.8 ° C in the sea.   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 campaign was carried out on May 15, 2021 on the route between Puerto Juárez and the Arrowsmith Bank course or “Bajo del Este”, as the fishermen call it. The bank is located 40 km east of Punta Cancun at coordinates 21°05'00''N-86°28'00''W. The ship's captain Guillermo Antonio Carrillo Corzo alias the "Teacher", a pilot (Cap. Watermelon) and a sailor (El Chalán). The goal was carry out temperature and salinity measurements in the water column at each of the CTD stations. Direction: 10 stations with a separation of 4 km between each one were planned. Stations 1 to 6 were covered without difficulty; however, at station 7 the waves and the current increased their intensity considerably, so no progress was made to the following stations. the diagram salinity temperature profiles of each station (aligned West to East) The salinity is between 35 and 36 UPS and in turn from 28 °C to 25.5 °C. The depth ranges at the stations were from 1 to 57 m deep. 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 May 2018, an unprecedented long and intense seismic-volcanic crisis broke out off the island of Mayotte (Indian Ocean) and was associated with the birth of the Fani Maoré underwater volcano. Since then, an integrated observation network has been created (REVOSIMA), with the given objective of monitoring and better understanding underwater volcanic phenomena. Recently, an unmanned submarine glider (SeaExplorer) has been deployed to supplement the data obtained during oceanographic surveys (MAYOBS) which are carried out on an annual basis. This glider is operated by ALSEAMAR and performed a continuous monitoring of 30 months of the water column with the objective to acquire hydrological properties, water currents and dissolved gas concentrations. This monitoring already showed that it is feasible and valuable to measure autonomously, continuously and at a high spatio-temporal scale, physical (TEMP, SAL, water currents) and biogeochemical parameters (O2, CH4, PCO2, bubbles/droplets, vertical speeds) over several months from a SeaExplorer glider. In particular, innovating sensing capabilities (e.g., MINI-CO2, ADCP) have shown a great potential in the context of the Mayotte seismic volcano crisis, despite technical challenges (complex algorithms, sensor capabilities, etc.). This dataset provides these physical and biogeochemical parameters from September 17, 2021 to April 02, 2024 and the quality flags associated.    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.

  • Region: Varna lakes (Black Sea) Period of observation: 2023 Type of measurements: data from water column profiling

  • Region: Varna lakes (Black Sea) Period of observation: 2023 Type of measurements: data from water column profiling

  • The RESILIENCE experiment took place in April and May 2022 on the R/V Marion Dufresne in the Southwestern Indian Ocean, South of the Mozambique Chanel and offshore of Durban (South Africa). The main scientific objective was to study the interaction at fine scale (about 10km) between physics and biology. To do so CTD stations were performed accompanied by MVP profiles, measuring temperature, conductivity (hence salinity) and fluorescence. The MVP is performing profiles downward in a free-fall mode and upward, towed by a cable. This instrument is subject to many errors. Here we have first corrected the sensors offset between the CTD and MVP. Second, we have also corrected the thermistor viscous heating and the thermal lag between the thermistor and the conductivity cell. Third, we have corrected the thermal mass error on the lowering profiles. Only temperature and conductivity/salinity measurements are corrected. 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.