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.

Region: Varna lakes (Black Sea) Period of observation: 2022 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

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: 2022 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

Varna lakes stations (Black Sea) Period of observation: 2022 Type of measurements: data from water column profiling

EMSO-LO (European Multidisciplinary See floor Observatory and water column, Western Ligurian Site) is a second generation permanent submarine observatory deployed offshore of Toulon, France. This submarine network is part of the LSPM (Laboratoire Sous-Marin Provence Méditerannée, https://www.km3net.org/) which has a modular topology designed to connect up to 120 neutrino detection units. The Earth and Sea Science (ESS) instrumentation connected to KM3NeT is based on two complementary components: an Instrumented Interface Module (MII), an autonomous mooring line (ALBATROSS) and a Scientific Junction Box (BJS, developed by Ifremer). On the ocean floor, instruments and plateforms can be connected to the BJS whose role is to supply energy and internet connection to the instruments of the site. Among the most relevant novelties, BathyBot is an underwater robot that joined the observatory site for several years, and deployed from a structure called BathyDock. BathyBot - A benthic robot to see the invisible in the depths of the Mediterranean Sea is a remotely-operated, cabled exploration robot. It is dedicated to long-term monitoring of deep-sea environmental variables (oxygen, temperature, salinity, pressure, current - the fluorimeter data flux is available through the aquadopp data flux) as well as biology, thanks to two different cameras (images available through a citizen science project http://ecotaxa.obs-vlfr.fr/). In particular, BathyBot will enable to see the bioluminescence emitted by marine organisms and better understand its ecological role. 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 investigations of Blekinge coast started in 1978. In 1990 the program "Blekinge Kustvattenkontrollprogram." water control program, was formed, building on the stations sampled earlier, but with extended sampling.