Measurements of atmospheric and oceanographic variables (wind speed and direction, relative humidity, dew point, atmospheric pressure and temperature, sea temperature, pressure and salinity) were collected from the Kalloni Bay mooring (26.2084, 39.1677) in Lesvos Island. The reference for this dataset is found at the scientific publication https://doi.org/10.17882/100845.

The data concern nutrient concentrations in the water column from five selected stations in the Cretan Sea and the southeastern Ionian Sea. The samples were collected during the oceanographic cruise that took place in April 2025 within the framework of the CLIMPACT project. Water samples were collected using the rosette sampling system aboard the R/V AEGAEO, at discrete depths throughout the water column, from the surface to the seabed at each station. Depending on the maximum depth of each station, samples were collected from 12 to 18 discrete depths. The...

The data refer to fifteen-day and monthly measurements of sinking particulate matter in the marine areas of the northern Aegean, Cretan, Ionian Seas and the Levantine/northeastern Mediterranean. The collection instruments were PPS3/3 Technicap sediment traps with collection areas of 0.125 m² and 12 receiving cups. The locations and corresponding depths of the trap deployments for the different areas are as follows: Historical biogeochemical flux data for the time period 2015: A) Northern Aegean Sea (station M2, Athos Basin): 39°58.16′ N, 24°43.48′ E; d...