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Water column temperature and salinity

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  • A survey was carried out in the marine area southwest of Puerto Morelos, specifically in the area that corresponds to the Puerto Morelos Arrecife National Park. In order to study the marine currents and the associated phenomena, a route was made from the coast towards the open sea, up to approximately 2 km, a value far from that proposed in the planning because the climatic conditions were not favorable. This tour was carried out on September 11, 2019 in the morning, lasting approximately 2 hours, where measurements were made at 6 stations; From station 3 the swell began to be noticed, stations 4 and 5 were located inside the reef and the sixth station was on the dock. The variables measured were: temperature, wind direction and speed, relative humidity and turbidity. The CTD measurements were processed using contour & surface-mapping software surfer 8 to generate temperature profiles, and a map of the course was created in QGIS with the coordinates recorded with the GPS. Measurements of wind speed and direction made it possible to explain its influence on the general circulation of the sea surface. 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.

  • ocenographic datasets

  • ocenographic datasets

  • Elephant Seals Data - Valdes peninsula in October 2021 from the NAUTILOS project (www.nautilos-h2020.eu)

  • Physical data associated with the AMAZOMIX cruise. The Amazon shelf encompasses a variety of physical processes, such as fluvial inputs, coastal currents, mesoscale, filaments, tides, internal waves and upwelling, influencing nutrient concentrations, chlorophyll and suspended matter. They also affect energy, salt and heat balances; parameters that condition physical/biogeochemical interactions and ecosystem functioning, from bacteria to plankton to fish resources. In particular, internal tidal waves are very energetic in this region. They impact biogeochemical cycles via the vertical mixture induced by their dissipation or vertical movements induced by their propagation. They thus allow a significant input of nutriments into the euphotic layer enhancing primary production, as observed on the surface from watercolour data. Internal tidal waves could thus influence the biological pump and the carbon cycle. In addition, overall marine biodiversity of the region, from bacteria to fish is not well described. The connectivity of species in the tropical Atlantic is also still an open question. The Caribbean region is by far more bio-diverse than the Brazilian one. One of the hypotheses is that the Amazon plume, which can extend up to 3,000 km off the mouth, would constitute a barrier for some organisms. The Amazon Shelf is thus an ideal experimental laboratory to study the impact of physical processes on the structure and function of neritic and oceanic marine ecosystems. In this context, the objective of the multidisciplinary AMAZOMIX survey was to study the impact of the Amazon River plume, internal tides and associated turbulent mixing, on marine ecosystem in contrasting regions off the Amazon shelf. For that purpose, the multidisciplinary AMAZOMIX project brings together physicists, biogeochemists, bioopticians and biologists. The sampling strategy consists in the simultaneous acquisition of a comprehensive set of environmental and biological compartments, including micro-organisms (bacteria, phyto and zooplankton) and higher trophic levels (micronekton, demersal and pelagic fish). AMAZOMIX is the first campaign to develop this multi-disciplinary approach off the Amazon shelf. In situ results will be analysed in interaction with digital tools and data, modelling (1/36°, with and without tides, 1/12° coupled) and satellite data analyses. This dataset contains the AMAZOMIX 2021 qualified measurements of  - The hydrographic CTD-02 (netCDF and csv text files) - Ship Acoustic Doppler Current Profilers (OS 75 kHz, netCDF and csv text files) - Lowered Acoustic Doppler Current Profilers (WH300 downlooking and WH300 uplooking, netCDF and csv text files) - Thermosalinometer (netCDF and csv text files) - Vertical microstructure profile (VMP-250, binary file)   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 aim of this campaign was to understand and identify controls on biogeochemistry of Belize's coastal zone and the influence of the Belize river. Data were collected in October 2019 over five days - during daylight hours, with the aim of capturing wet season influence of the river, however Belize experienced a drought. Data were collected to enhance and calibrate data collected by the Autonomous Surface Vehicle C-worker 4 as part Commonwealth Marine Economies Programme Belize (CMEP Belize). Discrete water samples were collected for dissolved O2, chlorophyll, nutrients, dissolved organic carbon (DOC), absorbance, and fluorescent dissolved organic matter (FDOM), total alkalinity (TA), dissolved inorganic carbon (DIC), particulate nitrogen (PN), stable carbon-13 isotope DIC (d13C-DIC) and stable nitrogen-15 isotope PN (d15N-PN) and particulate organic carbon (POC). This is an update to a previous version of the dataset (published 2021) which additionally includes (TA, DIC, d13C-DIC and POC, PN and salinity data). All samples were collected using a 5L Niskin at ~0.5 m depth - the depth of C-worker 4 sensors. Dissolved O2, absorbance and chlorophyll samples were run in country by Winkler Method, Spectrophotometry Absorbance and Fluorescence respectively. Samples for nutrients, DOC, FDOM, TA, DIC, d13C-DIC, POC, PN were transported back to the UK for analysis. Both frozen (nutrients) and refrigerated samples (DOC and FDOM) were transported back to the UK in cool bags with frozen samples defrosting enroute back to the UK in preparation for immediate analysis. Absorbance was run a second time back in the UK at the same time as FDOM (both absorbance runs are included).

  • oceanographic stations from Cybo2010

  • oceanographic stations, xbt data

  • oceanographic datasets

  • ocenographyc datasets